kyocera mita taskalfa 3551ci error codes,kyocera mita taskalfa 3551ci hata kodu

0.0 - 0 Yorum var.

Ürün Kodu : kyocera3551error
Marka : KYOCERA

kyocera mita taskalfa 3551 error codes,kyocera mita taskalfa 3551 hata codu

Stokta Var

Fiyat Sorunuz

Code	Description	Remedy
30	FAX control PWB system error	FAX control PWB: 1. Turn the main power swtch off and after 5 seconds, re-mount the FAX controller PWB, then turn power on. 2. Reinstall the fax software. 3. Replace the FAX control PWB.
30	Processing with the fax software was disabled due to a software problem.
70	FAX control PWB incompatible detection error	FAX control PWB (The FAX PWB installed will not be the one designed for the machine.): 1. Install the FAX system designed for the model. 2. Reinstall the fax software.
70	Abnormal detection of FAX control PWB incompatibility In the initial communication with the FAX control PWB, any normal communication command is not transmitted.
80	Option printing system device error.	Defective FPGA for printing system control.: 1. Turn the main power swtch off and after 5 seconds, then turn power on. 2. Replace the main PWB
80	The version of the FPGA for Fiery control is not readable. (Defective FPGA)
100	Backup memory device error	EEPROM(main PWB): 1. Turn the main power swtch off and after 5 seconds, then turn power on. 2. Check that the EEPROM on the main circuit PWB is peroperly installed on the main circuit PWB and, if not, re-install it. 3. Replace the main PWB.
120	MAC address data error	EEPROM(main PWB): 1. Turn the main power swtch off and after 5 seconds, then turn power on. 2. Check the MAC address on the network status page. 3. If it is blank, obtain an EEPROM with its MAC address written from the service support and install. 4. Replace the main PWB.
120	For data in which the MAC address is invalid.
150	Backup memory read/write error (engine PWB)	EEPROM(Engine PWB): 1. Turn the main power swtch off and after 5 seconds, then turn power on. 2. Check that the EEPROM is peroperly installed on the engine PWB and reinstall it. 3. Replace the engine PWB. 4. Check the EEPROM and if the data are currupted, contact the service support.
150	No response is issued from the device in reading/writing for 5 ms or more and this problem is repeated 5 times successively. Mismatch of reading data from 2 locations occurs 8 times successively. Mismatch between writing data and reading data occurs 8 times successively.
160	Backup memory data error (engine PWB)	EEPROM: 1. Turn the main power swtch off and after 5 seconds, then turn power on. 2. Execute U021 - memory initializing 3. If the EEPROM data are currupted, contact the service support.
160	Reading data from EEPROM is abnormal.
170	Billing counting error	EEPROM: 1. Check that the EEPROMs installed in the main PWB and the engine PWB are correct and, if not, use the correct EEPROM for the model. 2. If the EEPROM data are currupted, contact the service support.
	The values on the main circuit PWB and on the engine do not match for any of charging counter, life counter, and scanner counter.	Main PWB: Replace the main PWB.
		Engine PWB: Replace the engine PWB
180	Machine number mismatch	Data damage of EEPROM: 1. Confirm the machine data for the main and engine units by using U004. 2. If the serial number data of different models is alternately displayed, install the correct EEPROM in the PWB of the wrong serial number data. 3. Contact the Service Support.
180	Machine number of main and engine does not match.
350	Panel PWB communication error (electronic volume I2C communication error)	Operation PWB: 1. Turn the main power swtch off and after 5 seconds, then turn power on. 2. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Operation PWB (YC10) and Main PWB (YC6) 3. If the wiring is disconnected, shorted or grounded, replace the wiring.
350	NACK is received during I2C communication -> retried 5 times -> rebooting command sent -> retried 5 times If NACK is still received.	Main PWB: Replace the main PWB.
620	FAX image DIMM error	FAX image DIMM: 1. Install the FAX image DIMM supplied in the FAX system onto the main PWB. 2. Firmly install the FAX image DIMM again onto the main board. 3. Check the FAX image DIMM terminals and remove any foreign objects that may be adhered to it. 4. Replace with a new FAX image DIMM.
620	1. The Fax image DIMM has not been installed. 2. Fax image DIMM access error.
630	DMA error	DP CIS: 1. Reconnect the CIS signal line. 2. Confirm that the CIS connector terminals are firmly connected. Insert the connector all the way in. 3. If the wiring is disconnected, shorted or grounded, replace the wiring.
630	DMA transmission of image data does not complete within the specified period of time.	DP main PWB: Main PWB 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. 2. If the wiring is disconnected, shorted or grounded, replace the wiring. Wiring that connects the CIS and the DP controller PWB. Wiring that connects the DP main PWB and the main PWB. 3. Replace the DP main PWB. 4. Replace the main PWB.
640	Hard disk error	HDD: 1. If an abnormal noise is heard from the HDD, replace the HDD. 2. Check the SATA wiring between the HDD and the main circuit PWB for loose connection, disconnection and damages, and that it is connected into the correct terminal. Main PWB: YC1,YC27 YC2,YC32 (45/55 ppm model) 3. Replace the SATA cable. 4. Execute U024 to initialize (FULL) the HDD. 5. If an error is detected after executing U024, replace the HDD.
640	The hard disk cannot be accessed.	Main PWB: Replace the main PWB
650	FAX image DIMM check error	FAX DIMM: 1. Confirm that a used FAX image DIMM was used instead of the FAX image DIMM contained in the FAX system. 2. If a DIMM that was used with other unit has been installed, execute maintenance mode U671 - Recovery FAX DIMM. 3. Check whether the Fax DIMM is properly inserted into the socket on the main PWB. 4. Replace with a new FAX image DIMM.
650	A fax image DIMM which was used with another machine is installed.	Main PWB: Replace the main PWB.
660	Hard disk encryption key error	EEPROM: 1. Execute U004 if this occurs after the EEPROM has been changed.
		HDD: 1. If an abnormal noise is heard from the HDD, replace the HDD. 2. Check the SATA wiring between the HDD and the main circuit PWB for loose connection, disconnection and damages, and that it is connected into the correct terminal. Main PWB: YC1,YC27 YC2,YC32 (45/55 ppm model) 3. Replace the SATA cable. 4. Execute U024 to initialize (FULL) the HDD. 5. If an error is detected after executing U024, replace the HDD.
		Main PWB: Replace the main PWB
670	Hard disk overwriting erasure error	HDD: 1. If an abnormal noise is heard from the HDD, replace the HDD. 2. Check the SATA wiring between the HDD and the main circuit PWB for loose connection, disconnection and damages, and that it is connected into the correct terminal. Main PWB: YC1,YC27 YC2,YC32 (45/55 ppm model) 3. Replace the SATA cable. 4. Execute U024 to initialize (FULL) the HDD. 5. If an error is detected after executing U024, replace the HDD.
670	Hard disk overwriting erasure error	Main PWB: Replace the main PWB.
800	Image processing error	Main PWB: Replace the main PWB
800	JAM010X is detected twice.	Main PWB: Replace the main PWB
830	FAX control PWB flash program area checksum error	FAX software: 1. Reinstall the fax software.
830	A checksum error occurred with the program of the FAX control PWB.	FAX control PWB: 1. Execute initializing by U600. 2. Replace the FAX control PWB.
840	Faults of RTC	Battery ( main PWB): 1. Make sure that the back-up batteries on the main PWB are not short-circuited. 2. Reset Maintenance T by executing U906 . 3. If the same C call is displayed when power is switched on and off, replace the back up battery. 4. If communication error (due to a noise, etc.) is present with the RTC on the main circuit PWB, check the PWB is properly grounded.
840	(“Time for maintenance T” is displayed) [Check at power up] The RTC setting has reverted to a previous state. The machine has not been powered for 5 years (compared to the settings stored periodically in the EEPROM). The RTC setting is older than 00:01 on January 1, 2000. [Checked periodically (in 5- minute interval) after powered up] The RTC setting has reverted to a state older than the last time it was checked. 10 minutes have been passed since the previous check. After C840 is detected, the machine enters in disconnection mode after the main power switch has been switched on and off and indicates ‘Maintenance T.’	Main PWB: Replace the main PWB
870	PCFAX control PWB to main PWB high capacity data transfer error	FAX control PWB: 1. Turn the main power swtch off and after 5 seconds, re-mount the FAX controller PWB, then turn power on. 2. Replace the FAX control PWB.
	High-capacity data transfer between the FAX control PWB and the main PWB of the machine was not normally performed even if the data transfer was retried the specified times.	HDD: Execute U024 to initialize the HDD.
		Main PWB: Replace the main PWB
920	Fax file system error	FAX control PWB: 1. Execute initializing by U600 (Refer to the FAX service manual). 2. Replace the FAX control PWB.
920	The backup data is not retained for file system abnormality of flash memory of the FAX control PWB.
980	24 V power down detect	Power source PWB: 1. Check the +24V output is given at YC12- 1 to 3 of the power circuit PWB. 2. Replace the power source PWB
980	If a 24V power disconnection signal is observed and a 12V power disconnection signal is observed simultaneously for one second.
1000	MP lift motor error	Manual feed lift base elevating mechanism: 1. Check that the paper lift base of the manual feed tray can smoothly ascend and descent, if not, repair or replace. 2. Check that the lift lever is located so that it can ascend or descend by the lift motor cam and that it not damaged and, if necessary, re-install or replace the manual feed table.
	If the MP lift sensor 1 (upper limit detect) or 2 (bottom detect) is not detectable to be turned on while the MP lift motor is ascending or descending.	MP lift motor: 1. Check that the paper elevator has been ascended. 2. Check the drive gear can rotate or they are not unusually loaded and, if necessary, replace. 3. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. MP lift motor and Relay PWB (YC3) Relay PWB (YC12) and Feed PWB1 (YC17) Feed PWB1 (YC1) and Engine PWB (YC6) 4. If the wiring is disconnected, shorted or grounded, replace the wiring. 5. Replace the MP lift motor.
		MP lift sensor1 MP lift sensor2: 1. Check that the sensor is correctly positioned. 2. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. MP lift sensor1,2 and Relay PWB (YC3) Relay PWB (YC12) and Feed PWB1(YC17) Feed PWB1 (YC1) and Engine PWB (YC6) 3. If the wiring is disconnected, shorted or grounded, replace the wiring. 4. Replace the MP lift sensor1 or MP lift sensor2.
		Feed PWB 2: Replace the Feed PWB 2.
		Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
1010	Lift motor 1 error	Cassette lift base elevating mechanism: Check that the cassette base can be manipulated smoothly, if not, repair or replace.
	After cassette 1 is inserted, lift sensor 1 does not turn on within 12 s. This error is detected 5 times successively. The lock signal of the motor is detected continuously for 1 s. This error is detected 5 times successively.	Lift motor 1: 1. Check that the cassette base has been ascended. 2. Check the drive gear can rotate or they are not unusually loaded and, if necessary, replace. 3. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Lift motor 1 and Feed PWB 2 (YC3) Feed PWB 2 (YC1) and Engine PWB (YC4) 4. If the wiring is disconnected, shorted or grounded, replace the wiring. 5. Replace the lift motor 1.
		Lift sensor 1: 1. Check that the sensor is correctly positioned. 2. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Lift sensor 1 and Feed PWB 2 (YC8) Feed PWB 2 (YC1) and Engine PWB (YC4) 3. If the wiring is disconnected, shorted or grounded, replace the wiring. 4. Replace the lift sensor1.
		Feed PWB 2: Replace the Feed PWB 2.
		Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
1020	Lift motor 2 error	Cassette lift base elevating mechanism: Check that the cassette base can be manipulated smoothly, if not, repair or replace.
	After cassette 2 is inserted, lift sensor 2 does not turn on within 12 s. This error is detected 5 times successively. The lock signal of the motor is detected continuously for 1 s. This error is detected 5 times successively.	Lift motor 2: 1. Check that the cassette base has been ascended. 2. Check the drive gear can rotate or they are not unusually loaded and, if necessary, replace. 3. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Lift motor 2 and Feed PWB 2 (YC3) Feed PWB 2 (YC1) and Engine PWB (YC4) 4. If the wiring is disconnected, shorted or grounded, replace the wiring. 5. Replace the lift motor 2.
		Lift sensor 2: 1. Check that the sensor is correctly positioned. 2. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Lift sensor 2 and Feed PWB 2 (YC8) Feed PWB 2 (YC1) and Engine PWB (YC4) 3. If the wiring is disconnected, shorted or grounded, replace the wiring. 4. Replace the lift sensor2.
		Feed PWB 2: Replace the Feed PWB 2.
		Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
1030	PF lift motor 1 error (paper feeder)	Cassette lift base elevating mechanism: Check that the cassette base can be manipulated smoothly, if not, repair or replace.
	After cassette 3 is inserted, PF lift sensor 1 does not turn on within 12 s. This error is detected 5 times successively. During driving the motor, the lift overcurrent protective monitor signal is detected for 1 s or more 5 times successively. However, the first 1 s after motor is turned on is excluded from detection.	PF Lift motor 1: 1. Check that the cassette base has been ascended. 2. Check the drive gear can rotate or they are not unusually loaded and, if necessary, replace. 3. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. PF Lift motor 1 and main PWB (YC7) 4. If the wiring is disconnected, shorted or grounded, replace the wiring. 5. PFReplace the lift motor 1.
		PF Lift sensor 1: 1. Check that the sensor is correctly positioned. 2. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. PF Lift sensor 1 and PF main PWB (YC7) 3. If the wiring is disconnected, shorted or grounded, replace the wiring. 4. Replace the lift sensor 1.
		PF main PWB: Replace the PF main PWB (Refer to the service manual for the paper feeder).
1040	PF lift motor 2 error (paper feeder)	Cassette lift base elevating mechanism: Check that the cassette base can be manipulated smoothly, if not, repair or replace.
	After cassette 4 is inserted, PF lift sensor 2 does not turn on within 12 s. This error is detected 5 times successively. During driving the motor, the lift overcurrent protective monitor signal is detected for 1 s or more 5 times successively. However, the first 1 s after motor is turned on is excluded from detection.	PF Lift motor 2: 1. Check that the cassette base has been ascended. 2. Check the drive gear can rotate or they are not unusually loaded and, if necessary, replace. 3. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. PF Lift motor 2 and PF main PWB (YC7) 4. If the wiring is disconnected, shorted or grounded, replace the wiring. 5. Replace the PF Lift motor2.
		PF Lift sensor 2: 1. Check that the sensor is correctly positioned. 2. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. PF Lift sensor 2 and PF main PWB (YC7) 3. If the wiring is disconnected, shorted or grounded, replace the wiring. 4. Replace the PF Lift sensor 2.
		PF main PWB: Replace the PF main PWB (Refer to the service manual for the paper feeder).
1050	SM lift motor error (side multi tray)	Cassette lift base elevating mechanism: Check that the cassette base can be manipulated smoothly, if not, repair or replace.
	[45 ppm/55 ppm model] After cassette 5 is inserted, SM lift sensor does not turn on within 12 s. This error is detected 5 times successively. (Time to detect is 2 seconds at the second time and later.) During driving the motor, the lift overcurrent protective monitor signal is detected for 1 s or more 5 times successively. However, the first 1 s after motor is turned on is excluded from detection.	SM Lift motor: 1. Check that the cassette base has been ascended. 2. Check the drive gear can rotate or they are not unusually loaded and, if necessary, replace. 3. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. SM Lift motor and SM main PWB (YC5) 4. If the wiring is disconnected, shorted or grounded, replace the wiring. 5. Replace the SM Lift motor.
		SM Lift sensor: 1. Check that the sensor is correctly positioned. 2. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. SM Lift sensor and SM main PWB (YC7) 3. If the wiring is disconnected, shorted or grounded, replace the wiring. 4. Replace the SM Lift sensor.
		SM main PWB: Replace the SM main PWB (Refer to the service manual for the paper feeder).
1060	PF lift motor 1 error (side paper feeder)	Cassette lift base elevating mechanism: Check that the cassette base can be manipulated smoothly, if not, repair or replace. PF Lift motor 1: 1. Check that the cassette base has been ascended. 2. Check the drive gear can rotate or they are not unusually loaded and, if necessary, replace. 3. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. PF Lift motor 1 and PF main PWB (YC7) 4. If the wiring is disconnected, shorted or grounded, replace the wiring. 5. Replace the lift motor 1.
	[45 ppm/55 ppm model] After cassette 6 is inserted, PF lift sensor 1 does not turn on within 12 s. This error is detected 5 times successively. (Time to detect is 2 seconds at the second time and later.) During driving the motor, the lift overcurrent protective monitor signal is detected for 1 s or more 5 times successively. However, the first 1 s after motor is turned on is excluded from detection. *:The lift over-current protection monitor signal has been detected for 200ms or longer where LFC is installed.	PF Lift sensor 1: 1. Check that the sensor is correctly positioned. 2. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. PF Lift sensor1 and PF main PWB (YC5) 3. If the wiring is disconnected, shorted or grounded, replace the wiring. 4. Replace the lift sensor 1.
		PF main PWB: Replace the PF main PWB (Refer to the service manual for the paper feeder).
1070	PF lift motor 2 error (side paper feeder)	Cassette lift base elevating mechanism: Check that the cassette base can be manipulated smoothly, if not, repair or replace.
	[45 ppm/55 ppm model] After cassette 7 is inserted, PF lift sensor 2 does not turn on within 12 s. This error is detected 5 times successively. (Time to detect is 2 seconds at the second time and later.) During driving the motor, the lift overcurrent protective monitor signal is detected for 1 s or more 5 times successively. However, the first 1 s after motor is turned on is excluded from detection. *:The lift over-current protection monitor signal has been detected for 200ms or longer where LFC is installed.	PF Lift motor2: 1. Check that the cassette base has been ascended. 2. Check the drive gear can rotate or they are not unusually loaded and, if necessary, replace. 3. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. PF Lift motor 2 and PF main PWB (YC7) 4. If the wiring is disconnected, shorted or grounded, replace the wiring. 5. Replace the PF Lift motor2
		PF Lift sensor2: 1. Check that the sensor is correctly positioned. 2. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. PF Lift sensor 2 and PF main PWB (YC4) 3. If the wiring is disconnected, shorted or grounded, replace the wiring. 4. PFReplace the lift sensor2.
