Code: A0-01
Description:
PCU PWB ROM error
Causes:
The firmware version-up is not completed properly by interruption of the power during the version-up operation, etc. ROM trouble.
Remedy:
Use SIM49-1 to perform the version-up procedure again. Replace the ROM.
Code: A0-02
Description:
SCU PWB ROM error
Causes:
The firmware version-up is not completed properly by interruption of the power during the version-up operation, etc. ROM trouble.
Remedy:
Use SIM49-1 to perform the version-up procedure again. Replace the ROM.
Code: A0-04
Description:
ACU PWB ROM error (when scanner expansion kit is installed)
Causes:
The firmware update is failed because of turning OFF the power during the firmware update operation, etc. ROM trouble.
Remedy:
Use SIM49-1 to execute update of the firmware. Replace the ROM.
Code: A0-10
Description:
MFP PWB ROM error
Causes:
Firmware combination error between the MFP and the image ROM (color correction ROM).
Remedy:
Upgrade the firmware versions of the MFP and the image ROM (color correction ROM).
Code: A0-11
Description:
Firmware version inconsistency (MFP - PCU)
Causes:
Firmware combination error between the MFP and the PCU.
Remedy:
Check the combination between the MFP and the PCU.
Code: A0-12
Description:
Firmware version inconsistency (MFP - SCU)
Causes:
Firmware combination error between the MFP and the SCU.
Remedy:
Check the combination between the MFP and the SCU.
Code: A0-15
Description:
DSK BOOT version disagreement
Causes:
Firmware combination error between the DSK and the BOOT.
Remedy:
Check the combination between the DSK and the BOOT.
Code: A0-20
Description:
Conflict firmware and EEPROM data version (MFP)
Causes:
Inconsistency between the MFP firmware version and the EEPROM data version.
Remedy:
Check the combination of the firmware.
Code: A0-21
Description:
Conflict firmware and EEPROM data version (PCU)
Causes:
Inconsistency between the PCU firmware version and the EEPROM data version.
Remedy:
Check the combination of the firmware.
Code: A0-22
Description:
Conflict firmware and EEPROM data version (SCU)
Causes:
Inconsistency between the SCU firmware version and the EEPROM data version.
Remedy:
Check the combination of the firmware.
Code: C1-10
Description:
Main charger trouble
Causes:
The main charger unit is not installed properly. There is an abnormality in the main charger unit. Disconnection of the high voltage PWB connector. MC/DV high voltage PWB trouble. PCU PWB trouble
Remedy:
Check the output of the main charger with SIM8-2. Check disconnection of the main charger./Replace. Check disconnection of the high voltage PWB connector./Replace. Replace the MC/DV high voltage PWB. Replace the PCU PWB.
Code: E6-10
Description:
DSPF (CIS) shading error (Black correction)
Causes:
Installation error of the CIS unit harness. CIS unit trouble. DSPF PWB trouble.
Remedy:
Check the installing state of the harness to the CIS unit. Check the CIS unit. Check the DSPF PWB.
Code: E6-11
Description:
DSPF (CIS) shading error (White correction
Causes:
Installation error of the CIS unit harness. Copy lamp lighting trouble. Dirt on the reference white plate. CIS unit trouble. DSPF PWB trouble. Shading adjustment error
Remedy:
Check the installing state of the harness the CIS unit. Clean the reference white plate. Check the CIS unit. Check the DSPF PWB.
Code: E6-14
Description:
CIS-ASIC error
Causes:
DSPF PWB trouble.
Remedy:
Replace the DSPF PWB.
Code: E7-01
Description:
MFP image data error
Causes:
Image data transfer error in the MFP PWB. MFP PWB trouble.
Remedy:
Check connection of the connector and the harness of the MFP PWB. Replace the MFP PWB.
Code: E7-03
Description:
HDD trouble
Causes:
Connector, harness connection trouble in the MFP PWB and HDD. HDD error file management area data abnormality (FAT breakage). MFP PWB trouble.
