Code: L4-43
Description:
Paper exit cooling fan R trouble
Causes:
Fan trouble. PCU PWB trouble. Connection trouble of the connector and the harness.
Remedy:
Check that the fan is rotating after turning ON the power. Replace the fan. Replace the PCU PWB. Check the connector and the harness. Use SIM6-2 to check that the fan is actually rotating.

Code: L4-44
Description:
Power cooling fan 2 trouble
Causes:
Harness, connector trouble between the PCU PWB and the fan motor. PCU PWB trouble. Fan motor trouble.
Remedy:
Use Sim6-2 to check the operation of the fan motor. Check the harness and the connector between the PCU PWB and the fan motor. Replace the PCU PWB. Replace the fan motor.
Code: L4-50
Description:
Process fan 1 trouble
Causes:
Process fan trouble. PCU PWB trouble. Connection trouble of the connector and the harness.
Remedy:
Check that the fan is rotating after turning ON the power. Replace the process fan. Replace the PCU PWB. Check connection of the connector and the harness.
Code: L4-51
Description:
Process fan 2 trouble
Causes:
Process fan trouble. PCU PWB trouble. Connection trouble of the connector and the harness.
Remedy:
Check that the fan is rotating after turning ON the power. Replace the process fan. Replace the PCU PWB. Check the connector and the harness.
Code: L4-71
Description:
Process fan 2 trouble
Causes:
PCU PWB trouble
Remedy:
Replace the PCU PWB.
Code: L4-75
Description:
Paper exit motor trouble
Causes:
PCU PWB trouble. Motor trouble Connection trouble of the connector and the harness between the PCU PWB and the motor.
Remedy:
Check the connector and the harness of the PCU PWB and the motor. Replace the PCU PWB, the motor and the harness.
Code: L4-76
Description:
Reverse motor trouble
Causes:
PCU PWB trouble. Motor trouble Connection trouble of the connector and the harness between the PCU PWB and the motor.
Remedy:
Check the connector and the harness of the PCU PWB and the motor. Replace the PCU PWB, the motor and the harness.
Code: L4-77
Description:
ADU motor upper trouble
Causes:
PCU PWB trouble. Motor trouble Connection trouble of the connector and the harness between the PCU PWB and the motor.
Remedy:
Check the connector and the harness of the PCU PWB and the motor. Replace the PCU PWB, the motor and the harness.
Code: L4-78
Description:
ADU motor bottom trouble
Causes:
PCU PWB trouble. Motor trouble Connection trouble of the connector and the harness between the PCU PWB and the motor.
Remedy:
Check the connector and the harness of the PCU PWB and the motor. Replace the PCU PWB, the motor and the harness.

Code: L4-79
Description:
PS front motor trouble
Causes:
PCU PWB trouble. Motor trouble Connection trouble of the connector and the harness between the PCU PWB and the motor.
Remedy:
Check the connector and the harness of the PCU PWB and the motor. Replace the PCU PWB, the motor and the harness.
Code: L6-10
Description:
Polygon motor trouble
Causes:
Polygon motor trouble. LSUcnt PWB trouble. LD PWB trouble. Connection trouble of the connector and the harness.
Remedy:
Use SIM61-1 to check the operation of the polygon motor. Check connection of the connector and the harness. Replace the LSU. Replace the LSUcnt PWB.
Code: L8-01
Description:
Full wave signal detection error
Causes:
PCU PWB trouble. Power unit trouble. Connection trouble of the connector and the harness.
Remedy:
Replace the PCU PWB. Replace the power unit. Check connection of the connector and the harness.
Code: L8-02
Description:
Full wave signal error
Causes:
An abnormality in the full wave signal frequency is detected (The frequency is detected as 65Hz or above, or 45Hz or less) PCU PWB trouble. Power unit trouble. Connection trouble of the connector and the harness. Power frequency wave form abnormality
Remedy:
Replace the PCU PWB. Replace the power unit. Check connection of the connector and the harness. Check the power wave form.
Code: L8-03
Description:
Abnormal input voltage error
Causes:
Detects abnormal input voltage
Remedy:
Check the connection of the AC monitor PWB, harness, connector. Check the PCU PWB and replace if necessary.
Code: L8-20
Description:
Communication error of power controller PWB
Causes:
SCN-MFP PWB trouble.
Remedy:
Check the ground of the main unit. Replace the SCN-MFP PWB.
Code: PC--
Description:
Personal counter not detected
Causes:
The personal counter is not installed. The personal counter is not detected. SCN-MFP PWB trouble.
Remedy:
Check connection of the connectors and the harness. Replace the SCN-MFP PWB.
Code: U1-01
Description:
Battery trouble
Causes:
1) Battery life 2) Battery circuit abnormality
Remedy:
Check to confirm that the battery voltage is about 2.5V or above. Replace the battery.