		PF main PWB: Replace the PF main PWB (Refer to the service manual for the paper feeder).
1100	PF lift motor 1 error (large capacity feeder)	Paper feeder lift base elevating mechanism: Check that the cassette base can be manipulated smoothly, if not, repair or replace.
	After cassette 3 is inserted, PF lift sensor 1 does not turn on within 23 s. This error is detected 5 times successively. (Time to detect is 2 seconds at the second time and later.) During driving the motor, the lift overcurrent protective monitor signal is detected for 200 ms or more 5 times successively. However, the first 1 s after PF lift motor 1 is turned on is excluded from detection.	PF Lift motor1: 1. Check that the cassette base has been ascended. 2. Check the drive gear can rotate or they are not unusually loaded and, if necessary, replace. 3. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. PF Lift motor 1 and PF main PWB (YC7) 4. If the wiring is disconnected, shorted or grounded, replace the wiring. 5. Replace the PF lift motor1.
		PF Lift sensor1: 1. Check that the sensor is correctly positioned. 2. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. PF Lift sensor 1 and PF main PWB (YC5) 3. If the wiring is disconnected, shorted or grounded, replace the wiring. 4. Replace the PF lift sensor1.
		PF main PWB: Replace the PF main PWB (Refer to the service manual for the paper feeder).
1110	PF lift motor 2 error (large capacity feeder)	Paper feeder lift base elevating mechanism: Check that the cassette base can be manipulated smoothly, if not, repair or replace.
	After cassette 4 is inserted, PF lift sensor 2 does not turn on within 23 s. This error is detected 5 times successively. (Time to detect is 2 seconds at the second time and later.) During driving the motor, the lift overcurrent protective monitor signal is detected for 200 ms or more 5 times successively. However, the first 1 s after PF lift motor 2 is turned on is excluded from detection.	PF Lift motor 2: 1. Check that the cassette base has been ascended. 2. Check the drive gear can rotate or they are not unusually loaded and, if necessary, replace. 3. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. PF Lift motor 2 and PF main PWB (YC7) 4. If the wiring is disconnected, shorted or grounded, replace the wiring. 5. Replace the PF Lift motor2.
		PF Lift sensor2: 1. Check that the sensor is correctly positioned. 2. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. PF Lift sensor 2 and PF main PWB (YC4) 3. If the wiring is disconnected, shorted or grounded, replace the wiring. 4. Replace the PF Lift sensor 2.
		PF main PWB: Replace the PF main PWB (Refer to the service manual for the paper feeder).
1140	SD lift motor error (side deck)	Paper feeder lift base elevating mechanism: Check that the cassette base can be manipulated smoothly, if not, repair or replace.
	After cassette 5 is inserted, SD lift sensor does not turn on within 30 s. The lock signal of the motor is detected continuously for 200 ms.	SD Lift motor: 1. Check that the cassette base has been ascended. 2. Check the drive gear can rotate or they are not unusually loaded and, if necessary, replace. 3. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. SD Lift motor and SD main PWB (YC8) 4. If the wiring is disconnected, shorted or grounded, replace the wiring. 5. Replace the SD Lift motor.
		SD Lift sensor: 1. Check that the sensor is correctly positioned. 2. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. SD Lift sensor and SD main PWB (YC5) 3. If the wiring is disconnected, shorted or grounded, replace the wiring. 4. Replace the SD Lift sensor.
		SD main PWB: Replace the SD main PWB (Refer to the service manual for the paper feeder).
1250	SM multi feed sensor communication error (side multi tray)	Side multi tray: Check the wiring connection status with the main unit and, if necessary, try connecting it again.
	[45 ppm/55 ppm model] A communication error is detected 3 times in succession.	SM main PWB: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. SM main PWB (YC1) and Engine PWB (YC19) 2. If the wiring is disconnected, shorted or grounded, replace the wiring. 3. Replace the SM main PWB (Refer to the service manual for the paper feeder).
		Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB .
1350	SM multi feed sensor error (side multi tray)	SM multi feed sensor: 1. Check that the sensor is correctly positioned. 2. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. SM multi feed sensor and SM main PWB (YC11) 3. If the wiring is disconnected, shorted or grounded, replace the wiring. 4. Replace the SM multi feed sensor.
1350	[45 ppm/55 ppm model] The SM multi feed sensor has detected multi feeding 5 times successively.	SM main PWB: Replace the PF main PWB (Refer to the service manual for the paper feeder).
1400	Rotary guide motor error	Rotary guide motor: 1. Check the rotary guide and drive gear can rotate or they are not unusually loaded and, if necessary, replace. 2. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Rotary guide motor and BR PWB (YC5) 3. If the wiring is disconnected, shorted or grounded, replace the wiring. 4. Replace the rotary guide motor.
1400	The guide sensor is not detected to be on at the home position detection with the rotary guide for three times in a row.	BR PWB: Replace the BR PWB.
1410	Rotary de-curler error	Rotary de-curler motor: 1. Check the rotary de-curler and drive gear can rotate or they are not unusually loaded and, if necessary, replace. 2. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Rotary de-curler motor and BR PWB (YC5) 3. If the wiring is disconnected, shorted or grounded, replace the wiring. 4. Replace the rotary de-curler motor.
1410	If the de-curler won’t turn On/ Off despite it has been activated for 400 steps during waiting for the de-curler sensor to be On/Off three times in a row.	BR PWB: Replace the BR PWB.
1450	SM multi feed sensor backup error (side multi tray)	SM multi feed sensor: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. SM multi feed sensor and SM main PWB (YC11) 2. If the wiring is disconnected, shorted or grounded, replace the wiring. 3. Replace the SM multi feed sensor.
1450	[45 ppm/55 ppm model] When writing the data, read and write data does not match 3 times in succession. Deleting a block has failed three times in a row. Writing won’t complete in 200 ms after writing has commenced.	SM main PWB: Replace the PF main PWB (Refer to the service manual for the paper feeder).
1710	Side multi tray incompatible detection error	The side multi tray is installed with a device to which it is incompatible: Install the side multi-tray with the target model.
1710	[30 ppm/35 ppm model] The side multi tray has been installed with a device to which it is incompatible.
1800	Paper feeder communication error	Paper feeder: Check the wiring connection status with the main unit and, if necessary, try connecting it again.
	A communication error from paper feeder is detected 10 times in succession.	PF main PWB: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. PF main PWB (YC13) and Engine PWB (YC19) 2. If the wiring is disconnected, shorted or grounded, replace the wiring. 3. Replace the PF main PWB (Refer to the service manual for the paper feeder).
		Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
1810	Side multi tray communication error	Side multi tray: Check the wiring connection status with the main unit and, if necessary, try connecting it again.
	[45 ppm/55 ppm model] A communication error from side multi tray is detected 10 times in succession.	SM main PWB: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. SM main PWB (YC1) and Engine PWB (YC19) 2. If the wiring is disconnected, shorted or grounded, replace the wiring. 3. Replace the SM main PWB (Refer to the service manual for the paper feeder).
		Engine PWB: Check the engine software and upgrade to the latest, if necessary. Replace the engine PWB.
		SM main PWB: Replace the SM main PWB (Refer to the service manual for the paper feeder).
1820	Side paper feeder communication error	Side paper feeder: Check the wiring connection status with the main unit and, if necessary, try connecting it again.
	[45 ppm/55 ppm model] A communication error from paper feeder is detected 10 times in succession.	SM main PWB: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. SM main PWB (YC1) and Engine PWB (YC19) 2. If the wiring is disconnected, shorted or grounded, replace the wiring. 3. Replace the SM main PWB (Refer to the service manual for the paper feeder).
		PF main PWB: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. PF main PWB (YC13) and SM main PWB (YC4) 2. If the wiring is disconnected, shorted or grounded, replace the wiring. 3. Replace the PF main PWB (Refer to the service manual for the paper feeder).
		Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
1900	Paper feeder EEPROM error	PF main PWB (EEPROM): 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. 2. Replace the PF main PWB (Refer to the service manual for the paper feeder).
1900	When writing the data, read and write data does not match 3 times in succession.
1910	Side multi tray EEPROM error	SM main PWB (EEPROM): 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. 2. Replace the SM main PWB (Refer to the service manual for the paper feeder).
1910	[45 ppm/55 ppm model] When writing the data, read and write data does not match 3 times in succession.
1920	Side paper feeder EEPROM error	PF main PWB: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. 2. Replace the PF main PWB (Refer to the service manual for the paper feeder).
1920	[45 ppm/55 ppm model] When writing the data, read and write data does not match 3 times in succession.
1950	Intermediate transfer belt unit EEPROM error	Transfer belt sensor: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Engine PWB (YC27) and RFID PWB (4P connector) (Check wirings on the RFID side since the signal line for the intermediate transfer belt sensor EEPROM on the engine PWB and the signal line for the toner container RFID are the same.) Intermediate transfer belt unit and Engine PWB (YC3) 2. If the wiring is disconnected, shorted or grounded, replace the wiring. 3. Replace the Intermediate transfer belt unit.
1950	No response is issued from the device in reading/writing for 5 ms or more and this problem is repeated 5 times successively. Mismatch of reading data from 2 locations occurs 8 times successively. Mismatch between writing data and reading data occurs 8 times successively.
2101	Developer motor K error	Developer unit K: 1. Check that the developer waste lock has been released and, if not, release the lock . 2. Check that the gears and spiral screw of the developer unit are not damaged. 3. Confirm that the developer roller can rotate. 4. If it won't rotate, replace the developer unit.
	After developer motor K is driven, the ready signal does not turn to L within 5 s. After developer motor K is stabilized, the ready signal is at the H level for 5 s continuously.	Developer motor K: 1. To check the motor operation, execute DLP(K) by U030 . 2. Check the drive gear can rotate or they are not unusually loaded and, if necessary, replace. 3. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Developer motor K and Motor control PWB (YC7) Motor control PWB (YC3) and Engine PWB (YC9) 4. If the wiring is disconnected, shorted or grounded, replace the wiring. 5. Replace the Developer motor K.
		Motor control PWB: Replace the Motor control PWB
		Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
2103	Developer motor MCY error	Developer unit MCY: 1. Check that the developer waste lock has been released and, if not, release the lock . 2. Check that the gears and spiral screw of the developer unit are not damaged. 3. Confirm that the developer roller can rotate. 4. If it won't rotate, replace the developer unit.
	After developer motor MCY is driven, the ready signal does not turn to L within 5 s. After developer motor MCY is stabilized, the ready signal is at the H level for 5 s continuously.	Developer motor MCY: 1. To check the motor operation, execute DLP(MCY) by U030 . 2. Check the drive gear can rotate or they are not unusually loaded and, if necessary, replace. 3. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Developer motor MCY and Motor control PWB (YC7) Motor control PWB (YC3) and Engine PWB (YC9) 4. If the wiring is disconnected, shorted or grounded, replace the wiring. 5. Replace the Developer motor MCY.
		Motor control PWB: Replace the Motor control PWB.
		Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
2201	Drum motor K steady-state error	Drum unit: 1. Execute U030 Belt Meand (transfer Motor) and check that the drum motor can rotate. 2. Confirm that the drum or the drum screw can rotate. 3. If it won’t rotate, replace the drum unit.
	After drum motor K is stabilized, the ready signal is at the H level for 5 s continuously.	Drum motor K: 1. To check the motor operation, execute U030 Belt Meand (transfer motor). 2. Check the drive gear can rotate or they are not unusually loaded and, if necessary, replace. 3. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Drum motor K and Motor control PWB (YC5) Motor control PWB (YC3) and Engine PWB (YC9) 4. If the wiring is disconnected, shorted or grounded, replace the wiring. 5. Replace the drum motor K.
		Motor control PWB: Replace the Motor control PWB.
		Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
2202	Drum motor C steady-state error	Drum unit: 1. Execute U030 Belt Meand (transfer Motor) and check that the drum motor can rotate. 2. Confirm that the drum or the drum screw can rotate. 3. If it won’t rotate, replace the drum unit.
	[45 ppm/55 ppm model] After drum motor C is stabilized, the ready signal is at the H level for 5 s continuously.	Drum motor C: 1. To check the motor operation, execute U030 Belt Meand (transfer motor) . 2. Check the drive gear can rotate or they are not unusually loaded and, if necessary, replace. 3. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Drum motor C and Motor control PWB (YC4) Motor control PWB (YC3) and Engine PWB (YC9) 4. If the wiring is disconnected, shorted or grounded, replace the wiring. 5. Replace the Drum motor C.
		Motor control PWB: Replace the Motor control PWB
		Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
2203	Drum motor MCY steadystate error	Drum unit: 1. Execute U030 Belt Meand (transfer Motor) and check that the drum motor can rotate . 2. Confirm that the drum or the drum screw can rotate. 3. If it won’t rotate, replace the drum unit.
	[30 ppm/35 ppm model] After drum motor MCY is stabilized, the ready signal is at the H level for 5 s continuously.	Drum motor MCY: 1. To check the motor operation, execute U030 Belt Meand (transfer motor) . 2. Check the drive gear can rotate or they are not unusually loaded and, if necessary, replace. 3. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Drum motor MCY and Motor control PWB (YC5) Motor control PWB (YC3) and Engine PWB (YC9) 4. If the wiring is disconnected, shorted or grounded, replace the wiring. 5. Replace the Drum motor MCY.
		Motor control PWB: Replace the Motor control PWB.
		Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
2203	Drum motor M steady-state error	Drum unit: 1. To check the motor operation, execute U030 Belt Meand (transfer motor). . 2. Decrease Vpp using U100. Change “set ac gain” of U100 from Auto to mode1. 3. Confirm that the drum or the drum screw can rotate. 4. If it won’t rotate, replace the drum unit.
	[45 ppm/55 ppm model] After drum motor M is stabilized, the ready signal is at the H level for 5 s continuously.	Drum motor M: 1. To check the motor operation, execute U030 Belt Meand (transfer motor) . 2. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. 3. Check the drive gear can rotate or they are not unusually loaded and, if necessary, replace. Drum motor M and Motor control PWB (YC5) Motor control PWB (YC3) and Engine PWB (YC9) 4. If the wiring is disconnected, shorted or grounded, replace the wiring. 5. Replace the Drum motor MCY.
		Motor control PWB: Replace the Motor control PWB.
		Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
2211	Drum motor K startup error	Drum unit: 1. To check the motor operation, execute U030 Belt Meand (transfer motor). . 2. Check the drive gear can rotate or they are not unusually loaded and, if necessary, replace. 3. Decrease Vpp using U100. Change “set ac gain” of U100 from Auto to mode1. 4. Confirm that the drum or the drum screw can rotate. 5. If it won’t rotate, replace the drum unit.
	Drum motor K is not stabilized within 5 s since the motor is activated.	Drum motor K: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Drum motor K and Motor control PWB (YC5) Motor control PWB (YC3) and Engine PWB (YC9) 2. If the wiring is disconnected, shorted or grounded, replace the wiring. 3. Replace the Drum motor K.
		Motor control PWB: Replace the Motor control PWB.
		Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
2212	Drum motor C startup error	Drum unit: 1. To check the motor operation, execute U030 Belt Meand (transfer motor). 2. Check the drive gear can rotate or they are not unusually loaded and, if necessary, replace. 3. Decrease Vpp using U100. Change “set ac gain” of U100 from Auto to mode1. 4. Confirm that the drum or the drum screw can rotate. 5. If it won’t rotate, replace the drum unit.
	[45 ppm/55 ppm model] Drum motor C is not stabilized within 5 s since the motor is activated.	Drum motor C: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Drum motor C and Motor control PWB (YC5) Motor control PWB (YC3) and Engine PWB (YC9) 2. If the wiring is disconnected, shorted or grounded, replace the wiring. 3. Replace the Drum motor C.
		Motor control PWB: Replace the Motor control PWB.
		Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB
2213	Drum motor MCY startup error	Drum unit: 1. To check the motor operation, execute U030 Belt Meand (transfer motor). . 2. Check the drive gear can rotate or they are not unusually loaded and, if necessary, replace. 3. Decrease Vpp using U100. Change “set ac gain” of U100 from Auto to mode1. 4. Confirm that the drum or the drum screw can rotate. 5. If it won’t rotate, replace the drum unit.
	[30 ppm/35 ppm model] Drum motor MCY is not stabilized within 5 s since the motor is activated.	Drum motor MCY: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Drum motor MCY and Motor control PWB (YC5) Motor control PWB (YC3) and Engine PWB (YC9) 2. If the wiring is disconnected, shorted or grounded, replace the wiring. 3. Replace the Drum motor MCY.
		Motor control PWB: Replace the Motor control PWB.
		Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
2213	Drum motor M startup error	Drum unit: 1. To check the motor operation, execute Belt Mean (transfer motor) by U030 motor operation check. 2. Check the drive gear can rotate or they are not unusually loaded and, if necessary, replace. 3. Decrease Vpp using U100. Change set ac gain of U100 from Auto to mode1. 4. Confirm that the drum or the drum screw can rotate. 5. If it won’t rotate, replace the drum unit.
	[45 ppm/55 ppm model] Drum motor M is not stabilized within 5 s since the motor is activated.	Drum motor M: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Drum motor M and Motor control PWB (YC5) Motor control PWB (YC3) and Engine PWB (YC9) 2. If the wiring is disconnected, shorted or grounded, replace the wiring. 3. Replace the Drum motor MCY.
		Motor control PWB: Replace the Motor control PWB.
		Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
2300	Fuser motor error	Fuser motor: 1. To check the motor operation, execute U030 Fuser (fuser motor). 2. Check the drive gear can rotate or they are not unusually loaded and, if necessary, replace. 3. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Fuser motor and Feed PWB 1(YC18) Feed PWB 1(YC1) and Engine PWB (YC6) 4. If the wiring is disconnected, shorted or grounded, replace the wiring. 5. Replace the fuser motor.
	After fuser motor is driven, the ready signal does not turn to L within 2 s. After fuser motor is stabilized, the ready signal is at the H level for 1 s continuously.	Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
		Feed PWB 1: Replace the Feed PWB 1.