Remedy:
Check connection of the connector and the harness of the MFP PWB and HDD. Use SIM62-2,3 to check read/write operations of the HDD. Replace the HDD. Replace the MFP PWB.

Code: E7-04
Description:
HDD-ASIC error
Causes:
HDD-ASIC trouble. An error occurs in the HDD-ASIC self test when booting.
Remedy:
Replace the MFP PWB.
Code: E7-05
Description:
Standard/Extension memory R/W error (MFP PWB) (Local memory)
Causes:
Improper insertion of the memory. Garbled memory data. The memory capacity is not the specified level.
Remedy:
Check insertion of the memory. Use SIM60-1 to check the read/write operations of the memory. Replace the expansion memory. Replace the MFP PWB.
Code: E7-06
Description:
Image data decode error
Causes:
Compressed image data abnormality. HDD connection trouble when HDD is installed. Image data compression/transfer data garble. MFP PWB trouble.
Remedy:
If the job at an occurrence of an error is a FAX job, check the FAX PWB. Check connection of the MFPC PWB and the HDD. Replace the MFPC PWB.
Code: E7-08
Description:
MFP memory compatibility error (MFP PWB) (Local memory)
Causes:
A DIMM of different specifications is installed to the MFP memory slot. DIMM trouble.
Remedy:
Check the installed DIMM. Replace the DIMM.
Code: E7-09
Description:
Standard/Extension memory size (MFP PWB) (Local memory)
Causes:
A DIMM which is not 512MB is inserted. DIMM trouble. Insufficient memory size.
Remedy:
Replace the DIMM.
Code: E7-10
Description:
Shading error (Black correction)
Causes:
Abnormality in the CCD black scan level when the scanner lamp is turned OFF. Improper installation of the harness to the CCD unit. CCD unit abnormality. SCU PWB abnormality.
Remedy:
Check connection of the harness to the CCD unit. Check the CCD unit. Check the SCU PWB.
Code: E7-11
Description:
Shading error (White correction)
Causes:
Abnormality in the CCD white reference plate scan level when the scanner lamp is turned ON. Improper installation of the harness to the CCD unit. Dirt on the mirror, lens, and the reference white plate. Scanner lamp lighting trouble. CCD unit abnormality. SCU PWB abnormality.
Remedy:
Check connection of the harness to the CCD unit. Check connection of the harness to the scanner lamp unit. Clean the mirror, the lens, and the reference white plate. Check the CCD unit. Check the SCU PWB.
Code: E7-14
Description:
CCD-ASIC error
Causes:
SCU PWB trouble.
Remedy:
Check the SCU PWB. Replace the SCU PWB.
Code: E7-20
Description:
LSU laser detection error
Causes:
Optical axis shift. Reduced laser power, lighting error, laser diode trouble. Harness and connector trouble between the LD/BD PWB and the LSU control PWB.
Remedy:
Use SIM61-1 to check the operation of the LSU. Check the PWB and connection of the harness in the LSU. Replace the LSU.
Code: E7-21
Description:
LSU laser deterioration trouble
Causes:
Power reduction due to laser deterioration. Harness and connector disconnection/insertion trouble between the LD PWB and the LSU control PWB.
Remedy:
Use SIM61-1 to check the operation of the LSU. Check the PWB and connection of the harness in the LSU. Replace the LSU.
Code: E7-28
Description:
LSU-PCU connection error
Causes:
Communication error between the CPU in the PCU PWB and the LSU control ASIC. Improper connection of the communication connector between the PCU PWB and the LSU control PWB (interface PWB). Harness trouble between the PCU PWB and the LSU control PWB (interface PWB) PCU PWB or LSU control PWB (interface PWB) trouble
Remedy:
Check connection of the connector and the harness between the PCU PWB and the LSU control PWB (interface PWB). Replace the LSU control PWB. Replace the PCU PWB.
Code: E7-29
Description:
LSU ASIC frequency error
Causes:
Oscillation abnormality of the external oscillator and the internal oscillating circuit used in the LSU ASIC. LSU ASIC abnormality on the LSU ASIC PWB.
Remedy:
Replace the LSU control PWB.