		Fuser unit: Replace the fuser unit.
2500	Paper feed motor error	Paper feed motor: 1. To check the motor operation, execute U030 Feed (paper feed motor). 2. Check the paper feed roller and drive gear can rotate or they are not unusually loaded and, if necessary, replace. 3. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Paper feed motor and Feed PWB 2(YC2) Feed PWB 2(YC1) and Engine PWB (YC4) 4. If the wiring is disconnected, shorted or grounded, replace the wiring. 5. Replace the paper feed motor.
2500	After paper feed motor is driven, the ready signal does not turn to L within 2 s. After paper feed motor is stabilized, the ready signal is at the H level for 1 s continuously.	Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
2600	PF paper feed motor error (large capacity feeder)	PF paper feed motor: 1. To check the feed unit operation, execute U247 LCF- Motor ON . 2. Check the paper feed roller and drive gear can rotate or they are not unusually loaded and, if necessary, replace. 3. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. PF paper feed motor and PF main PWB (YC16) 4. If the wiring is disconnected, shorted or grounded, replace the wiring. 5. Replace the paper feed motor.
2600	After PF paper feed motor is driven, the ready signal does not turn to L within 2 s.	PF main PWB: Replace the PF main PWB
2610	PF paper feed motor error (paper feeder)	PF paper feed motor: 1. To check the feed unit operation, execute U247 2PF - Motor ON . 2. Check the paper feed roller and drive gear can rotate or they are not unusually loaded and, if necessary, replace. 3. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. PF paper feed motor and PF main PWB (YC16) 4. If the wiring is disconnected, shorted or grounded, replace the wiring. 5. Replace the paper feed motor.
2610	[45 ppm/55 ppm model] After PF paper feed motor is driven, the ready signal does not turn to L within 2 s.	PF main PWB: Replace the PF main PWB
2640	SD paper feed motor error (side deck)	SD paper feed motor: 1. To check the feed unit operation, execute U247 Side deck- Motor ON . 2. Check the paper feed roller and drive gear can rotate or they are not unusually loaded and, if necessary, replace. 3. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. SD paper feed motor and SD main PWB (YC16) 4. If the wiring is disconnected, shorted or grounded, replace the wiring. 5. Replace the SD paper feed motor.
2640	[45 ppm/55 ppm model] After SD paper feed motor is driven, the ready signal does not turn to L within 2 s.	SD main PWB: Replace the SD main PWB
2650	SM paper feed motor error (side multi tray)	SM paper feed motor: 1. To check the feed unit operation, execute U247 SMT- Motor ON. 2. Check the paper feed roller and drive gear can rotate or they are not unusually loaded and, if necessary, replace. 3. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. SM paper feed motor and SM main PWB (YC5) 4. If the wiring is disconnected, shorted or grounded, replace the wiring. 5. Replace the SM paper feed motor.
2650	[45 ppm/55 ppm model] After SM paper feed motor is driven, the ready signal does not turn to L within 2 s.	SM main PWB: Replace the SM main PWB
2660	PF paper feed motor error (side large capacity feeder)	PF paper feed motor: 1. To check the feed unit operation, execute U247 Side LCF - Motor ON. 2. Check the paper feed roller and drive gear can rotate or they are not unusually loaded and, if necessary, replace. 3. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. PF paper feed motor and PF main PWB (YC16) 4. If the wiring is disconnected, shorted or grounded, replace the wiring. 5. Replace the PF paper feed motor.
2660	[45 ppm/55 ppm model] After PF paper feed motor is driven, the ready signal does not turn to L within 2 s.	PF main PWB: Replace the PF main PWB
2670	PF paper feed motor error (side paper feeder)	PF paper feed motor: 1. Execute Side 2PF - Motor ON of U247 feed unit operation check. 2. Check the paper feed roller and drive gear can rotate or they are not unusually loaded and, if necessary, replace. 3. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. PF paper feed motor and PF main PWB (YC16) 4. If the wiring is disconnected, shorted or grounded, replace the wiring. 5. Replace the PF paper feed motor.
2670	[45 ppm/55 ppm model] After PF paper feed motor is driven, the ready signal does not turn to L within 2 s.	PF main PWB: Replace the PF main PWB
2700	3-color release motor error	Color release motor Color release sensor (Intermediate transfer belt unit): 1. To check the motor operation, execute U30 CMY Release. 2. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Intermediate transfer belt unit and Engine PWB (YC3) 3. If the wiring is disconnected, shorted or grounded, replace the wiring. 4. Replace the Intermediate transfer belt unit.
2700	When the color release motor is driven, the color release sensor does not turn on/off for 5 s.	Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
2730	Secondary transfer release motor error	Transfer release motor: 1. To check the motor operation, execute U030 Press Release. 2. Check for broken drive gears and replace if any. 3. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Transfer release motor and relay PWB (YC14) 4. If the wiring is disconnected, shorted or grounded, replace the wiring. 5. Replace the Transfer release motor.
	When the transfer release motor is driven, the transfer release sensor does not turn on/off for 5 s.	Transfer release sensor: 1. When abnormal noise is observed at the execution of Press Release of U030 motor operation check. 2. Check that the sensor and its mounting board are correctly positioned. 3. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. 4. Replace the Transfer release motor.
		Paper conveying unit: 1. The main-unit access drawer of the paper conveying unit has no foreign objects adhered or no distorted pins and, if necessary, repair. 2. Check the paper conveying unit is firmly closed. 3. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Relay PWB (YC1) and Feed PWB 1(YC14) 4. If the wiring is disconnected, shorted or grounded, replace the wiring. 5. Replace the paper conveying unit and execute U052.
		Feed PWB 1: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Feed PWB 1 (YC1) and Engine PWB (YC6) 2. Check that the IC on the feed circuit PWB1 is not damaged (by an overcurrent or foreign object) and, if necessary, replace.
		Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
2760	Transfer motor startup error	Transfer motor: 1. To check the motor operation, execute U030 Belt Meand. 2. Rotate the drive gear, the belt and the roller by the hand and check that they are not unusually loaded. 3. Clean the Intermediate transfer belt unit. 4. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Transfer motor and Feed PWB 1 (YC13) Feed PWB 1(YC2) and Engine PWB (YC5) 5. If the wiring is disconnected, shorted or grounded, replace the wiring. 6. Replace the Transfer motor.
	Transfer motor is not stabilized within 5 s since the motor is activated.	Feed PWB 1: Replace the Feed PWB 1.
		Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
2770	Intermediate transfer belt meandering correction error	Intermediate transfer belt unit: 1. Check that the Intermediate transfer belt unit has been properly installed so that the intermediate belt unit waste toner shutter won’t be derailed when the belt unit is strongly inserted. 2. Reinstall the intermediate transfer belt unit.(Insert slowly all the way in. 3. Run U468 Belt Position with B/W and confirm “ angle” (position of belt) is within the range (6 to 26). 4. Check that the main unit is placed perfectly horizontal. 5. Replace the intermediate transfer belt unit.
	If the intermediate transfer belt position detecting sensor has derived an incorrect value.	Transfer belt sensor (Intermediate transfer belt unit): 1. Clean the toner off of the sensor and its proximity using a blower. 2. Check the sensor actuator are correctly positioned.
		Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
2780	Intermediate transfer belt skew correction sensor error	Transfer belt skew sensor (Intermediate transfer belt unit): 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. intermediate transfer belt unit and Engine PWB (YC3) 1. Replace the intermediate transfer belt unit.
2780	An abnormal value is detected to transfer skew sensor.	Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB
2790	Intermediate transfer belt skew correction motor error	Transfer belt skew motor: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. intermediate transfer belt unit and Engine PWB (YC3) 2. If the wiring is disconnected, shorted or grounded, replace the wiring. 3. Replace the intermediate transfer belt unit.
2790	When the transfer skew motor is driven, timeouts (300 ms) were detected twice in a row.	Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB
2810	Inner waste toner motor error	Waste toner box: 1. Rotate the waste toner spiral by the hand and check that they are not unusually loaded. 2. If the spiral won’t rotate, replace the waste toner tank.
	Initialized when an error is constantly observed for 2 seconds after the inner waste tonner motor is activated. An error is detected twice for 2.5 seconds after rebooting. The lock detect signal won’t be H level three times in a row within 200 ms at 1.25 ms cycles after the inner waste tonner motor has been driven.	Waste toner motor: 1. Rotate the drive gear by the hand and check that they are not unusually loaded. 2. Clean the drive gears and the axle holder. 3. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Waste toner motor and Front PWB (YC16) Front PWB (YC3) and Engine PWB (YC7) 4. If the wiring is disconnected, shorted or grounded, replace the wiring. 5. Replace the waste toner motor.
		Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
2820	Intermediate transfer belt motor steady-state error	Transfer motor: 1. To check the motor operation, execute U030 Belt Meand. 2. Rotate the roller, driving gear by the hand and check that they are not unusually loaded. 3. Clean the intermediate transfer belt unit. 4. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Transfer motor and Feed PWB 1(YC13) Feed PWB 1(YC2) and Engine PWB (YC5) 5. If the wiring is disconnected, shorted or grounded, replace the wiring. 6. Replace the Transfer motor.
	After transfer motor is stabilized, the ready signal is at the H level for 5 s continuously. The counter value obtained by timer capture is lower than 2200 for 10 times in a row.	Feed PWB 1: Replace the Feed PWB 1.
		Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
2840	Intermediate transfer belt cleaning motor error	Transfer cleaning motor: 1. Rotate the roller and the drive gear by the hand and check that they are not unusually loaded. 2. Check if the waste toner is remaining inside the cleaning unit without being disposed of. 3. Clean inside the cleaning unit. 4. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Transfer cleaning motor and Engine PWB (YC3) 5. If the wiring is disconnected, shorted or grounded, replace the wiring. 6. Replace the transfer cleaning motor.
2840	After transfer cleaning motor is driven, the ready signal won’t be L lebel within 2 s. After transfer cleaning motor is stabilized, the ready signal is at the H level for 1 s continuously.	Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB
2850	Intermediate transferbelt sensor error	Transfer motor: 1. To check the motor operation, execute U030 Belt Meand. 2. Rotate the roller, driving gear by the hand and check that they are not unusually loaded. 3. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Transfer motor and Feed PWB 1(YC13) Feed PWB 1(YC1) and Engine PWB (YC6) 4. If the wiring is disconnected, shorted or grounded, replace the wiring. 5. Replace the Transfer motor.
	The signal is not received for 100 ms in succession.	Feed PWB 1: Replace the Feed PWB 1.
		Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
2860	Intermediate transfer belt sub sensor error	Transfer belt sensor: 1. To check the motor operation, execute U030 Belt Meand. 2. Check that the drive roller for the sensor pulse can be rotated. 3. Check that the sensor is correctly positioned. 4. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Transfer belt sensor and intermediate transfer belt unit and Engine PWB (YC3) 5. If the wiring is disconnected, shorted or grounded, replace the wiring. 6. Replace the intermediate transfer belt unit.
2860	The signal is not received for 100 ms in succession.	Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.

2950	Motor control PWB communication error	Motor control PWB: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Motor control PWB (YC3) and Engine PWB (YC9) 2. If the wiring is disconnected, shorted or grounded, replace the wiring. 3. Replace the Motor control PWB.
2950	A communication error from the motor control PWB is detected 10 times in succession.	Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
3100	Scanner carriage error	The scanner mirror frame is being locked after setup: Check whether the scanner mirror frame has been unlocked and unlock if necessary
	The home position is not correct when the power is turned on, at the end of a reading process of the table and document processor.	Scanner motor: 1. To check the scanner motor, execute U073 . 2. Move the scanner by the hand to check whether it is unusually difficult to move. 3. Check that the optical wire rope is not disengaged and engage the wire. 4. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Scanner motor and ISC PWB (YC5) ISC PWB (YC3) and Main PWB (YC11) 5. If the wiring is disconnected, shorted or grounded, replace the wiring. 6. Replace the scanner motor.
		Home position sensor: 1. Check that the sensor is correctly positioned. 2. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Home position sensor and ISC PWB (YC8) 3. Replace the home position sensor.
		ISC PWB: Replace the ISC PWB and execute U411
		Main PWB: Replace the main PWB
3210	CIS lamp error	CIS: 1. Execute U906 Separating Operation Release . 2. Execute CCD of U061 lamp check. 3. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. CIS and DPSHD PWB (YC2) DPSHD PWB (YC3) and DP relay PWB (YC2) 4. If the wiring is disconnected, shorted or grounded, replace the wiring. 5. Replace the CIS and execute U091 and U411.
	When input value at the time of CIS illumination does not exceed the threshold value between 5 s	DPSHD PWB: Replace the DPSHD PWB.
		DP relay PWB: Replace the DP relay PWB.
3220	CCD lamp activation error	CIS 1. Execute U906 Separating Operation Release. 2. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. LED lamp PWB and ISC PWB (YC6) CCD PWB (YC2) and ISC PWB (YC9) ISC PWB (YC3) and Main PWB (YC11) 3. If the wiring is disconnected, shorted or grounded, replace the wiring. 4. If the LED lamp won’t light, replace the LED PWB and execut U411.
	The threshold is calculated for colors at initialization and the pixel which does not exceed that value is greater than 1000.	ISC PWB: Replace the ISC PWB and execute U411.
		Main PWB: Replace the main PWB
3300	Optical system (AGC) error	LED lamp PWB: 1. To check the lamp, execute U061 CCD. 2. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. LED lamp PWB and ISC PWB (YC6) CCD PWB (YC2) and ISC PWB (YC9) ISC PWB (YC3) and Main PWB (YC11) 3. If the wiring is disconnected, shorted or grounded, replace the wiring. 4. If the LED lamp won’t light, replace the LED PWB and execut U411.
	One of the gains is FF or 0x89 during the CCD lamp AGC is being processed.	CCD PWB: Replace the ISU and execute U411
		ISC PWB: Replace the ISC PWB and execute U411.
		Main PWB: Replace the main PWB.
3310	CIS AGC error	CIS: 1. Execute U906 Separating Operation Release. 2. To check the lamp, execute U061 CCD. 3. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. DP CIS and DPSHD PWB (YC2) DPSHD PWB (YC3) and DP relay PWB (YC2) 4. If the wiring is disconnected, shorted or grounded, replace the wiring. 5. Replace the CIS and execute U091 and U411.
3310	After AGC, correct input is not obtained at CIS.	DPSHD PWB: Replace the DPSHD PWB.
3500	Communication error between scanner and ASIC	ISC PWB: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. ISC PWB (YC3) and Main PWB (YC11) 2. If the wiring is disconnected, shorted or grounded, replace the wiring. 3. Replace the ISC PWB and execute U411.
3500	An error code is detected.	Main PWB Replace the main PWB.
3600	Scanner sequence error	ISC PWB: 1. Execute U021 memory initializing. 2. Replace the ISC PWB and execute U411.
3700	Scanner device error	CCD (ISU): Since the ISU is mounted with a CCD of different type, install the ISU that matches with the model.
3800	AFE error	ISC PWB: 1. Confirm that the FCC wiring connector is not distorted and connect the FCC wiring all the way in. CCD PWB (YC2) and ISC PWB (YC9) 2. If the FCC wiring is disconnected, replace the FCC wiring. 3. Replace the ISC PWB and execute U411.
3800	When writing the data, read and write data does not match 3 times in succession. No response is received in 100 ms from AEF.	CCD PWB: Replace the ISU PWB and execute U411.
3900	Backup memory read/write error (ISC PWB)	Backup memory (ISC PWB): 1. Turn the main power switch off and after 5 seconds, turn it on. 2. Replace the ISC PWB and execute U411.
3900	Read and write data does not match.
4001	Polygon motor K synchronization error	Polygon motor K (LSU): 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Polygon motor K and LSU relay PWB (YC4) LSU relay PWB (YC3) and Engine PWB (YC12) 2. If the wiring is disconnected, shorted or grounded, replace the wiring. 3. Replace the laser scanner unit.
4001	After polygon motor K is driven, the ready signal does not turn to L within 30 s. The polygon motor speed won’t stabilize within 10 s.	Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
4002	Polygon motor C synchronization error	Polygon motor C (LSU): 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Polygon motor C and LSU relay PWB (YC9) LSU relay PWB (YC3) and Engine PWB (YC12) 2. If the wiring is disconnected, shorted or grounded, replace the wiring. 3. Replace the laser scanner unit.
4002	After polygon motor C is driven, the ready signal does not turn to L within 30 s. The polygon motor speed won’t stabilize within 10 s.	Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
4003	Polygon motor M synchronization error	Polygon motor M (LSU): 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Polygon motor M and LSU relay PWB (YC7) LSU relay PWB (YC3) and Engine PWB (YC12) 2. If the wiring is disconnected, shorted or grounded, replace the wiring. 3. Replace the laser scanner unit.
4003	After polygon motor M is driven, the ready signal does not turn to L within 30 s. The polygon motor speed won’t stabilize within 10 s.	Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
4004	Polygon motor Y synchronization error	Polygon motor Y (LSU): 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Polygon motor Y and LSU relay PWB (YC11) LSU relay PWB (YC3) and Engine PWB (YC12) 2. If the wiring is disconnected, shorted or grounded, replace the wiring. 3. Replace the laser scanner unit.
4004	After polygon motor Y is driven, the ready signal does not turn to L within 30 s. The polygon motor speed won’t stabilize within 10 s.	Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
4011	Polygon motor K steadystate error	Polygon motor K (LSU): 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Polygon motor K and LSU relay PWB (YC4) LSU relay PWB (YC3) and Engine PWB (YC12) 2. If the wiring is disconnected, shorted or grounded, replace the wiring. 3. Replace the laser scanner unit.
4011	After polygon motor K is stabilized, the ready signal is at the H level for 15 s continuously.	Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
4012	Polygon motor C steadystate error	Polygon motor C (LSU): 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Polygon motor C and LSU relay PWB (YC9) LSU relay PWB (YC3) and Engine PWB (YC12) 2. If the wiring is disconnected, shorted or grounded, replace the wiring. 3. Replace the laser scanner unit.
4012	After polygon motor C is stabilized, the ready signal is at the H level for 15 s continuously.	Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
4013	Polygon motor M steadystate error	Polygon motor M (LSU): 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Polygon motor M and LSU relay PWB (YC7) LSU relay PWB (YC3) and Engine PWB (YC12) 2. If the wiring is disconnected, shorted or grounded, replace the wiring. 3. Replace the laser scanner unit.
4013	After polygon motor M is stabilized, the ready signal is at the H level for 15 s continuously.	Engine PWB: Check the engine software and upgrade to the latest, if necessary. Replace the engine PWB
4014	Polygon motor Y steadystate error	Polygon motor Y (LSU): 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Polygon motor Y and LSU relay PWB (YC11) LSU relay PWB (YC3) and Engine PWB (YC12) 2. If the wiring is disconnected, shorted or grounded, replace the wiring. 3. Replace the laser scanner unit.
4014	After polygon motor Y is stabilized, the ready signal is at the H level for 15 s continuously.	Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
4101	BD initialization error K	PD PWB K (LSU): 1. Confirm that the FCC wiring connector is not distorted and connect the FCC wiring all the way in. Laser scanner unit and LSU relay PWB (YC5) LSU relay PWB (YC3) and Engine PWB (YC12) 2. If the FCC wiring is disconnected, replace the FCC wiring. 3. Replace the laser scanner unit.
4101	After polygon motor K is driven, the BD signal is not detected for 1 s.	Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
4102	BD initialization error C	PD PWB C (LSU): 1. Confirm that the FCC wiring connector is not distorted and connect the FCC wiring all the way in. Laser scanner unit and LSU relay PWB (YC10) LSU relay PWB (YC3) and Engine PWB (YC12) 2. If the FCC wiring is disconnected, replace the FCC wiring. 3. Replace the laser scanner unit.
4102	After polygon motor C is driven, the BD signal is not detected for 1 s.	Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB
4103	BD initialization error M	PD PWB M (LSU): 1. Confirm that the FCC wiring connector is not distorted and connect the FCC wiring all the way in. Laser scanner unit and LSU relay PWB (YC8) LSU relay PWB (YC3) and Engine PWB (YC12) 2. If the FCC wiring is disconnected, replace the FCC wiring. 3. Replace the laser scanner unit.
4103	After polygon motor M is driven, the BD signal is not detected for 1 s.	Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
4104	BD initialization error Y	PD PWB Y (LSU): 1. Confirm that the FCC wiring connector is not distorted and connect the FCC wiring all the way in. Laser scanner unit and LSU relay PWB (YC12) LSU relay PWB (YC3) and Engine PWB (YC12) 2. If the FCC wiring is disconnected, replace the FCC wiring. 3. Replace the laser scanner unit.
4104	After polygon motor Y is driven, the BD signal is not detected for 1 s.	Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
4201	BD steady-state error K	PD PWB K (LSU): 1. Confirm that the FCC wiring connector is not distorted and connect the FCC wiring all the way in. Laser scanner unit and LSU relay PWB (YC5) LSU relay PWB (YC3) and Engine PWB (YC12) 2. If the FCC wiring is disconnected, shorted or grounded, replace the FCC wiring. 3. Replace the laser scanner unit. Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB
4201	The BD signal is not detected.
4202	BD steady-state error C	PD PWB C (LSU): 1. Confirm that the FCC wiring connector is not distorted and connect the FCC wiring all the way in. Laser scanner unit and LSU relay PWB (YC10) LSU relay PWB (YC3) and Engine PWB (YC12) 2. If the FCC wiring is disconnected, replace the FCC wiring. 3. Replace the laser scanner unit.
4202	The BD signal is not detected.	Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
4203	BD steady-state error M	PD PWB M (LSU): 1. Confirm that the FCC wiring connector is not distorted and connect the FCC wiring all the way in. Laser scanner unit and LSU relay PWB (YC8) LSU relay PWB (YC3) and Engine PWB (YC12) 2. If the FCC wiring is disconnected, replace the FCC wiring. 3. Replace the laser scanner unit.
4203	The BD signal is not detected.	Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
4204	BD steady-state error Y	PD PWB Y (LSU): 1. Confirm that the FCC wiring connector is not distorted and connect the FCC wiring all the way in. Laser scanner unit and LSU relay PWB (YC12) LSU relay PWB (YC3) and Engine PWB (YC12) 2. If the FCC wiring is disconnected, replace the FCC wiring. 3. Replace the laser scanner unit.
4204	The BD signal is not detected.	Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB
4300	Polygon motor phase error	Laser scanner unit: Replace the laser scanner unit.
4300	ASIC won’t settle in completion of phase adjustment for 2 s after a BD signal is detected.	Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB
4600	LSU cleaning motor error	LSU cleaning motoror: 1. Execute LSU cleaning using Adjustment/Maintenance of the system menu. 2. Rotate the drive gear and the cleaning spiral by the hand and check that they are not unusually loaded, and replace if it is damaged. 3. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. LSU cleaning motor and Engine PWB (YC21) 4. If the wiring is disconnected, shorted or grounded, replace the wiring. 5. Replace the LSU cleaning motor.
4600	After LSU cleaning motor is driven, the ready signal does not turn to L within 2 s. After LSU cleaning motor is stabilized, the ready signal is at the H level for 1 s continuously.	Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
5101	Main high-voltage error K	Drum unit: 1. Execute U030 Belt Mean Drum Motor and check that the drum motor can rotate. 2. Confirm that the drum or the drum screw can rotate. 3. Check that the discharger lamp is properly connected. 4. If it won’t rotate, replace the drum unit.
	Measure the inflowing current when Vpp is varied in 3 steps and verify if the difference of the currents of 0 and step 2 is less than 42 (51 if lower highvoltage board).	Charger roller unit: 1. Check that the high-voltage contacts are not distorted or adhered with foreign objects. 2. Reinstall the chrager roller unit.Or, replace the charger roller unit.
		High voltage PWB 1: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. High voltage PWB 1(YC4)1,(YC3)2 and Engine PWB (YC17) 2. If the wiring is disconnected, shorted or grounded, replace the wiring. 3. Replace the High voltage PWB 1. 1:45 ppm model/ 55ppm model 2:30ppm model/ 35ppm model
		Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
5102	Main high-voltage error C	Drum unit: 1. Execute U030 Belt Mean Drum Motor and check that the drum motor can rotate. 2. Confirm that the drum or the drum screw can rotate. 3. Check that the discharger lamp is properly connected. 4. If it won’t rotate, replace the drum unit.
	Measure the inflowing current when Vpp is varied in 3 steps and verify if the difference of the currents of 0 and step 2 is less than 42 (51 if lower highvoltage board).	Charger roller unit: 1. Check that the high-voltage contacts are not distorted or adhered with foreign objects. 2. Reinstall the chrager roller unit.Or, replace the charger roller unit.
		High voltage PWB 1: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. High voltage PWB 1(YC2) and Engine PWB (YC16) 2. If the wiring is disconnected, shorted or grounded, replace the wiring. 3. Replace the High voltage PWB 1.
		Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
5103	Main high-voltage error M	Drum unit: 1. Execute U030 Belt Mean Drum Motor and check that the drum motor can rotate. 2. Confirm that the drum or the drum screw can rotate. 3. Check that the discharger lamp is properly connected. 4. If it won’t rotate, replace the drum unit.
	Measure the inflowing current when Vpp is varied in 3 steps and verify if the difference of the currents of 0 and step 2 is less than 42 (51 if lower highvoltage board).	Charger roller unit: 1. Check that the high-voltage contacts are not distorted or adhered with foreign objects. 2. Reinstall the chrager roller unit.Or, replace the charger roller unit.
		High voltage PWB 1: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. High voltage PWB 1(YC3) and Engine PWB (YC17) 2. If the wiring is disconnected, shorted or grounded, replace the wiring. 3. Replace the High voltage PWB 1.
		Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
5104	Main high-voltage error Y	Drum unit: 1. Execute U030 Belt Mean Drum Motor and check that the drum motor can rotate. 2. Confirm that the drum or the drum screw can rotate. 3. Check that the discharger lamp is properly connected. 4. If it won’t rotate, replace the drum unit.
	Measure the inflowing current when Vpp is varied in 3 steps and verify if the difference of the currents of 0 and step 2 is less than 42 (51 if lower highvoltage board).	Charger roller unit: 1. Check that the high-voltage contacts are not distorted or adhered with foreign objects. 2. Reinstall the chrager roller unit.Or, replace the charger roller unit.
		High voltage PWB 1: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. High voltage PWB 1(YC1) and Engine PWB (YC16) 2. If the wiring is disconnected, shorted or grounded, replace the wiring. 3. Replace the High voltage PWB 1.
		Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
6000	Broken fuser heater wire	Fuser unit: 1. Check that no paper jam is present. 2. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Fuser unit and Engine PWB (YC26) 3. If the wiring is disconnected, shorted or grounded, replace the wiring. 4. Replace the Fuser unit and execute U167 counter clear. (Deteriorated sensitivity due to the toner adhered to the center thermistor.)
	Fuser thermistor 1 does not reach 100° C/212 °F even after 60 s during warming up. The detected temperature of fuser thermistor 1 does not reach the specified temperature (ready indication temperature) for 420 s in warming up after reached to 100° C/212 °F.	Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
		Fuser IH PWB: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Fuser IH PWB(YC4) and Engine PWB (YC26) 2. Replace the fuser IH PWB.
		Fuser IH unit: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Fuser IH unit and Fuser IH PWB (YC9 and 10) 2. If the wiring is disconnected, shorted or grounded, replace the wiring. 3. Replace the fuser IH unit.
6020	Abnormally high fuser Center thermistor 1 temperature	Fuser unit: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Fuser unit and Engine PWB (YC26) 2. If the wiring is disconnected, shorted or grounded, replace the wiring. 3. Replace the Fuser unit.
6020	Fuser center thermistor 1 detects a temperature higher than 240°C/464°F for 1 s.	Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
6030	Broken fuser center thermistor 1 wire	Fuser unit: 1. Check that no paper jam is present. 2. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Fuser unit and Engine PWB (YC26) 3. If the wiring is disconnected, shorted or grounded, replace the wiring. 4. Replace the Fuser unit and execute U167 counter clear. (Deteriorated sensitivity due to the toner adhered to the center thermistor.)
	Input from fuser center thermistor 1 is 1010 or more (A/D value) continuously for 1 s. Verify if A/D read in the differential output won’t change by 4 or more when it was turned on for 10 seconds.	Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
		Fuser IH PWB: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Fuser IH PWB(YC4) and Engine PWB (YC26) 2. Replace the Fuser IH PWB.
		Fuser IH unit: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Fuser IH unit and Fuser IH PWB (YC9 and 10) 2. If the wiring is disconnected, shorted or grounded, replace the wiring. 3. Replace the fuser IH unit.
6040	Fuser heater error	Fuser unit: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Fuser unit and Engine PWB (YC26) 2. If the wiring is disconnected, shorted or grounded, replace the wiring. 3. Replace the Fuser unit and execute U167 counter clear.
	Input from fuser thermistor 1 is abnormal value continuously for 1 s.	Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
		Fuser IH PWB: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Fuser IH PWB (YC4) and Engine PWB (YC26) 2. Replace the fuser IH PWB.
6050	Abnormally low fuser center thermistor 1 temperature	Power source: 1. Check that the operating voltage falls within +/-10%. 2. Check no voltage drop is caused. The heater is deactivated at 70V or lower. 3. Relocate the AC outlet that supplies power.
	Fuser center thermistor 1 detects a temperature lower than 100°C/212°F for 1 s after warming up, during ready or during print. The temperature of thermistor 1 is detected to be less than 70°C/158°F for more than one second during lowpower mode.	Fuser unit: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Fuser unit and Engine PWB (YC26) 2. If the wiring is disconnected, shorted or grounded, replace the wiring. 3. Replace the Fuser unit and execute U167 counter clear.
		Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
		Fuser IH PWB: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Fuser IH PWB(YC4) and Engine PWB (YC26) 2. Replace the Fuser IH PWB.
		Fuser IH unit: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Fuser IH unit and Fuser IH PWB (YC9 and 10) Fuser IH PWB( YC4) and Engine PWB (YC26) 2. If the wiring is disconnected, shorted or grounded, replace the wiring. 3. Replace the fuser IH unit.
6120	Abnormally high fuser press thermistor 4 temperature	Fuser unit: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Fuser unit and Engine PWB (YC26) 2. If the wiring is disconnected, shorted or grounded, replace the wiring. 3. Replace the Fuser unit and execute U167 counter clear.
6120	Fuser press thermistor 4 detects a temperature higher than 190°C/374°F for 1 s.	Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
6130	Broken fuser press thermistor 4 wire	Fuser unit: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Fuser unit and Engine PWB (YC26) Fuser IH PWB(YC4) 2. If the wiring is disconnected, shorted or grounded, replace the wiring. 3. Replace the Fuser unit and execute U167 counter clear.
	Input from fuser press thermistor 4 is 992 or more (A/D value) continuously for 60 s.	Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
		Fuser IH PWB: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Fuser IH PWB(YC4) and Engine PWB (YC26) 2. Replace the fuser IH PWB.
		Fuser IH unit: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Fuser IH unit and Fuser IH PWB (YC9 and 10) 2. If the wiring is disconnected, shorted or grounded, replace the wiring. 3. Replace the fuser IH unit.
6150	Abnormally low fuser press thermistor 4 temperature Fuser press thermistor 4 detects a temperature lower than 30°C/86°F for 1 s after warming up.	Fuser unit: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Fuser unit and Engine PWB (YC26) If the wiring is disconnected, shorted or grounded, replace the wiring. 2. Replace the Fuser unit and execute U167 counter clear.
		Engine PWB 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
		Fuser IH PWB: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Fuser IH PWB( YC4) and Engine PWB (YC26) 2. Replace the fuser IH PWB.
		Fuser IH unit: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Fuser IH unit and Fuser IH PWB (YC9 and 10) 2. If the wiring is disconnected, shorted or grounded, replace the wiring. 3. Replace the fuser IH unit.
6200	Broken fuser edge heater wire	Fuser unit: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Fuser unit and Engine PWB (YC26) 2. If the wiring is disconnected, shorted or grounded, replace the wiring. 3. Replace the Fuser unit and execute U167 counter clear.
	Fuser edge thermistor 2 does not reach 100° C/212 °F even after 60 s during warming up. The detected temperature of fuser edge thermistor 2 does not reach the specified temperature (ready indication temperature) for 420 s in warming up after reached to 100° C/212 °F.	Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
		Fuser IH PWB: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Fuser IH PWB( YC4) and Engine PWB (YC26) 2. Replace the fuser IH PWB.
		Fuser IH unit: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Fuser IH unit and Fuser IH PWB (YC9 and 10) 2. If the wiring is disconnected, shorted or grounded, replace the wiring. 3. Replace the fuser IH unit.
6220	Abnormally high fuser edge thermistor 2 temperature	Fuser unit: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Fuser unit and Engine PWB (YC26) 2. If the wiring is disconnected, shorted or grounded, replace the wiring. 3. Replace the Fuser unit and execute U167 counter clear.
	Fuser edge thermistor 2 detects a temperature higher than 245°C/473°F for 1 s.	Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
		Fuser IH unit: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Fuser IH unit and Fuser IH PWB (YC9 and 10) 2. If the wiring is disconnected, shorted or grounded, replace the wiring. 3. Replace the fuser IH unit.
6230	Broken fuser edge thermistor 2 wire	Fuser unit: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Fuser unit and Engine PWB (YC26) 2. If the wiring is disconnected, shorted or grounded, replace the wiring. 3. Replace the Fuser unit and execute U167 counter clear.
	The Input signal from the fuser edge thermistor 2 is 992 or more (A/D value) continuously for 1 s when the temperature at the fuser edge thermistor 1 is higher than 100°C/212°F during warming up.	Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
		Fuser IH PWB: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Fuser IH PWB( YC4) and Engine PWB (YC26) 2. Replace the fuser IH PWB.
		Fuser IH unit: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Fuser IH unit and Fuser IH PWB (YC9 and 10) Fuser IH PWB( YC4) and Engine PWB (YC26) 2. If the wiring is disconnected, shorted or grounded, replace the wiring. 3. Replace the fuser IH unit.
6250	Abnormally low fuser edge thermistor 2 temperature	Fuser unit: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Fuser unit and Engine PWB (YC26) 2. If the wiring is disconnected, shorted or grounded, replace the wiring. 3. Replace the Fuser unit and execute U167 counter clear.
	Fuser edge thermistor 2 detects a temperature lower than 100°C/212°F for 1 s during ready or print. Fuser edge thermistor 2 detects a temperature lower than 50°C/122°F for 1 s during low power mode.	Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
		Fuser IH PWB: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Fuser IH PWB( YC4) and Engine PWB (YC26) 2. Replace the fuser IH PWB.
		Fuser IH unit: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Fuser IH unit and Fuser IH PWB (YC9 and 10) Fuser IH PWB( YC4) and Engine PWB (YC26) 2. If the wiring is disconnected, shorted or grounded, replace the wiring. 3. Replace the fuser IH unit.
		Fuser unit: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Fuser unit and Engine PWB (YC26) 2. If the wiring is disconnected, shorted or grounded, replace the wiring. 3. Replace the Fuser unit and execute U167 counter clear.
6320	Abnormally high fuser middle thermistor 3 temperature	Fuser unit: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Fuser unit and Engine PWB (YC26) 2. If the wiring is disconnected, shorted or grounded, replace the wiring. 3. Replace the Fuser unit and execute U167 counter clear.
6320	Fuser middle thermistor 3 detects a temperature higher than 205°C/401°F for 1 s.	Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
6330	Broken fuser center thermistor 3 wire	Fuser unit: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Fuser unit and Engine PWB (YC26) 2. If the wiring is disconnected, shorted or grounded, replace the wiring. 3. Replace the Fuser unit and execute U167 counter clear.
	Fuser center thermistor 3 detects a temperature lower than 20°C/68°F continuously for 1 s.	Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
		Fuser IH PWB: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Fuser IH PWB(YC4) and Engine PWB (YC26) 2. Replace the fuser IH PWB.