Code: E7-31
Description:
MFP Flash memory access error
Causes:
Read/write error for the MFP Flash memory Target data • Address book data • Part of the key operator program • Copy job program • Part of the user authentication data • Sender record, etc. MFP Flash memory error MFP Flash memory contact error Malfunctions caused by noises Saved data are garbled.
Remedy:
Check the following data for any abnormality. If there is any abnormality, reset and register the content. • Part of the key operator program • Copy job program • Part of the user authentication data • Image send series registration data (Sender record) Replace the MFP PWB. When the main power is turned OFF/ON in a machine without HDD installed, if an error occurs again, execute SIM62-01. If the trouble is not canceled by this procedure, replace the MFP PWB.
Code: E7-42
Description:
Data error (ACRE ASIC)
Causes:
Image transfer trouble.
Remedy:
Check the connection state of the ACRE ASIC PWB connector. Replace the ACRE ASIC PWB.
Code: E7-46
Description:
Decode error (ACRE ASIC)
Causes:
Compression data abnormality. Garbled data are produced in image compression/ transmission. ACRE ASIC PWB trouble.
Remedy:
Check the installation state of the PWB. Check connection of the ACRE ASIC PWB. Replace the ACRE ASIC PWB.
Code: E7-48
Description:
Memory error (ACRE ASIC)
Causes:
DIMM trouble, memory slot trouble. DIMM insertion trouble, different DIMM inserted.
Remedy:
DIMM trouble. Replace the PWB.

Code: E7-49
Description:
Water Mark data error
Causes:
Watermark data trouble
Remedy:
Use SIM49-5 to upload the watermark data. Replace the HDD.
Code: E7-50
Description:
Engine connection trouble
Causes:
A PWB, or firmware, or LSU which is not supported by the machine specifications is detected in the PCU PWB. PCU PWB trouble. LSU trouble.
Remedy:
Check the kind and the version of the firmware. Check the LSU, and replace it if necessary. Check the PCU PWB, and replace it if necessary.
Code: E7-55
Description:
PWB information sum error (Engine detection)
Causes:
PCU EEPROM sum check error. PCU EEPROM trouble. PCU EEPROM contact trouble. Malfunction due to noises
Remedy:
Replace the PCU PWB. Replace the PCU EEPROM.
Code: E7-60
Description:
Combination error between the MFP PWB and other PWB, firmware
Causes:
A PWB or firmware which is not supported by the machine specifications is detected in the MFP PWB. MFP PWB trouble. The PWB/firmware which is not supported by the machine specifications is connected.
Remedy:
Check the kind and the version of the firmware. Check the MFP PWB, and replace it if necessary.
Code: E7-61
Description:
Combination error between the MFP PWB and the PCU PWB
Causes:
Combination error between the MFP PWB and the PCU PWB. MFP PWB trouble. PCU PWB trouble.
Remedy:
Check the combination between the MFP PWB and the PCU PWB. Replace the MFP PWB. Replace the PCU PWB.
Code: E7-65
Description:
MFP EEPROM sum check error
Causes:
MFP PWB EEPROM device breakdown. Contact trouble of the MFP EEPROM device. Malfunction due to noises.
Remedy:
Replace the MFP PWB. Replace the MFP PWB EEPROM.
Code: E7-80
Description:
MFP-SCU PWB communication error
Causes:
SCU PWB connector connection trouble. SCU PWB - MFP PWB connection trouble. SCU PWB mother board connection trouble. SCU PWB trouble. MFP PWB trouble. Mother board trouble.
Remedy:
Check connection of the SCU PWB, the MFP PWB, and the mother board. Check the ground. Replace the SCU PWB. Replace the MFP PWB. Replace the mother board.
Code: E7-90
Description:
MFP - PCU PWB communication error
Causes:
PCU PWB connector connection trouble. PCU PWB - MFP PWB connection trouble. PCU PWB trouble. MFP PWB trouble. Mother board trouble.
Remedy:
Check connection of the PCU PWB, the MFP PWB, and the mother board. Check the ground. Replace the PCU PWB. Replace the MFP PWB. Replace the mother board.