6600	Fuser belt rotation error	Fuser motor: 1. To check the motor operation, execute U030 Fuser. 2. Check that the drive gear can rotate and not heavily loaded and, if necessary, apply grease to the axle holder and gears. 3. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Fuser motor and Feed PWB (YC18) and Engine PWB (YC6) 4. If the wiring is disconnected, shorted or grounded, replace the wiring. 5. Replace the fuser motor.
	A belt rotating pulse is not received for 1 s. (Engine CPU)	Fuser belt sensor: 1. Check that the sensor is correctly positioned. 2. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Fuser unit and Engine PWB (YC26) 3. If the wiring is disconnected, shorted or grounded, replace the wiring. 4. Replace the fuser unit and execute U167 counter clear.
		Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
6610	Fuser release sensor error	Fuser release motor: 1. To check the motor operation, execute U030 Fuser Release. 2. Check that the drive gear can be rotated and the separation is possible. 3. If the motor won’t rotate, confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Fuser unit and Engine PWB (YC26) 4. If the wiring is disconnected, shorted or grounded, replace the wiring. 5. Replace the fuser unit and execute U167 counter clear.
	The fusing pressure release sensor won’t send an off signal in 5 seconds since a pressure release instruction is given for the fusing pressure motor. The fusing pressure release sensor won’t send an on signal in 5 seconds since a pressure instruction is given for the fusing pressure motor.	Fuser release sensor: 1. Check that the sensor is correctly positioned. 2. Check that the sensor is not contaminated or damaged.
		Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
6710	Fuser IH PWB CPU reset error	Fuser IH PWB: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Fuser IH PWB( YC4) and Engine PWB (YC26) 2. If the wiring is disconnected, shorted or grounded, replace the wiring. 3. Replace the fuser IH PWB.
6710	Watch doc timer has been overflowed.	Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
6720	Fuser IH belt rotation error	Fuser motor: 1. To check the motor operation, execute U030 Fuser. 2. Check that the drive gear can rotate and not heavily loaded and, if necessary, apply grease to the axle holder and gears. 3. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Fuser motor and Feed PWB (YC18) and Engine PWB (YC6) 4. If the wiring is disconnected, shorted or grounded, replace the wiring. 5. Replace the fuser motor.
	While driving, the pulse count is less than 3 for 2 seconds during the input to the rotation pulse signal is 200 msec.	Fuser belt sensor: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Fuser unit and Engine PWB (YC26) 2. If the wiring is disconnected, shorted or grounded, replace the wiring. 3. Replace the fuser unit and execute U167 counter clear.
		Fuser IH PWB: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Fuser IH PWB(YC4) and Engine PWB (YC26) 2. Replace the fuser IH PWB.
		Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
6730	Abnormally high fuser IH PWB temperature 1 (IGBT1)	Fuser IH PWB: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Fuser IH PWB( YC4) and Engine PWB (YC26) 2. If the wiring is disconnected, shorted or grounded, replace the wiring. 3. Replace the fuser IH PWB.
6730	The input detect temperature is higher than 115°C/221 °F.	Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
6740	Abnormally high fuser IH PWB temperature 2 (IGBT2)	Fuser IH PWB: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Fuser IH PWB( YC4) and Engine PWB (YC26) 2. If the wiring is disconnected, shorted or grounded, replace the wiring. 3. Replace the fuser IH PWB.
6740	The input detect temperature is higher than 115°C/221 °F.	Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
6750	Fuser IH output over-current error	Fuser IH PWB: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Fuser IH PWB( YC4) and Engine PWB (YC26) 2. If the wiring is disconnected, shorted or grounded, replace the wiring. 3. Replace the fuser IH PWB.
	The output current of IH CPU is higher than 90A for 10 ms in succession.	Fuser IH unit: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Fuser IH unit and Fuser IH PWB (YC9 and 10) Fuser IH PWB( YC4) and Engine PWB (YC26) 2. If the wiring is disconnected, shorted or grounded, replace the wiring. 3. Replace the fuser IH unit.
		Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
6760	Fuser IH input over-current error	Fuser IH PWB: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Fuser IH PWB( YC4) and Engine PWB (YC26) 2. If the wiring is disconnected, shorted or grounded, replace the wiring. 3. Replace the fuser IH PWB.
6760	The input current of IH CPU is higher than 20A(100V/120V), 10A(200V) for 100 ms in succession.	Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
6770	Fuser IH low electric power error	Fuser unit: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Fuser unit and Fuser IH PWB (YC6) 2. If the wiring is disconnected, shorted or grounded, replace the wiring. 3. Replace the Fuser IH unit.
	Less than 0.6 times of the preset power is detected for 120 ms in succession after the IH heater remote has turned on.	Fuser IH PWB: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Fuser IH PWB( YC4) and Engine PWB (YC26) 2. If the wiring is disconnected, shorted or grounded, replace the wiring. 3. Replace the Fuser IH PWB.
		Fuser IH unit: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Fuser IH unit and Fuser IH PWB (YC9 and 10) Fuser IH PWB( YC4) and Engine PWB (YC26) 2. If the wiring is disconnected, shorted or grounded, replace the wiring. 3. Replace the fuser IH unit.
		Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
6900	Fuser belt cooling fan error	Fuser edge fan motor 1, 2: 1. To check the fan motor operation, execute U037 Fuser Edge. 2. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Fuser edge fan motor 1 and Engine PWB (YC26) Fuser edge fan motor 2 and Fuser PWB (YC2) Fuser PWB (YC1) and Engine PWB (YC26) 3. If the wiring is disconnected, shorted or grounded, replace the wiring. 4. Replace the fuser unit and execute U167 counter clear.
6900	When the fuser edge fan motor 1 , 2 is driven, alarm signal is detected for 5 s continuously.	Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
6910	Engine software ready error	Engine PWB: 1. Turn the main power switch off and after 5 seconds, turn it on. 2. Reinstall the engine software. 3. Replace the engine PWB.
6910	The device won’t engage in ready state in 60 minutes after warming-up has began. (A previous timeout process has not been cancelled.)
6920	Fuser front fan motor error	Fuser front fan motor: 1. To check the fan motor operation, execute U037 IH Coil. 2. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Fuser front fan motor and Front PWB (YC4) Front PWB (YC3) and Engine PWB (YC7) 3. If the wiring is disconnected, shorted or grounded, replace the wiring. 4. Replace the fuser front fan motor.
6920	When the fuser front fan motor is driven, alarm signal is detected for 5 s continuously.	Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
6930	Fuser rear fan motor error	Fuser rear fan motor: 1. To check the fan motor operation, execute U037 Fuser Coling. 2. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Fuser rear fan motor and Engine PWB (YC26) 3. If the wiring is disconnected, shorted or grounded, replace the wiring. 4. Replace the fuser rear fan motor.
6930	When the fuser rear fan motor is driven, alarm signal is detected for 5 s continuously.	Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.

6940	IH PWB cooling fan motor error	IH fan motor: 1. To check the fan motor operation, execute U037 IH Pwb. 2. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. IH fan motor and Feed PWB 1(YC11) Feed PWB 1(YC2) and Engine PWB (YC5) 3. If the wiring is disconnected, shorted or grounded, replace the wiring. 4. Replace the IH fan motor.
	When the IH fan motor is driven, the alarm signal is detected for 5 s continuously.	Feed PWB 1: Replace the Feed PWB1.
		Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB
6950	Fuser IH PWB communication error	Power source PWB: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Power source PWB (YC9) and Feed PWB 1(YC4) Power source PWB (YC3) and Fuser IH PWB (YC1) 2. If the wiring is disconnected, shorted or grounded, replace the wiring. 3. If the +24V output is not given by the power source PWB (YC9), replace the power source PWB.
	No response is received in 30 ms since a command is sent to IHCPU. A checksum error is detected 10 times in succession.	Feed PWB: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Power source PWB (YC3) and Fuser IH PWB (YC1) 2. If the wiring is disconnected, shorted or grounded, replace the wiring. 3. If the +24V output is not given by the feed PWB1 (YC27), replace the feed PWB1.
		Fuser IH PWB: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Fuser IH PWB(YC4) and Engine PWB (YC26) 2. If the wiring is disconnected, shorted or grounded, replace the wiring. 3. Replace the Fuser IH PWB.
		Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
6960	Current PWB error	Current PWB: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Current PWB(YC17) and Feed PWB2 (YC13) 2. If the wiring is disconnected, shorted or grounded, replace the wiring. 3. Replace the Current PWB.
6960	The power current is greater than 1A for 5 seconds continuously despite that 500W was indicated as the fuser power during power-up. (45 ppm/ 55 ppm model only)
6990	Fuser power supply incompatibility	Differences in settings after initialization: When this has happened after initialization using U021, make settings identical with the voltages on the IH PWB using U169.
	Information won’t match between the engine backup and the fuser IH PWB.	Fuser IH PWB: Replace with a fuser IH PWB specifically designed with the standard voltage.
		Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
7001	Toner motor K error	Toner container K: 1. Check that the spiral screw of the toner container can be rotated by the hand. 2. Check for broken gears and replace if any.
	A state that the pulse is not detected at the pulse sensor for 200 ms has occurred more than 15 times in a row during the toner motor K is driven. A state that the TMOT_LOCK signal becomes H (locked) is detected after 200 ms when the toner motor K is driven has occurred 15 sets in total.	Toner motor K: 1. Draw out the toner container and execute U135 to check the toner motor operation . 2. Check the drive gear can rotate or they are not unusually loaded and, if necessary, replace. 3. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Toner motor K and Engine PWB (YC27) 4. If the wiring is disconnected, shorted or grounded, replace the wiring. 5. Replace the Toner motor K.
		Screw sensor K: 1. Check that the sensor is correctly positioned. 2. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Screw sensor K and Engine PWB (YC27) 3. Replace the screw sensor K.
		Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
7002	Toner motor C error	Toner container C: 1. Check that the spiral screw of the toner container can be rotated by the hand. 2. Check for broken gears and replace if any.
	A state that the pulse is not detected at the pulse sensor for 200 ms has occurred more than 15 times in a row during the toner motor C is driven. A state that the TMOT_LOCK signal becomes H (locked) is detected after 200 ms when the toner motor C is driven has occurred 15 sets in total.	Toner motor C: 1. Draw out the toner container and execute U135 to check the toner motor operation . 2. Check the drive gear can rotate or they are not unusually loaded and, if necessary, replace. 3. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Toner motor C and Engine PWB (YC27) 4. If the wiring is disconnected, shorted or grounded, replace the wiring. 5. Replace the Toner motor C.
		Screw sensor C: 1. Check that the sensor is correctly positioned. 2. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Screw sensor C and Engine PWB (YC27) 3. Replace the screw sensor C.
		Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB
7003	Toner motor M error	Toner container M: 1. Check that the spiral screw of the toner container can be rotated by the hand. 2. Check for broken gears and replace if any.
	A state that the pulse is not detected at the pulse sensor for 200 ms has occurred more than 15 times in a row during the toner motor M is driven. A state that the TMOT_LOCK signal becomes H (locked) is detected after 200 ms when the toner motor M is driven has occurred 15 sets in total.	Toner motor M: 1. Draw out the toner container and execute U135 to check the toner motor operation . 2. Check the drive gear can rotate or they are not unusually loaded and, if necessary, replace. 3. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Toner motor M and Engine PWB (YC27) 4. If the wiring is disconnected, shorted or grounded, replace the wiring. 5. Replace the Toner motor M.
		Screw sensor M: 1. Check that the sensor is correctly positioned. 2. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Screw sensorM and Engine PWB (YC27) 3. Replace the screw sensor M.
		Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
7004	Toner motor Y error	Toner container Y: 1. Check that the spiral screw of the toner container can be rotated by the hand. 1. Check for broken gears and replace if any.
	A state that the pulse is not detected at the pulse sensor for 200 ms has occurred more than 15 times in a row during the toner motor Y is driven. A state that the TMOT_LOCK signal becomes H (locked) is detected after 200 ms when the toner motor Y is driven has occurred 15 sets in total.	Toner motor Y: 1. Draw out the toner container and execute U135 to check the toner motor operation . 2. Check the drive gear can rotate or they are not unusually loaded and, if necessary, replace. 3. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Toner motor Y and Engine PWB (YC27) 4. If the wiring is disconnected, shorted or grounded, replace the wiring. 5. Replace the Toner motor Y.
		Screw sensor Y: 1. Check that the sensor is correctly positioned. 2. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Screw sensor Y and Engine PWB (YC27) 3. Replace the screw sensor Y.
		Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
7101	Toner sensor K error	Failure of locking the developer waste slot at setup:
	Sensor output value of 60 or less or 944 or more continued for 3 s.	If an abnormal noise is heard, check that the developer ejection outlet is released and, if not, release the outlet.
		Toner sensor K: 1. Check the toner sensor output by U155. 2. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Toner sensor K and Front PWB (YC9) Front PWB (YC2) and Engine PWB (YC10) 3. If the wiring is disconnected, shorted or grounded, replace the wiring. 4. Check that the gears of the developer unit K are not damaged and the spiral can rotate. 5. Replace the Developer unit K.
		Toner motor K: 1. Draw out the toner container and execute U135 to check the toner motor operation. 2. Check the drive gear can rotate or they are not unusually loaded and, if necessary, replace. 3. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Toner motor K and Engine PWB (YC27) 4. If the wiring is disconnected, shorted or grounded, replace the wiring. 5. Replace the Toner motor K.
		Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
7102	Toner sensor C error Sensor output value of 60 or less or 944 or more continued for 3 s.	Failure of locking the developer waste slot at setup:
		If an abnormal noise is heard, check that the developer ejection outlet is released and, if not, release the outlet.
		Toner sensor C: 1. Check the toner sensor output by U155. 2. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Toner sensor C and Front PWB (YC13) Front PWB (YC2) and Engine PWB (YC10) 3. If the wiring is disconnected, shorted or grounded, replace the wiring. 4. Check that the gears of the developer unit C are not damaged and the spiral can rotate. 5. Replace the Developer unit C.
		Toner motor C: 1. Draw out the toner container and execute U135 to check the toner motor operation. 2. Check the drive gear can rotate or they are not unusually loaded and, if necessary, replace. 3. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Toner motor C and Engine PWB (YC27) 4. If the wiring is disconnected, shorted or grounded, replace the wiring. 5. Replace the Toner motor C.
		Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
7103	Toner sensor M error	Failure of locking the developer waste slot at setup:
	Sensor output value of 60 or less or 944 or more continued for 3 s.	If an abnormal noise is heard, check that the developer ejection outlet is released and, if not, release the outlet.
		Toner sensor M: 1. Check the toner sensor output by U155. 2. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Toner sensor M and Front PWB (YC11) Front PWB (YC2) and Engine PWB (YC10) 3. If the wiring is disconnected, shorted or grounded, replace the wiring. 4. Check that the gears of the developer unit M are not damaged and the spiral can rotate. 5. Replace the Developer unit M.
		Toner motor M: 1. Draw out the toner container and execute U135 to check the toner motor operation. 2. Check the drive gear can rotate or they are not unusually loaded and, if necessary, replace. 3. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Toner motor M and ?Engine PWB (YC27) 4. If the wiring is disconnected, shorted or grounded, replace the wiring. 5. Replace the Toner motor M.
		Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
7104	Toner sensor Y error	Failure of locking the developer waste slot at setup:
	Sensor output value of 60 or less or 944 or more continued for 3 s.	If an abnormal noise is heard, check that the developer ejection outlet is released and, if not, release the outlet.
		Toner sensor Y: 1. Check the toner sensor output by U155. 2. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Toner sensor Y and Front PWB (YC15) Front PWB (YC2) and Engine PWB (YC10) 3. If the wiring is disconnected, shorted or grounded, replace the wiring. 4. Check that the gears of the developer unit Y are not damaged and the spiral can rotate. 5. Replace the Developer unit Y.
		Toner motor Y: 1. Draw out the toner container and execute U135 to check the toner motor operation. 2. Check the drive gear can rotate or they are not unusually loaded and, if necessary, replace. 3. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Toner motor Y and Engine PWB (YC27) 4. If the wiring is disconnected, shorted or grounded, replace the wiring. 5. Replace the Toner motor Y.
		Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
7200	Broken outer temperature sensor 2 wire	Outer temperature sensor 2:
	The sensor input sampling is greater than 230.	1. Confirm Ext/Int is displayed by U139 temperature and humidity. 2. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Outer temperature sensor 2 and Front PWB (YC19) Front PWB (YC2) and Engine PWB (YC10) 3. If the wiring is disconnected, shorted or grounded, replace the wiring. 4. Replace the outer temperature sensor 2.
		Front PWB: Replace the front PWB.
		Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
7210	Short-circuited outer temperature sensor 2	Outer temperature sensor 2:
	The sensor input sampling is less than 69.	1. Confirm Ext/Int is displayed by U139 temperature and humidity . 2. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Outer temperature sensor 2 and Front PWB (YC19) Front PWB (YC2) and Engine PWB (YC10) 3. If the wiring is disconnected, shorted or grounded, replace the wiring. 4. Replace the outer temperature sensor 2.
		Front PWB: Replace the front PWB.
		Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
7221	Broken LSU thermistor K wire	LSU thermistor K: 1. Confirm LSU is displayed by U139 temperature and humidity . 2. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Laser scanner unit and LSU relay PWB (YC5) LSU relay PWB (YC3) and Engine PWB (YC12) 3. If the wiring is disconnected, shorted or grounded, replace the wiring. 4. Replace the laser scanner unit.
	The sensor input sampling is greater than 230.	LSU relay PWB: REPLACE the LSU relay PWB.
		Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
7222	Broken LSU thermistor C wire	LSU thermistor C: 1. Confirm LSU is displayed by U139 temperature and humidity. 2. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Laser scanner unit and LSU relay PWB (YC10) LSU relay PWB (YC3) and Engine PWB (YC12) 3. If the wiring is disconnected, shorted or grounded, replace the wiring. 4. Replace the laser scanner unit.
	The sensor input sampling is greater than 230.	LSU relay PWB: REPLACE the LSU relay PWB.
		Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
7223	Broken LSU thermistor M wire	LSU thermistor M: 1. Confirm LSU is displayed by U139 temperature and humidity . 2. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Laser scanner unit and LSU relay PWB (YC8) LSU relay PWB (YC3) and Engine PWB (YC12) 3. If the wiring is disconnected, shorted or grounded, replace the wiring. 4. Replace the laser scanner unit.
	The sensor input sampling is greater than 230.	LSU relay PWB: REPLACE the LSU relay PWB.
		Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
7224	Broken LSU thermistor Y wire	LSU thermistor Y: 1. Confirm LSU is displayed by U139 temperature and humidity. 2. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Laser scanner unit and LSU relay PWB (YC12) LSU relay PWB (YC3) and Engine PWB (YC12) 3. If the wiring is disconnected, shorted or grounded, replace the wiring. 4. Replace the laser scanner unit.
	The sensor input sampling is greater than 230.	LSU relay PWB: REPLACE the LSU relay PWB.
		Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
7231	Short-circuited LSU thermistor K	LSU thermistor K: 1. Confirm LSU is displayed by U139 temperature and humidity . 2. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Laser scanner unit and LSU relay PWB (YC5) LSU relay PWB (YC3) and Engine PWB (YC12) 3. If the wiring is disconnected, shorted or grounded, replace the wiring. 4. Replace the laser scanner unit.
	The sensor input sampling is less than 69.	LSU relay PWB: Replace the LSU relay PWB.
		Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
7232	Short-circuited LSU thermistor C	LSU thermistor C: 1. Confirm LSU is displayed by U139 temperature and humidity. 2. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Laser scanner unit and LSU relay PWB (YC10) LSU relay PWB (YC3) and Engine PWB (YC12) 3. If the wiring is disconnected, shorted or grounded, replace the wiring. 4. Replace the laser scanner unit.
	The sensor input sampling is less than 69.	LSU relay PWB: REPLACE the LSU relay PWB.
		Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
7233	Short-circuited LSU thermistor M	LSU thermistor M: 1. Confirm LSU is displayed by U139 temperature and humidity. 2. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Laser scanner unit and LSU relay PWB (YC8) LSU relay PWB (YC3) and Engine PWB (YC12) 3. If the wiring is disconnected, shorted or grounded, replace the wiring. 4. Replace the laser scanner unit.
	The sensor input sampling is less than 69.	LSU relay PWB: REPLACE the LSU relay PWB.
		Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
7234	Short-circuited LSU thermistor Y	LSU thermistor Y: 1. Confirm LSU is displayed by U139 temperature and humidity. 2. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Laser scanner unit and LSU relay PWB (YC12) LSU relay PWB (YC3) and Engine PWB (YC12) 3. If the wiring is disconnected, shorted or grounded, replace the wiring. 4. Replace the laser scanner unit.
	The sensor input sampling is less than 69.	LSU relay PWB: REPLACE the LSU relay PWB.
		Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
7241	Broken developer thermistor K wire	Developer thermistor K: 1. Confirm Developing is displayed by U139 temperature and humidity. 2. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Developer unit K and Front PWB (YC9) Front PWB (YC2) and Engine PWB (YC10) 3. If the wiring is disconnected, shorted or grounded, replace the wiring. 4. Replace the Developer unit K.
	The sensor input sampling is greater than 230.	Front PWB: Replace the front PWB.
		Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
7242	Broken developer thermistor C wire	Developer thermistor C: 1. Confirm Developing is displayed by U139 temperature and humidity. 2. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Developer unit C and Front PWB (YC13) Front PWB (YC2) and Engine PWB (YC10) 3. If the wiring is disconnected, shorted or grounded, replace the wiring. 4. Replace the Developer unit C.
	The sensor input sampling is greater than 230.	Front PWB: Replace the front PWB.
		Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
7243	Broken developer thermistor M wire	Developer thermistor M: 1. Confirm Developing is displayed by U139 temperature and humidity . 2. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Developer unit M and Front PWB (YC11) Front PWB (YC2) and Engine PWB (YC10) 3. If the wiring is disconnected, shorted or grounded, replace the wiring. 4. Replace the Developer unit M.
	The sensor input sampling is greater than 230.	Front PWB: Replace the front PWB.
		Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
7244	Broken developer thermistor Y wire	Developer thermistor Y: 1. Confirm Developing is displayed by U139 temperature and humidity. 2. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Developer unit Y and Front PWB (YC15) Front PWB (YC2) and Engine PWB (YC10) 3. If the wiring is disconnected, shorted or grounded, replace the wiring. 4. Replace the Developer unit Y.
	The sensor input sampling is greater than 230.	Front PWB: Replace the front PWB.
		Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
7251	Short-circuited developer thermistor K	Developer thermistor K: 1. Confirm Developing is displayed by U139 temperature and humidity. 2. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Developer unit K and Front PWB (YC9) Front PWB (YC2) and Engine PWB (YC10) 3. If the wiring is disconnected, shorted or grounded, replace the wiring. 4. Replace the Developer unit K.
	The sensor input sampling is less than 69.	Front PWB: Replace the front PWB.
		Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
7252	Short-circuited developer thermistor C	Developer thermistor C: 1. Confirm Developing is displayed by U139 temperature and humidity. 2. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Developer unit C and Front PWB (YC13) Front PWB (YC2) and Engine PWB (YC10) 3. If the wiring is disconnected, shorted or grounded, replace the wiring. 4. Replace the Developer unit C.
	The sensor input sampling is less than 69.	Front PWB: Replace the front
		PWB.Engine: PWB 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
7253	Short-circuited developer thermistor M:The sensor input sampling is less than 69.	Developer thermistor M: 1. Confirm Developing is displayed by U139 temperature and humidity. 2. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Developer unit M and Front PWB (YC11) Front PWB (YC2) and Engine PWB (YC10) 3. If the wiring is disconnected, shorted or grounded, replace the wiring. 4. Replace the Developer unit M:
7254	Short-circuited developer thermistor Y wire	Developer thermistor Y: 1. Confirm Developing is displayed by U139 temperature and humidity. 2. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Developer unit Y and Front PWB (YC15) Front PWB (YC2) and Engine PWB (YC10) 3. If the wiring is disconnected, shorted or grounded, replace the wiring. 4. Replace the Developer unit Y.
	The sensor input sampling is less than 69.	Front PWB: Replace the front PWB.
		Engine PWB 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
7401	Developer unit K type mismatch error	Different type of the developer unit is installed: Install the developer unit of the correct type.
7401	Improper adaptation of the machine and developer unit K is detected.	Developer unit K: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Developer unit K and Front PWB (YC9) Front PWB (YC2) and Engine PWB (YC10) 2. If the wiring is disconnected, shorted or grounded, replace the wiring.
7402	Developer unit C type mismatch error	Different type of the developer unit is installed: Install the developer unit of the correct type.
7402	Improper adaptation of the machine and developer unit C is detected.	Developer unit C: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Developer unit C and Front PWB (YC13) Front PWB (YC2) and Engine PWB (YC10) 2. If the wiring is disconnected, shorted or grounded, replace the wiring.
7403	Developer unit M type mismatch error	Different type of the developer unit is installed: Install the developer unit of the correct type.
7403	Improper adaptation of the machine and developer unit M is detected.	Developer unit M: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Developer unit M and Front PWB (YC11) Front PWB (YC2) and Engine PWB (YC10) 2. If the wiring is disconnected, shorted or grounded, replace the wiring.
7404	Developer unit Y type mismatch error	Different type of the developer unit is installed: Install the developer unit of the correct type.
7404	Improper adaptation of the machine and developer unit Y is detected.	Developer unit Y: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Developer unit Y and Front PWB (YC15) Front PWB (YC2) and Engine PWB (YC10) 2. If the wiring is disconnected, shorted or grounded, replace the wiring.
7601	ID sensor 1 error	ID sensor1 (front): 1. Execute U464 Calib for setting ID compensation operation and check the displayed values by U465 Boas Calib for ID compensation reference. 2. Detach the imtermediate intermediate transfer belt unit and clean the ID sensor on its surface. 3. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. ID sensor 1 (front) and Feed PWB 1(YC10) Feed PWB 1(YC1) and Engine PWB (YC6) 4. If the wiring is disconnected, shorted or grounded, replace the wiring.
	An abnormal value is detected in the input data to ID sensor 1. Dark potential error FrontDarkP and FrontDarkS are greater than 0.80V. Light potential error FrontBrightS is smaller than FrontDarkS. FrontBrightP is smaller than [FrontDarkP + 0.5V].	Feed PWB: 1 Replace the Feed PWB 1.
		Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
7602	ID sensor 2 error	ID sensor 2 (rear): 1. Execute U464 Calib for setting ID compensation operation and check the displayed values by U465 Boas Calib for ID compensation reference. 2. Detach the imtermediate intermediate transfer belt unit and clean the ID sensor on its surface. 3. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. ID sensor2 (rear) and Feed PWB 1(YC10) Feed PWB 1(YC1) and Engine PWB (YC6) 4. If the wiring is disconnected, shorted or grounded, replace the wiring.
	Dark potential error RearDarkP and RearDarkS are greater than 0.80V. Light potential error RearBrightS is smaller than RearDarkS. RearBrightP is smaller than [RearDarkP + 0.5V].	Feed PWB: 1 Replace the Feed PWB 1.
		Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
7800	Broken outer temperature sensor 1 wire	Outer temperature sensor 1: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Outer temperature sensor 1 and Front PWB (YC16) Front PWB (YC2) and Engine PWB (YC10) 2. If the wiring is disconnected, shorted or grounded, replace the wiring. 3. Replace the Outer temperature sensor 1.
	The device did not respond for more than 5 ms during reading, in 5 times.	Front PWB: Replace the front PWB.
		Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB
7901	Drum K EEPROM error	DR PWB-K: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. DR PWB-K and Front PWB (YC7) Front PWB (YC2) and Engine PWB (YC10) 2. If the wiring is disconnected, shorted or grounded, replace the wiring. 3. Replace the Drum unit K.
	No response is issued from the device in reading/writing for 5 ms or more and this problem is repeated five times successively. Mismatch of reading data from two locations occurs 8 times successively. Mismatch between writing data and reading data occurs 8 times successively.	Front PWB: Replace the front PWB.
		Engine PWB 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
7902	Drum C EEPROM error	DR PWB- C: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. DR PWB- C and Front PWB (YC12) Front PWB (YC2) and Engine PWB (YC10) 2. If the wiring is disconnected, shorted or grounded, replace the wiring. 3. Replace the Drum unit C.
	No response is issued from the device in reading/writing for 5 ms or more and this problem is repeated five times successively. Mismatch of reading data from two locations occurs 8 times successively. Mismatch between writing data and reading data occurs 8 times successively.	Front PWB: Replace the front PWB.
		Engine PWB 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB5 times.
7903	Drum M EEPROM error	DR PWB- M: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. DR PWB- M and Front PWB (YC10) Front PWB (YC2) and Engine PWB (YC10) 2. If the wiring is disconnected, shorted or grounded, replace the wiring. 3. Replace the Drum unit M.
	No response is issued from the device in reading/writing for 5 ms or more and this problem is repeated five times successively. Mismatch of reading data from two locations occurs 8 times successively. Mismatch between writing data and reading data occurs 8 times successively.	Front PWB: Replace the front PWB.
		Engine PWB 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
7904	Drum Y EEPROM error	DRPWB- Y: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. DRPWB- Y and Front PWB (YC14) Front PWB (YC2) and Engine PWB (YC10) 2. If the wiring is disconnected, shorted or grounded, replace the wiring. 3. Replace the Drum unit Y.
	No response is issued from the device in reading/writing for 5 ms or more and this problem is repeated five times successively. Mismatch of reading data from two locations occurs 8 times successively. Mismatch between writing data and reading data occurs 8 times successively.	Front PWB Replace the front PWB.
		Engine PWB 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB
7911	Developer unit K EEPROM error	Developer unit K: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Developer unit K and Front PWB (YC9) Front PWB (YC2) and Engine PWB (YC10) 2. If the wiring is disconnected, shorted or grounded, replace the wiring. 3. Replace the Developer unit K.
	No response is issued from the device in reading/writing for 5 ms or more and this problem is repeated five times successively. Mismatch of reading data from two locations occurs 8 times successively. Mismatch between writing data and reading data occurs 8 times successively.	Front PWB: Replace the front PWB.
		Engine PWB 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
7912	Developer unit C EEPROM error	Developer unit C: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Developer unit C and Front PWB (YC13) Front PWB (YC2) and Engine PWB (YC10) 2. If the wiring is disconnected, shorted or grounded, replace the wiring. 3. Replace the Developer unit C.
	No response is issued from the device in reading/writing for 5 ms or more and this problem is repeated five times successively. Mismatch of reading data from two locations occurs 8 times successively. Mismatch between writing data and reading data occurs 8 times successively.	Front PWB: Replace the front PWB.
		Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB5 times.
7913	Developer unit M EEPROM error	Developer unit M: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Developer unit M and Front PWB (YC11) Front PWB (YC2) and Engine PWB (YC10) 2. If the wiring is disconnected, shorted or grounded, replace the wiring. 3. Replace the Developer unit M.
	No response is issued from the device in reading/writing for 5 ms or more and this problem is repeated five times successively. Mismatch of reading data from two locations occurs 8 times successively. Mismatch between writing data and reading data occurs 8 times successively.	Front PWB: Replace the front PWB.
		Engine PWB 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
7914	Developer unit Y EEPROM error	Developer unit Y: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Developer unit Y and Front PWB (YC15) Front PWB (YC2) and Engine PWB (YC10) 2. If the wiring is disconnected, shorted or grounded, replace the wiring. 3. Replace the Developer unit Y.
	No response is issued from the device in reading/writing for 5 ms or more and this problem is repeated five times successively. Mismatch of reading data from two locations occurs 8 times successively. Mismatch between writing data and reading data occurs 8 times successively.	Front PWB: Replace the front PWB.
		Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB5 times.
7941	Laser scanner unit K EEPROM error	APC PWB K: 1. Confirm that the FCC wiring connector is not distorted and connect the FCC wiring all the way in. APC PWB K and LSU relay PWB (YC5) LSU relay PWB (YC2) and Engine PWB (YC11) 2. If the FCC wiring is disconnected, shorted or grounded, replace the FCC wiring. 3. Replace the laser scanner unit.
	[35 ppm/ 45 ppm/ 55 ppm model] Mismatch of reading data from two locations occurs 8 times successively. Mismatch between writing data and reading data occurs 8 times successively.	LSU relay PWB: Replace the LSU relay PWB.
		Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB.
7942	Laser scanner unit C EEPROM error	APC PWB C: 1. Confirm that the FCC wiring connector is not distorted and connect the FCC wiring all the way in. APC PWB C and LSU relay PWB (YC10) LSU relay PWB (YC2) and Engine PWB (YC11) 2. If the FCC wiring is disconnected, shorted or grounded, replace the FCC wiring. 3. Replace the laser scanner unit.
	[35 ppm/ 45 ppm/ 55 ppm model] Mismatch of reading data from two locations occurs 8 times successively. Mismatch between writing data and reading data occurs 8 times successively.	LSU relay PWB: Replace the LSU relay PWB.
		Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB5 times.
7943	Laser scanner unit M EEPROM error	APC PWB M: 1. Confirm that the FCC wiring connector is not distorted and connect the FCC wiring all the way in. APC PWB M and LSU relay PWB (YC8) LSU relay PWB (YC2) and Engine PWB (YC11) 2. If the FCC wiring is disconnected, shorted or grounded, replace the FCC wiring. 3. Replace 1-5-43the laser scanner unit.
	[35 ppm/ 45 ppm/ 55 ppm model] Mismatch of reading data from two locations occurs 8 times successively. Mismatch between writing data and reading data occurs 8 times successively.	LSU relay PWB: Replace the LSU relay PWB.
		Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB5 times.
7944	Laser scanner unit Y EEPROM error	APC PWB Y 1. Confirm that the FCC wiring connector is not distorted and connect the FCC wiring all the way in. APC PWB Y and LSU relay PWB (YC12) LSU relay PWB (YC2) and Engine PWB (YC11) 2. If the FCC wiring is disconnected, shorted or grounded, replace the FCC wiring. 3. Replace the laser scanner unit.
	[35 ppm/ 45 ppm/ 55 ppm model] Mismatch of reading data from two locations occurs 8 times successively. Mismatch between writing data and reading data occurs 8 times successively.	LSU relay PWB: Replace the LSU relay PWB.
		Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB
8010	Punch motor 1 error	Punch motor 1. Execute U240 Motor - Punch to check the finisher operation. 2. Manipulate the punch up and down to check it can smoothly move up and down. 3. Check that the drive from the motor reaches the punch cam. 4. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Punch motor and Punch PWB (YC4) 5. If the wiring is disconnected, shorted or grounded, replace the wiring. 6. Replace the punch motor.
	When the punch motor is driven, punch home position sensor does not turn on within 200 ms	Punch home position sensor: 1. Execute U241 Punch - Punch HP to check the finisher switch. 2. Check that the sensor and its mounting bracket are correctly positioned. 3. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Punch home position sensor and Punch PWB (YC8) 4. Replace the Punch home position sensor.
		Punch PWB: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Punch PWB (YC1) and DF main PWB (YC7) (4000-sheet finisher) Punch PWB (YC1) and DF main PWB (YC8) (1000-sheet finisher) 2. Replace the punch PWB.
		DF main PWB: Replace the DF main PWB.
8020	Punch motor 2 error	Punch motor: 1. Execute U240 Motor - Punch to check the finisher operation . 2. Manipulate the punch up and down to check it can smoothly move up and down. 3. Check that the drive from the motor reaches the punch cam. 4. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Punch motor and Punch PWB (YC4) 5. If the wiring is disconnected, shorted or grounded, replace the wiring. 6. Replace the punch motor.
	Home position is not obtained in 3 s after home position is initialized or in standby.	Punch PWB: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Punch PWB (YC1) and DF main PWB (YC7)(4000-sheet finisher) Punch PWB (YC1) and DF main PWB (YC8)(1000-sheet finisher) 2. Replace the punch PWB.