Code: EE-EC
Description:
Automatic toner density adjustment error (Sampling level 67-94/106-154)
The sampling level in the automatic toner density adjustment is outside of 100.
Causes:
Toner density sensor trouble. Developing unit trouble. PCU PWB trouble.
Remedy:
Replace the toner density sensor. Replace the developing unit. Replace the PCU PWB.
Code: EE-EL
Description:
Automatic toner density adjustment error (Over toner)
The sampling level in the automatic toner density adjustment is 66 or less or the control voltage is 198 or above.
Causes:
Toner density sensor trouble. Charging voltage/ developing voltage trouble, toner density trouble, or developing unit trouble. PCU PWB trouble.
Remedy:
Replace the toner density sensor. Replace the developing unit. Replace the PCU PWB.
Code: EE-EU
Description:
Automatic toner density adjustment error (Under toner)
The sampling level in the automatic toner density adjustment is 155 or above or the control voltage is 48 or less.
Causes:
Toner density sensor trouble. Charging voltage/ developing voltage trouble, toner density trouble, or developing unit trouble. PCU PWB trouble.
Remedy:
Replace the toner density sensor. Replace the developing unit. Replace the PCU PWB.
Code: F1-00
Description:
Finisher - PCU PWB communication error
Causes:
Connection trouble of the connector and the harness between the finisher and the PCU PWB. Finisher control PWB trouble. PCU PWB trouble. Strong external noises.
Remedy:
Check the connector and the harness between the finisher and the PCU PWB. Replace the finisher control PWB. Replace the PCU PWB.
Code: F1-03
Description:
Finisher paper exit roller lifting operation trouble
Causes:
Finisher paper exit roller lift motor trouble. Harness and connector connection trouble. Home position sensor trouble. Finisher control PWB trouble.
Remedy:
Use SIM3-3 to check the operation of the paper exit roller lift motor. Replace the paper exit roller lift motor. Check connection of the connector and the harness. Replace the home position sensor. Replace the finisher control PWB.
Code: F1-08
Description:
Stapler shift trouble
Causes:
Stapler shift motor trouble. Finisher control PWB trouble. Home position sensor trouble.
Remedy:
Use SIM3-3 to check the operation of the stapler shift motor. Replace the stapler shift motor. Check connection of the connector and the harness. Replace the home position sensor. Replace the finisher control PWB.
Code: F1-10
Description:
Staple operation trouble
Causes:
Staple motor trouble. Finisher control PWB trouble. Home position sensor trouble.
Remedy:
Use SIM3-3 to check the operation of the staple motor. Replace the staple motor. Check connection of the connector and the harness. Replace the home position sensor. Replace the finisher control PWB.
Code: F1-11
Description:
Finisher grip operation trouble
Causes:
Grip motor trouble. Finisher control PWB trouble. Grip arm trouble. Home position sensor trouble.
Remedy:
Use SIM3-3 to check the operation of the grip motor. Replace the grip motor. Replace the finisher control PWB. Replace the grip arm. Replace the home position sensor.

Code: F1-15
Description:
Finisher paper exit tray lift operation trouble
Lift motor trouble.
Causes:
Paper exit tray lift motor trouble. Finisher control PWB trouble.
Remedy:
Use SIM3-3 to check the operation of the paper exit tray lift motor. Replace the finisher control PWB. Replace the paper exit tray lift motor.
Code: F1-19
Description:
Finisher alignment operation trouble F
Causes:
Finisher paper alignment motor lock. Motor speed abnormality. Over-current to the motor. Finisher control PWB trouble.
Remedy:
Use SIM3-3 to check the operation of the paper alignment motor F. Replace the finisher control PWB. Replace the paper alignment motor F.
Code: F1-20
Description:
Finisher alignment operation trouble R
Causes:
Finisher paper alignment motor lock. Motor speed abnormality. Over-current to the motor. Finisher control PWB trouble.
Remedy:
Use SIM3-3 to check the operation of the paper alignment motor R. Replace the finisher control PWB. Replace the paper alignment motor R.