		DF main PWB: Replace the DF main PWB
8030	Punch motor 3 error	Punch motor: 1. Execute U240 Motor - Punch to check the finisher operation. 2. Manipulate the punch up and down to check it can smoothly move up and down. 3. Check that the drive from the motor reaches the punch cam. 4. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Punch motor and Punch PWB (YC4) 5. If the wiring is disconnected, shorted or grounded, replace the wiring. 6. Replace the punch motor.
	Home position does not turn from On to Off in 50 ms after home position has been initialized.{?	Punch PWB: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Punch PWB (YC1) and DF main PWB (YC7) (4000-sheet finisher) Punch PWB (YC1) and DF main PWB (YC8) (1000-sheet finisher) 2. Replace the punch PWB.
		DF main PWB: Replace the DF main PWB
8090	DF paddle motor error	DF paddle motor: 1. Execute U240 Motor - Beat to check the finisher operation. 2. Check that the paddle can rotate. 3. Check that the drive from the motor reaches the paddle. 4. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. DF paddle motor and DF main PWB (YC15) (4000-sheet finisher) DF paddle motor and DF main PWB (YC11) (1000-sheet finisher) 5. If the wiring is disconnected, shorted or grounded, replace the wiring. 6. Replace the DF paddle motor.
	When the DF paddle motor is driven, DF paddle sensor does not turn on within 1 s.	DF paddle sensor: 1. Execute U241 Finisher - Bundle Eject HP to check the finisher switch. 2. Check that the sensor and its mounting board are correctly positioned. 3. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. DF paddle sensor and DF main PWB (YC22) (4000-sheet finisher) DF paddle sensor and DF main PWB (YC20) (1000-sheet finisher) 4. Replace the DF paddle sensor.
		DF main PWB: Replace the DF main PWB.
8100	DF eject release motor error	DF eject release motor DF bundle discharge unit sensor: 1. Execute Motor - Eject Unlock (Full) of U240 finisher operation check. 2. Check that the eject guide of the process tray is opened and, if not, correct the guide. 3. Check that the drive from the motor reaches the eject guide. 4. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. DF bundle discharge unit sensor and DF main PWB (YC22)(4000-sheet finisher) DF bundle discharge unit sensor and DF main PWB (YC20)(1000-sheet finisher) 5. If the wiring is disconnected, shorted or grounded, replace the wiring. 6. Replace the DF eject release motor.
	When the DF eject release motor is driven, DF bundle discharge sensor does not turn on within 1 s.	DF bundle discharge unit sensor: 1. Execute Finisher - Bundle Eject HP of U241 finisher switch check. 2. Check that the sensor and its mounting board are correctly positioned. 3. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. DF bundle discharge unit sensor and DF main PWB (YC22)(4000-sheet finisher) DF bundle discharge unit sensor and DF main PWB (YC20)(1000-sheet finisher) 4. Replace the DF bundle discharge unit sensor.
		DF main PWB: Replace the DF main PWB.
8110	DF shift motor 1 error	DF shift motor 1 [front]: 1. Execute U240 Motor - Sort Test to check the finisher operation. 2. Manipulate the front shift guide back and forth to check that it is smoothly operable. 3. Check that the drive from the motor reaches the front shift guide. 4. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. DF shift motor 1 and DF main PWB (YC14) 5. If the wiring is disconnected, shorted or grounded, replace the wiring. 6. Replace the DF shift motor 1
	(4000-sheet finisher) DF shift sensor 1 won’t turn on when it has travelled 160 mm after DF shift motor 1 is driven.	DF shift sensor 1 [front]: 1. Execute U241 Finisher - Shift Front HP to check the finisher switch. 2. Check that the sensor and its mounting bracket are correctly positioned. 3. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. DF shift sensor 1 and DF main PWB (YC23) 4. Replace the DF shift sensor 1.
		DF main PWB: Replace the DF main PWB.
8120	DF shift motor 2 error	DF shift motor 2 [rear]: 1. Execute U240 Motor - Sort Test to check the finisher operation. 2. Manipulate the rear shift guide back and forth to check it is smoothly operable. 3. Check that the drive from the motor reaches the rear shift guide. 4. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. DF shift motor 2 and DF main PWB (YC14) 5. If the wiring is disconnected, shorted or grounded, replace the wiring. 6. Replace the DF shift motor 2.
	(4000-sheet finisher) DF shift sensor 1 won’t turn on when it has travelled 160 mm after DF shift motor 1 is driven.	DF shift set sensor 2 [rear]: 1. Execute U241 Finisher - Shift Trail HP to check the finisher switch. 2. Check that the sensor and its mounting bracket are correctly positioned. 3. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. DF shift sensor 2 and DF main PWB (YC23) 4. Replace the DF shift set sensor2.
		DF main PWB: Replace the DF main PWB
8130	DF shift release motor error	DF shift release motor: 1. Check that cancelling the maintenance mode after executing U240 Motor - Sort for the finisher operation check lets the rear and forth cursors return to the home position. 2. Manipulate the shift guide back and forth to check it is smoothly operable. 3. Check that the drive from the motor reaches the shift guide front and rear. 4. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. DF shift release motor and DF main PWB (YC23) 5. If the wiring is disconnected, shorted or grounded, replace the wiring. 6. Replace the DF shift release motor.
	(4000-sheet finisher) When the DF shift release motor is driven, DF shift release sensor does not turn on within 1 s.	DF shift release sensor: 1. Execute U241 Finisher - Shift Unlock HP to check the finisher switch. 2. Check that the sensor and its mounting bracket are correctly positioned. 3. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. DF shift release sensor and DF main PWB (YC23) 4. Replace the DF shift release sensor.
		DF main PWB: Replace the DF main PWB.
8140	DF tray motor error 1	DF tray motor: 1. Execute U240 Motor - Tray to check the finisher operation. 2. Manipulate the main tray up and down to check it is smoothly operable. 3. Check that the drive from the motor reaches the main tray. 4. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. DF tray motor and DF Main PWB(YC16) (4000-sheet finisher) DF tray motor and DF Main PWB(YC14) (1000-sheet finisher) 5. If the wiring is disconnected, shorted or grounded, replace the wiring. 6. Replace the DF tray motor.
	When the main tray has ascended, DF tray sensor 1 or DF tray upper surface sensor does not turn on within 20 s.	DF tray sensor 1 DF tray upper surface sensor: 1. Execute U241 Finisher - Tray U-Limit, Tray Top to check the finisher switch . 2. Check that the sensor and its mounting bracket are correctly positioned. 3. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. DF tray sensor 1 and DF Main PWB(YC22) (4000-sheet finisher) DF tray upper surface sensor and DF Main PWB(YC21,YC13) (4000-sheet finisher) DF tray sensor 1 and DF main PWB (YC20) (1000-sheet finisher) DF tray upper surface sensor and DF main PWB (YC18) (1000-sheet finisher) 4. Replace the DF tray sensor 1 or DF tray upper surface sensor.
		DF main PWB: Replace the DF main PWB.
8150	DF tray motor error 2	DF tray motor: 1. Execute U240 Motor - Tray to check the finisher operation. 2. Manipulate the main tray up and down to check it is smoothly operable. 3. Check that the drive from the motor reaches the main tray. 4. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. DF tray motor and DF main PWB (YC16) (4000-sheet finisher) DF tray motor and DF main PWB (YC14) (1000-sheet finisher) 5. If the wiring is disconnected, shorted or grounded, replace the wiring. 6. Replace the DF tray motor.
	When the main tray has descended, DF tray sensor 1 or DF tray upper surface sensor does not turn off within 5 s.	DF tray sensor 1 DF tray upper surface sensor: 1. Execute U241 Finisher - Tray U-Limit, Tray Top to check the finisher switch. 2. Check that the sensor and its mounting bracket are correctly positioned. 3. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. DF tray sensor 1 and DF main PWB (YC22) (4000-sheet finisher) DF tray upper surface sensor and DF main PWB (YC21,YC13) (4000-sheet finisher) DF tray sensor 1 and DF main PWB (YC20) (1000-sheet finisher) DF tray upper surface sensor and DF main PWB (YC18) (1000-sheet finisher) 4. Replace the DF tray sensor 1 or DF tray upper surface sensor.
		DF main PWB: Replace the DF main PWB.
8160	DF tray motor error 3	DF tray motor: 1. Execute U240 Motor - Tray to check the finisher operation. 2. Manipulate the main tray up and down to check it is smoothly operable. 3. Check that the drive from the motor reaches the main tray. 4. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. DF tray motor and DF main PWB (YC16) (4000-sheet finisher) DF tray motor and DF main PWB (YC14) (1000-sheet finisher) 5. If the wiring is disconnected, shorted or grounded, replace the wiring. 6. Replace the DF tray motor.
	When the main tray has descended, DF tray sensor 3 does not turn on within 20 s.	DF tray sensor 4: 1. Execute U241 Finisher - Tray Middle to check the finisher switch. 2. Check that the sensor and its mounting bracket are correctly positioned. 3. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. DF tray sensor 4 and DF main PWB (YC23) (4000-sheet finisher) DF tray sensor 4 and DF main PWB (YC20) (1000-sheet finisher) 4. Replace the DF tray sensor 4.
		DF main PWB: Replace the DF main PWB
8170	DF side registration motor 1 error 1	DF side registration motor 1: 1. Execute U240 Motor - Width Test to check the finisher operation. 2. Manipulate the front side registration guide to check it is smoothly operable. 3. Check that the drive from the motor reaches the front side registration guide. 4. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. DF side registration motor 1 and DF main PWB (YC15) (4000-sheet finisher) DF side registration motor 1 and DF main PWB (YC11) (1000-sheet finisher) 5. If the wiring is disconnected, shorted or grounded, replace the wiring. 6. Replace the DF side registration motor 1.
	When initial operation, DF side registration sensor 1 does not turn on within 3 s.	DF side registration sensor 1: 1. Execute U241 Finisher - Width Front to check the finisher switch. 2. Check that the sensor and its mounting bracket are correctly positioned. 3. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. DF side registration sensor 1. and DF main PWB (YC22) (4000-sheet finisher) DF side registration sensor 1. and DF main PWB (YC20) (1000-sheet finisher) 4. Replace the DF side registration sensor 1.
		DF main PWB: Replace the DF main PWB
8180	DF side registration motor 1 error 2	DF side registration motor 1: 1. Execute U240 Motor - Width Test to check the finisher operation. 2. Manipulate the front side registration guide back and forth to check it is smoothly operable. 3. Check that the drive from the motor reaches the front side registration guide. 4. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. DF side registration motor 1 and DF main PWB (YC15) (4000-sheet finisher) DF side registration motor 1 and DF main PWB (YC11) (1000-sheet finisher) 5. If the wiring is disconnected, shorted or grounded, replace the wiring. 6. Replace the DF side registration motor 1.
	JAM6810 ( jam in front of width alignment) is detected twice.	DF side registration sensor 1: 1. Execute U241 Finisher - Width Front to check the finisher switch. 2. Check that the sensor and its mounting bracket are correctly positioned. 3. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. DF side registration sensor 1. and DF main PWB (YC22) (4000-sheet finisher) DF side registration sensor 1. and DF main PWB (YC20) (1000-sheet finisher) 4. If the wiring is disconnected, shorted or grounded, replace the wiring. 5. Replace the DF side registration sensor 1.
		DF main PWB: Replace the DF main PWB.
8190	DF side registration motor 2 error 1	DF side registration motor 2: 1. Execute U240 Motor - Width Test to check the finisher operation. 2. Manipulate the rear side registration guide back and forth to check it is smoothly operable. 3. Check that the drive from the motor reaches the rear side registration guide. 4. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. DF side registration motor 2 and DF main PWB (YC15) (4000-sheet finisher) DF side registration motor 2 and DF main PWB (YC11) (1000-sheet finisher) 5. If the wiring is disconnected, shorted or grounded, replace the wiring. 6. Replace the DF side registration motor 2.
	When initial operation, DF side registration sensor 2 does not turn on within 3 s.	DF side registration sensor 2: 1. Execute U241 Finisher - Width tail HP to check the finisher switch. 2. Check that the sensor and its mounting bracket are correctly positioned. 3. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. DF side registration sensor 2 and DF main PWB (YC22) (4000-sheet finisher) DF side registration sensor 2 and DF main PWB (YC20) (1000-sheet finisher) 4. Replace the DF side registration sensor 2.
		DF main PWB: Replace the DF main PWB.
8200	DF side registration motor 2 error 2	DF side registration motor 2: 1. Execute U240 Motor - Width Test to check the finisher operation. 2. Manipulate the rear side registration guide back and forth to check it is smoothly operable. 3. Check that the drive from the motor reaches the rear side registration guide. 4. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. DF side registration motor 2 and DF main PWB (YC15) (4000-sheet finisher) DF side registration motor 2 and DF main PWB (YC11) (1000-sheet finisher) 5. If the wiring is disconnected, shorted or grounded, replace the wiring. 6. Replace the DF side registration motor 2.
	JAM6910 ( jam in rear of width alignment) is detected twice.	DF side registration sensor 2: 1. Execute U241 Finisher - Width tail HP to check the finisher switch. 2. Check that the sensor and its mounting bracket are correctly positioned. 3. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. DF side registration sensor 2 and DF main PWB (YC22) (4000-sheet finisher) DF side registration sensor 2 and DF main PWB (YC20) (1000-sheet finisher) 4. Replace the DF side registration sensor 2.
		DF main PWB: Replace the DF main PWB.
8210	DF slide motor error	DF slide motor: 1. Execute U240 Motor - Staple Move to check the finisher operation. 2. Manipulate the staple unit back and forth to check it is smoothly operable. 3. Check that the drive from the motor reaches the staple unit. 4. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. DF slide motor and DF main PWB (YC12) (4000-sheet finisher) DF slide motor and DF main PWB (YC10) (1000-sheet finisher) 5. If the wiring is disconnected, shorted or grounded, replace the wiring. 6. Replace the DF slide motor.
	When initial operation, DF staple sensor does not turn on within 3 s.	DF staple sensor: 1. Execute U241 Finisher - Width Staple HP to check the finisher switch. 2. Check that the sensor and its mounting bracket are correctly positioned. 3. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. DF staple sensor and DF main PWB (YC22) (4000-sheet finisher) DF staple sensor and DF main PWB (YC20) (1000-sheet finisher) 4. If the wiring is disconnected, shorted or grounded, replace the wiring. 5. Replace the DF staple sensor.
		DF main PWB: Replace the DF main PWB.
8230	DF staple motor error 1	DF staple motor: 1. Remove the staple unit and check that stapling is possible without a jam. 2. Confirm that the FCC wiring connector is not distorted and connect the FCC wiring all the way in. Staple unit and DF main PWB (YC17) (4000-sheet finisher) Staple unit and DF main PWB (YC11) (1000-sheet finisher) 3. If the wiring is disconnected, shorted or grounded, replace the wiring. 4. Replace the staple unit.
	Staple JAM (DF) has been detected twice in a row. (The second JAM detection condition fullfilled with the home position did not detected in 600 ms after the motor was driven.)	DF staple sensor: Replace the staple unit.
		DF main PWB: Replace the DF main PWB
8240	DF staple motor error 2	DF staple motor: 1. Remove the staple unit and check that stapling is possible without a jam. 2. Confirm that the FCC wiring connector is not distorted and connect the FCC wiring all the way in. Staple unit and DF main PWB (YC17) (4000-sheet finisher) Staple unit and DF main PWB (YC11) (1000-sheet finisher) 3. If the wiring is disconnected, shorted or grounded, replace the wiring. 4. Replace the staple unit.
8240	Staple JAM (DF) has been detected twice in a row. (The second JAM detection condition fullfilled with a lock detection signal maintained 1 V for 500 ms continuously, while the stapler motor was driven.)	DF main PWB: Replace the DF main PWB
8300	Center-folding unit communication error	CF unit set switch: 1. Execute U241 Booklet - Set to check the finisher switch. 2. Check that the switch and its mounting bracket are correctly positioned. 3. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. CF main PWB (YC7) and DF main PWB (YC9) 4. If the wiring is disconnected, shorted or grounded, replace the wiring. 5. Replace the CF unit set switch.
	(4000-sheet finisher) Communication with the center- folding unit is not possible.	CF main PWB: Replace the CF main PWB.
		DF main PWB: Replace the DF main PWB.
8310	CF side registration motor 2 error	CF side registration motor 2: 1. Execute Motor - Width Test of U240 finisher operation check . 2. Manipulate the side registration upper guide back and forth to check it can smoothly move back and forth. 3. Check that the drive from the motor reaches the side registration upper guide. 4. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. CF side registration motor 2 and CF main PWB (YC10) 5. If the wiring is disconnected, shorted or grounded, replace the wiring. 6. Replace the CF side registration motor.
	(4000-sheet finisher) When initial operation, CF side registration sensor 2 does not turn on within 1 s.	CF side registration sensor 2: 1. Execute U241 Booklet - Width Up HP to check the finisher switch. 2. Check that the sensor and its mounting bracket are correctly positioned. 3. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. CF side registration sensor 2 and CF main PWB (YC20) 4. Replace the CF side registration sensor 2.
		CF main PWB: Replace the CF main PWB
8320	CF adjustment motor error	CF adjustment motor1,2: 1. Execute U240 Motor - Bundle Up / Down to check the finisher operation . 2. Manipulate the fold moving belt up and down to check it is smoothly operable. 3. Check that the drive from the motor reaches the fold moving belt. (Check if the belt is bent.) 4. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. CF adjustment motor 1,2 and CF main PWB (YC10) 5. If the wiring is disconnected, shorted or grounded, replace the wiring. 6. Replace the CF adjustment motor1,2.
	(4000-sheet finisher) When initial operation, CF adjustment sensor does not turn on within 2.5 s.a	CF adjustment sensor1,2: 1. Execute U241 Booklet - bundle Up / Down HP to check the finisher switch . 2. Check that the sensor and its mounting bracket are correctly positioned. 3. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. CF adjustment sensor 1,2 and CF main PWB (YC20) 4. Replace the CF adjustment sensor1,2.
		CF main PWB: Replace the CF main PWB.