Code: F1-21
Description:
Finisher fan trouble
Causes:
Finisher fan motor trouble. Finisher control PWB trouble. Harness and connector connection trouble.
Remedy:
Use SIM3-3 to check the operation of the fan motor. Check connection between the finisher control PWB and the fan. Replace the fan. Replace the finisher control PWB.
Code: F1-22
Description:
Finisher assist motor trouble
Causes:
Motor harness short/open trouble. Control PWB trouble. Connection harness/connector connection trouble
Remedy:
Check the operation of the rear edge assist motor with SIM3-3. Check connection from the control PWB to the motor. Replace the control PWB.
Code: F1-23
Description:
Finisher shutter trouble
Causes:
Motor lock trouble. Control PWB trouble, home position sensor trouble. Connection harness/connector connection trouble.
Remedy:
Check the operation of the rear edge assist motor with SIM3-3. Check connection from the control PWB to the motor. Replace the control PWB.
Code: F1-31
Description:
Saddle paper folding trouble
Causes:
Motor lock trouble. Control PWB trouble, home position sensor trouble. Connection harness/connector connection trouble.
Remedy:
Check the operation of the saddle motor with SIM3-3. Check connection from the control PWB to the motor. Replace the control PWB. Replace the sensor.
Code: F1-32
Description:
Finisher - Punch unit communication error
Causes:
Connector/harness connection trouble or disconnection between the finisher and the punch unit. Finisher control PWB trouble. PCU PWB trouble. Malfunction due to noises. The punch unit is in the adjustment mode.
Remedy:
Check the connector and the harness between the finisher and the punch unit. Replace the finisher control PWB. Replace the PCU PWB. Cancel the adjustment mode of the punch unit.

Code: F1-33
Description:
Punch unit shift operation trouble
Causes:
Punch shift motor trouble. Finisher control PWB trouble. Home position sensor trouble. Harness and connector connection trouble.
Remedy:
Use SIM3-3 to check the operation of the punch shifting. Replace the punch shift motor. Replace the finisher control PWB. Replace the home position sensor. Check connection of the connectors and the harness.
Code: F1-34
Description:
Punch operation trouble
Causes:
Punch motor trouble. Finisher control PWB trouble. Home position sensor trouble. Harness and connector connection trouble.
Remedy:
Check the punch operation. Replace the punch motor. Replace the finisher control PWB. Replace the home position sensor. Check connection of the connectors and the harness.
Code: F1-36
Description:
Punch paper edge detection error
Causes:
Punch paper edge sensor trouble. Harness disconnection. Finisher control PWB trouble. Punch control PWB trouble.
Remedy:
Use SIM3-2 to check the operation of the sensor. Replace the punch paper edge sensor. Replace the finisher control PWB. Replace the punch control PWB.
Code: F1-37
Description:
Finisher data backup RAM error
Causes:
Finisher control PWB trouble. Malfunction due to noises
Remedy:
Replace the finisher control PWB. Readjust the finisher. (Use SIM3-10,Finisher control PWB DIP SW adjustment.)
Code: F1-38
Description:
Punch data backup RAM error
Causes:
Punch control PWB trouble. Malfunction due to noises
Remedy:
Replace the punch control PWB. Set the punch unit specifications, and adjust the sensor. (Punch unit control PWB DIP SW adjustment.)
Code: F1-39
Description:
Punch paper dust sensor error
Causes:
Punch dust sensor trouble. Harness and connector connection trouble. Finisher control PWB trouble. Punch unit control PWB trouble.
Remedy:
Use SIM3-2 to check the operation of the sensor. Check connection of the connectors and the harness. Replace the punch dust sensor. Replace the finisher control PWB. Replace the punch unit control PWB.
Code: F1-41
Description:
Saddle paper positioning operation trouble
Abnormality in the folding positioning guide motor in the saddle section.
Causes:
Saddle paper positioning guide drive motor trouble. Finisher control PWB trouble. Home position sensor trouble. Harness and connector connection trouble.