8330	CF blade motor error	CF blade motor: 1. Execute U240 Booklet - Blade to check the finisher operation . 2. Manipulate the fold blade up and down to check it is smoothly operable. 3. Check that the drive from the motor reaches the fold blade. 4. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. CF blade motor and CF main PWB (YC15) 5. If the wiring is disconnected, shorted or grounded, replace the wiring. 6. Replace the CF blade motor.
	(4000-sheet finisher) When initial operation, CF blade sensor does not turn on within 1500 ms.	CF blade sensor: 1. Execute U241 Booklet - Blade HP to check the finisher switch. 2. Check that the sensor and its mounting bracket are correctly positioned. 3. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. CF blade sensor and CF main PWB (YC20) 4. Replace the CF blade sensor.
		CF main PWB: Replace the CF main PWB.
8340	CF staple motor error 1	CF staple motor: 1. Execute U240 Booklet - Staple to check the finisher operation. 2. Manipulate the staple up and down check it is smoothly operable. 3. Check that the drive from the motor reaches the staple unit. 4. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. CF staple unit and CF main PWB (YC13) 5. If the wiring is disconnected, shorted or grounded, replace the wiring. 6. Replace the CF staple motor.
	(4000-sheet finisher) Staple JAM (center-folding unit) has been detected twice in a row. (The second JAM detection condition fullfilled with the home position did not detected in 600 ms after the motor was driven.)	CF staple sensor: Replace the CF staple unit.
		CF main PWB: Replace the CF main PWB.
8350	CF side registration motor 1 error	CF side registration motor 1: 1. Execute U240 Booklet - Width Test to check the finisher operation. 2. Manipulate the side registration lower guide back and forth to check it can smoothly operable. 3. Check that the drive from the motor reaches the side registration lower guide. 4. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. CF side registration motor 1 and CF main PWB (YC10) 5. If the wiring is disconnected, shorted or grounded, replace the wiring. 6. Replace the CF side registration motor 1.
	(4000-sheet finisher) When initial operation, CF side registration sensor 1 does not turn on within 1 s.	CF side registration sensor 1: 1. Execute U241 Booklet - Width Down HP to check the finisher switch. 2. Check that the sensor and its mounting bracket are correctly positioned. 3. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. CF side registration sensor 1 and CF main PWB (YC20) 4. Replace the CF side registration sensor 1.
		CF main PWB Replace the CF main PWB.
8360	CF main motor error	CF main motor: 1. Execute U240 Booklet - Folding to check the finisher operation. 2. Manipulate the conveying roller to check it can smoothly rotate. 3. Check that the drive from the motor reaches the conveying roller. 4. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. CF main motor and CF main PWB (YC16) 5. If the wiring is disconnected, shorted or grounded, replace the wiring. 6. Replace the CF main motor.
8360	(4000-sheet finisher) During driving the motor, the lock signal is detected for 1 s continuously.	CF main PWB: Replace the CF main PWB.
8410	Punch slide motor error 1	Punch slide motor: 1. Execute U240 Booklet - Punch Move to check the finisher operation. 2. Manipulate the punch slide part of the punch unit back and forth to check it can smoothly move. 3. Check that the drive from the motor reaches punch area. 4. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Punch slide motor and Punch PWB (YC3) 5. If the wiring is disconnected, shorted or grounded, replace the wiring. 6. Replace the punch slide motor.
	The punch slide sensor won’t turn On when home position has been moved by 30 mm.	Punch slide sensor: 1. Execute U241 Punch - Punch HP to check the finisher switch. 2. Check that the sensor and its mounting bracket are correctly positioned. 3. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Punch slide sensor and Punch PWB (YC6) 4. Replace the punch slide sensor.
		Punch PWB: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Punch PWB (YC1) and DF main PWB (YC7) (4000-sheet finisher) Punch PWB (YC1) and DF main PWB (YC8) (1000-sheet finisher) 2. Replace the punch PWB.
		DF main PWB: Replace the DF main PWB
8420	Punch slide motor error 2	Punch slide motor: 1. Execute U240 Booklet - Punch Move to check the finisher operation. 2. Manipulate the punch slide part of the punch unit back and forth to check it can smoothly move. 3. Check that the drive from the motor reaches punch part. 4. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Punch slide motor and Punch PWB (YC3) 5. If the wiring is disconnected, shorted or grounded, replace the wiring. 6. Replace the punch slide motor.
	In detection of paper edges, the paper edge cannot be detected in 30 mm move	Punch paper edge sensor 1,2: 1. Execute U241 Punch - Edge Face 1,2,3,4 to check the finisher switch . 2. Check that the sensor and its mounting bracket are correctly positioned. 3. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Punch paper edge sensor 1,2 and Punch PWB (YC5,YC7) 4. Replace the punch paper edge sensor 1,2.
		Punch PWB: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Punch PWB (YC1) and DF main PWB (YC7) (4000-sheet finisher) Punch PWB (YC1) and DF main PWB (YC8) (1000-sheet finisher) 2. Replace the Punch PWB.
		DF main PWB: Replace the DF main PWB
8430	Punch unit communication error	Punch PWB: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Punch PWB (YC1) and DF main PWB (YC7) (4000-sheet finisher) Punch PWB (YC1) and DF main PWB (YC8) (1000-sheet finisher) 2. If the wiring is disconnected, shorted or grounded, replace the wiring. 3. Replace the Punch PWB.
8430	Communication with the punch unit is not possible.	DF main PWB: Replace the DF main PWB.
8500	Mailbox communication error	MB main PWB: 1. Turn the main power switch off and after 5 seconds, turn it on. 2. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. MB main PWB (YC3) and DF main PWB (YC6) 3. If the wiring is disconnected, shorted or grounded, replace the wiring. 4. Replace the MB main PWB.
8500	(4000-sheet finisher) Communication failed to be established after the mailbox was hooked up.	DF main PWB: Replace the DF main PWB.
8510	MB conveying motor error 1	MB conveying motor: 1. If the transfer roller won’t rotate smoothly, repair its mechanism. 2. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. MB conveying motor and MB main PWB (YC5) 3. If the wiring is disconnected, shorted or grounded, replace the wiring. 4. Replace the MB conveying motor.
	(4000-sheet finisher) When initial operation, MB home position sensor does not turn on within 5 s.	MB home position sensor: 1. Execute U241 Mail Box - Motor HP to check the finisher switch . 2. Check that the sensor and its mounting bracket are correctly positioned. 3. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. MB home position sensor and MB main PWB (YC2) 4. Replace the MB home position sensor.
		MB main PWB: Replace the MB main PWB
8520	MB conveying motor error 2	MB conveying motor: 1. Execute Mail Box - Conv of U240 finisher operation check . 2. Manipulate the conveying roller of the mailbox to check it can smoothly rotate. 3. Check that the drive from the motor reaches the conveying roller. 4. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. MB conveying motor and MB main PWB (YC5) 5. If the wiring is disconnected, shorted or grounded, replace the wiring. 6. Replace the MB conveying motor.
	(4000-sheet finisher) When standby operation, MB home position sensor does not turn off within 1 s.	MB home position sensor: 1. Execute U241 Mail Box - Motor HP to check the finisher switch . 2. Check that the sensor and its mounting bracket are correctly positioned. 3. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. MB home position sensor and MB main PWB (YC2) 4. Replace the MB home position sensor.
		MB main PWB: Replace the MB main PWB.
8800	Document finisher main program error	DF main PWB: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. DF main PWB (YC4) and Engine PWB (YC18) (4000-sheet finisher) DF main PWB (YC7) and Engine PWB (YC18) (1000-sheet finisher) 2. If the wiring is disconnected, shorted or grounded, replace the wiring. 3. Replace the DF main PWB.
8800	Document finisher main program error at power up.	Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB
8900	Document finisher backup error	DF main PWB: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. DF main PWB (YC4) and Engine PWB (YC18) (4000-sheet finisher) DF main PWB (YC7) and Engine PWB (YC18) (1000-sheet finisher) 2. If the wiring is disconnected, shorted or grounded, replace the wiring. 3. Replace the DF main PWB.
8900	Read and write data does not match 3 times in succession.
8930	Center-folding unit backup error	CF main PWB: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. CF main PWB (YC7) and DF main PWB (YC9) 2. If the wiring is disconnected, shorted or grounded, replace the wiring. 3. Install the EEPROM properly. 4. Replace the CF main PWB.
8930	(4000-sheet finisher) Read and write data does not match 3 times in succession.
9000	Document processor communication error	DP main PWB: 1. Check that the versions of the main unit firmware and the DP firmware are identical. 2. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. DP main PWB(YC1) and ISC PWB(YC12) ISC PWB (YC3) and Main PWB (YC11) 3. If the wiring is disconnected, shorted or grounded, replace the wiring. 4. Replace the DP main PWB.
9000	Communication with the document processor is not possible.	ISC PWB: Replace the ISC PWB.
9010	Coin vender communication error	U206 setting: Set maintenance mode U206 to off when a coin vender is not installed .
	A communication error from coin vender is detected 10 times in succession.	Coin vender control PWB: 1. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. Coin vender control PWB and Engine PWB (YC23) 2. If the wiring is disconnected, shorted or grounded, replace the wiring. 3. Replace the Coin vender control PWB.
		Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB .
9040	DP lift motor going up error	DP lift motor: 1. Execute U906 Separating Operation Release . 2. Execute U243 Lift Motor to check the DP motor operation . 3. Check that the original document lift guide can move upwards. 4. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. DP lift motor and DP MAIN PWB (YC5) 5. If the wiring is disconnected, shorted or grounded, replace the wiring. 6. Replace the DP lift motor.
	When the DP lift motor is driven, DP lift sensor 1 does not turn on within 1500 pulse. (Three recovery times.) The above has been detected 5 times. * : The number of detection should be weighted with one for the rise at job start and two for the irregular rise during transpoting. The accumulated number must be cleared at completion of a normal rise. The default threshold is 5.	DP lift sensor 1: 1. Execute U244 LIFT L-Limit to check DP switch . 2. Check that the sensor and its mounting bracket are correctly positioned. 3. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. DP lift sensor 1 and DP Main PWB (YC4) 4. Replace the DP lift sensor 1.
		DP Main PWB: Replace the DP main PWB.
9050	DP lift motor going down error	DP lift motor: 1. Execute U906 Separating Operation Release . 2. Execute U243 Lift Motor to check the DP motor operation . 3. Check that the original document lift guide can move downwards. 4. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. DP lift motor and DP main PWB (YC5) If the wiring is disconnected, shorted or grounded, replace the wiring. 5. Replace the DP lift motor.
	When the DP lift motor is driven, DP lift sensor 2 does not turn on within 1500 pulse. (Three recovery times.) The above has been detected 5 times.	DP lift sensor 2: 1. Execute U244 LIFT L-Limit to check DP switch . 2. Confirm that the DP lift sensor 2 has been firmly fitted. 3. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. DP lift sensor 2 and DP main PWB (YC2) 4. Replace the DP lift sensor2.
		DP main PWB: Replace the DP main PWB.
9060	DP EEPROM error	DP main PWB: 1. Execute U906 Separating Operation Release . 2. Confirm that the EEPROM has been properly installed. 3. Replace the DP main PWB.
9060	Mismatch of reading data from two locations occurs 3 times successively. Mismatch between writing data and reading data occurs 3 times successively.	Device damage of EEPROM: Contact the Service Support.
9070	Communication error between DP and SHD	DP SHD PWB: 1. Execute U906 Separating Operation Release . 2. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. DP SHD PWB (YC1) and DP main PWB (YC10) 3. If the wiring is disconnected, shorted or grounded, replace the wiring. 4. Replace the DP SHD PWB.
9070	A communication error is detected.
9080	LED fault detection	DP CIS: 1. Execute CIS automatic original document alignment by U411 . 2. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. CIS and DP SHD PWB (YC2) DP SHD PWB (YC1) and DP main PWB (YC10) 3. If the wiring is disconnected, shorted or grounded, replace the wiring. 4. Replace the CIS and execute U411.
9080	A block is existent below a peak which was obtained by activating the LEDs in the four CIS blocks at power on, which is less than 80hex.	DP SHD PWB: Replace the DP SHD PWB.
9100	Coin vender control PWB error	Coin vender control PWB: Replace the coin mec.
9100	Communication error has been detected at the coin mec of the coin vender control PWB.	Coin vender control PWB: Replace the coin mec.
9110	Coin vender rejector error	Rejector: 1. Check that the rejector is firmly installed and, if not, install firmly. 2. Replace the rejector.
9110	Communication error has been detected in connection with the coin mec and the rejector.
9120	Sensor error in coin vender change (Yen 10)	Coin jam in the change tube: Check visually and remedy.
	Change is empty despite change is enough.	Contact in the connector: Check the connection of the empty change sensor.
		Change empty sensor: Replace the coin mec.
		Coin vender control PWB: Replace the coin mec.
9130	Sensor error in coin vender change (Yen 50)	Coin jam in the change tube: Check visually and remedy.
	Change is empty despite change is enough.	Contact in the connector: Check the connection of the empty change sensor.
		Change empty sensor Replace the coin mec.
		Coin vender control PWB: Replace the coin mec.
9140	Sensor error in coin vender change (Yen 100)	Coin jam in the change tube: Check visually and remedy.
	Change is empty despite change is enough.	Contact in the connector: Check the connection of the empty change sensor.
		Change empty sensor: Replace the coin mec.
		Coin vender control PWB: Replace the coin mec.
9150	Sensor error in coin vender change (Yen 500)	Change tube: Check no exchange jam is observed at the outlet and, if necessary, repair it.
	Change is empty despite change is enough	Contact in the connector: Check the connection of the empty change sensor.
		Change empty sensor: Replace the coin mec.
		Coin vender control PWB: Replace the coin mec.
9160	Coin vender pay-out error	Pay-out motor: Replace the coin mec.
9160	Coin is paid out despite the pay-out motor is determined not active.	Pay-out motor: Replace the coin mec.
9170	Coin vender pay-out sensor error	Pay-out area: Check no exchange jam is observed at the outlet and, if necessary, repair it.
	Coin is paid out despite the pay-out motor is determined not active.	Pay-out motor Replace the coin mec.
		Pay-out sensor: Replace the coin mec.
9500	ISC PWB error A	Main PWB, ISC PWB: 1. Reinsert the connector if its connection is loose. Main PWB (YC25) and ISC PWB (YC4) 2. Replace the main PWB . 3. Replace the ISC PWB 4. Contact the Service Support.
9510	ISC PWB error B	Main PWB, DP SHD PWB: 1. Reinsert the connector if its connection is loose. DP relay PWB (YC2) and DP SHD PWB (YC3) 2. Replace the main PWB . 3. Replace the DP SHD PWB. 4. Contact the Service Support.
9520	ISC PWB error C	Main PWB, ISC PWB: 1. Reinsert the connector if it its connection is loose. Main PWB (YC25) and ISC PWB (YC4) 2. Replace the main PWB . 3. Replace the ISC main PWB 4. Contact the Service Support.
9940	Confidential document guard uninstalled error	Confidential document guard PWB: 1. Check that the confidential document guard PWB is firmly installed and, if not, install firmly. 2. Replace the confidential document guard PW.
9940	The confidential document guard PWB is removed while the confidential document guard PWB is valid.
9950	Confidential document guard PWB error	Confidential document guard PWB: 1. Replace the confidential document guard PW. 2. Replace the main PWB .
9950	FPGA configuration error CPU version information error This is caused when the PWB of a double-side scanning DP is connected, the confidential guard PWB is inserted, and the harness is not correctly connected.
F000	Communication error between main PWB and operation PWB	Main PWB: 1. Turn the main power swtch off and after 5 seconds, then turn power on. 2. Check that the wirings and connetors between the main circuit PWB and the operation circuit PWB and between the main circuit PWB and the HDD are normal. Main PWB (YC12,YC17,YC30) and Operation PWB (YC1,YC2,YC3) 3. Check that the DDR memories in the main circuit PWB are well conducted and, if not, replace. 4. Execute U024 to initialize (FULL) the HDD . 5. Execute U021 to initialize memory. 6. Replace the Main PWB. 7. Copy the log File saved in the HDD by U964 in USB memory and contact the service support .
F000	Communication error between main PWB and operation PWB	Operation PWB: Replace the operation PWB .
F010	Main PWB checksum error	Main PWB: 1. Turn the main power swtch off and after 5 seconds, then turn power on. 2. If not corrected, replace the main PWB .
F040	Communication error between Main PWB and Print engine	Main PWB: 1. Turn the main power swtch off and after 5 seconds, then turn power on. 2. Repair or replace the wire from the engine PWB, that may be grounded. (Check short-circuit between 5V and 3.3V.) 3. Check that the FCC wire connecting between the main PWB (YC3) and the engine PWB (YC46) is normal and, if necessary, re-insert.Or, replace the FCC wire. 4. If not corrected, replace the main PWB .
		Engine PWB: 1. Check the engine software and upgrade to the latest, if necessary. 2. Replace the engine PWB .
		HDD: Replace the HDD .
F041	Communication error between Main PWB and Scanner engine	Main PWB: 1. Turn the main power swtch off and after 5 seconds, then turn power on. 2. Check that the wires between the main PWB and the ISC PWB are normal. 3. If not corrected, replace the main PWB .I
F041	Communication error between Main PWB and Scanner engine	SC PWB: Replace the ISC PWB.
F050	Print engine ROM checksum error	Engine software: Install the latest engine software.
F050	Print engine ROM checksum error	Engine PWB: 1. Turn the main power swtch off and after 5 seconds, then turn power on. 2. Confirm that the EEPROM has been properly installed. 3. If not corrected, Replace the engine PWB .
F051	Scanner engine ROM checksum error	Scanner software: Install the latest scanner software.
F051	Scanner engine ROM checksum error	ISC PWB: 1. Turn the main power swtch off and after 5 seconds, then turn power on. 2. Confirm that the EEPROM has been properly installed. 3. If not corrected, Replace the ISC PWB.
F278	Power supply in drive system error	The main power switch was turned off before the power switch is pressed. Shutdown due to a power failure: Turn the main power swtch off and after 5 seconds, then turn power on. (Before turning power off, verify that the power key has been pressed and the power indicator has gone off, then switch the main power switch.)

* Yorum eklemek için Üye Girişi yapınız.