Remedy:
Use SIM3-3 to check the operation of the saddle paper positioning motor. Check connection from the control PWB to the motor. Turn OFF/ON the power. Replace the control PWB. Replace the sensor.
Code: F1-43
Description:
Saddle alignment operation trouble
Causes:
Saddle alignment motor trouble. Finisher control PWB trouble. Home position sensor trouble. Harness and connector connection trouble.
Remedy:
Use SIM3-3 to check the operation of the Saddle alignment motor (FSPAM). Check connection from the control PWB to the motor. Turn OFF/ON the power. Replace the control PWB. Replace the sensor.
Code: F1-45
Description:
Saddle staple trouble
Abnormality of the staple unit drive motor in the saddle section.
Causes:
Saddle staple motor trouble. Finisher control PWB trouble. Home position sensor trouble. Harness and connector connection trouble.
Remedy:
Use SIM3-3 to check the operation of the saddle staple motor. Check connection from the control PWB to the motor. Turn OFF/ON the power. Replace the control PWB. Replace the sensor.
Code: F1-47
Description:
Saddle paper transport motor trouble
Abnormality in the drive roller oscillation motor in the finisher saddle transport section.
Causes:
Saddle paper transport motor trouble. Finisher control PWB trouble. Harness and connector connection trouble. Fuse blown (24V line).
Remedy:
Use SIM3-3 to check the operation of the saddle paper transport motor. Check connection from the control PWB to the motor. Replace the control PWB. Replace the sensor.
Code: F1-50
Description:
Main unit - Finisher combination error
Causes:
The finisher which is not supported by the main unit model is installed. Finisher control PWB trouble.
Remedy:
Install a proper finisher. Replace the finisher control PWB.
Code: F2-31
Description:
Image density sensor trouble (OPC drum surface reflection ratio abnormality)
Causes:
Before execution of the process control, a document is scanned by the image density sensor and the sensor gain is adjusted so that the output is at a fixed level. Though, however, the sensor gain is changed, the output does not become a fixed level. Image density sensor trouble Connection trouble of the harness between the PCU PWB and the image density sensor Image density sensor dirt
Remedy:
Use SIM44-2 to execute the gain adjustment of the process control sensor. When there are some troubles, "Error" is displayed. Check the sensor and the harness at that time.
Code: F2-39
Description:
Process thermistor trouble
Causes:
Process thermistor trouble. Process thermistor harness connection trouble. PCU PWB trouble
Remedy:
Replace the process thermistor. Check connection of the harness and the connector. Replace the PCU PWB.
Code: F2-40
Description:
Toner density sensor trouble
Causes:
Toner density sensor output abnormality (Sample level 25 or less, or 201 or above) Connection trouble of the connector and the harness. Developing unit trouble. PCU PWB trouble.
Remedy:
Replace the toner density sensor. Check connection of the connector and the harness. Replace the developing unit. Replace the PCU PWB.
Code: F2-58
Description:
Process humidity sensor trouble
Causes:
Process humidity sensor trouble. Harness and connector connection trouble. PCU PWB trouble.
Remedy:
Replace the process humidity sensor. Check connection of the connectors and the harness. Replace the PCU PWB.
Code: F2-64
Description:
Toner supply operation trouble
Causes:
Toner clutch trouble. Toner density sensor trouble. Connector/harness trouble. PCU PWB trouble. Toner cartridge trouble. Developing unit trouble.
Remedy:
Replace the toner clutch. Replace the toner density sensor. Connector and harness check. Replace the PCU PWB. Replace the toner cartridge. Replace the developing unit.

Code: F2-70
Description:
Improper toner cartridge detection
Causes:
An improper toner cartridge is inserted. (The main unit detects a toner cartridge of a different specification.) Toner cartridge trouble. PCU PWB trouble
Remedy:
Replace the toner cartridge. Replace the PCU PWB.
Code: F2-74
Description:
Toner cartridge CRUM error
Causes:
Toner cartridge (CRUM) trouble. PCU PWB trouble. Connector/harness trouble.
Remedy:
Replace the toner cartridge. Replace the PCU PWB. Connector and harness check.