Code: U2-00
Description:
MFP EEPROM read/write error
Causes:
EEPROM device trouble EEPROM device contact trouble Device access trouble by the noise
Remedy:
Replace the SCN-MFP PWB EEPROM. Replace the SCN-MFP PWB. (Refer to the pages on the necessary works after replacing the SCN-MFP PWB in the Service Manual, and perform the works.) Check that the EEPROM device is connected correctly.
Code: U2-05
Description:
Account data error
Causes:
The certification database table in the HDD is broken. The certification database table is rebuilt after the broken certification database table is detected and the main unit is restarted. This error can be recognized only by the SIM22-4 which registers the error in the error records. When this error is occurred frequently, the following devices are defective. - HDD - SCN-MFP PWB
Remedy:
Check or replace the HDD. Check or replace the SCN-MFP PWB. Perform the operation by referring the "Necessary works and procedures when the HDD and the SCNMFP PWB are replaced". When this error is not occurred frequently, the above operations should not be done.
Code: U2-11
Description:
SCN-MFP PWB EEPROM counter check sum error
Causes:
SCN-MFP PWB EEPROM trouble EEPROM socket contact trouble SCN-MFP PWB trouble Strong external noises.
Remedy:
Use SIM16 to cancel the error. (The previous writing data (about the latest 8 sheets) are written into the EEPROM.) Replace the SCN-MFP PWB. (Refer to the pages on the necessary works after replacing the SCN-MFP PWB in the Service Manual, and perform the works.)
Code: U2-30
Description:
SCN-MFP PWB and PCU PWB manufacturing No. data inconsistency
Causes:
When replacing the SCN-MFP PWB or the MFPC PWB, the EEPROM which was mounted on the PWB before replacement is not mounted on the new PWB. SCN-MFP PWB trouble PCU PWB trouble
Remedy:
Check that the EEPROM is properly set. Check to confirm that the EEPROM which was mounted on the PWB before replacement is mounted on the new PWB. Replace the SCN-MFP PWB. (Refer to the pages on the necessary works after replacing the SCN-MFP PWB in the Service Manual, and perform the works.) Replace the PCU PWB.
Code: U2-40
Description:
mSATA SSD system storage data partition error
Causes:
A file error occurs in the mSATA SSD system storage data partition.
Remedy:
Turn OFF/ON the power, and the backup data in the HDD are written into the mSATA SSD and the machine is automatically booted.
Code: U2-41
Description:
HDD versatile partition error
Causes:
A file error occurs in the HDD system saved data area, disabling backup of the saved file of the machine adjustment values in the mSATA SSD. HDD trouble MFPC PWB trouble
Remedy:
Backup the data by following the procedure for the trouble which can be released by turning OFF and ON the power of the main unit, and format the HDD by SIM62. Or, replace the HDD and perform SIM16.
Code: U2-42
Description:
Machine adjustment data lost error
Causes:
The system data partition of mSATA SSD and the versatile partition for the backup HDD are broken.
Remedy:
Backup the data by following the procedure for the mSATA SSD and the HDD breakage and format the HDD by SIM62. Or, replace the HDD and perform SIM16. Perform the mechanical adjustment because the mechanical adjustment values are formatted.
Code: U2-50
Description:
HDD user authentication data check sum error
Causes:
HDD trouble SCN-MFP PWB trouble Strong external noises.
Remedy:
Check the data related to the check sum error (address book, image send system registration data (senders record, meta data)) and register again. Use SIM16 to cancel the U2 trouble. Replace the HDD. Replace the SCN-MFP PWB. (Refer to the pages on the necessary works after replacing the HDD and the SCN-MFP PWB in the Service Manual, and perform the works.)

Code: U2-60
Description:
Watermark check error
Causes:
Watermark data trouble mSATA SSD trouble SCN-MFP PWB trouble
Remedy:
Use SIM16 to cancel the U2 trouble. Use SIM49-5 to install the watermark data. Replace the mSATA SSD. Replace the SCN-MFP PWB. (Refer to the pages on the necessary works after replacing the HDD and the SCN-MFP PWB in the Service Manual, and perform the works.)
Code: U2-70
Description:
OCR dictionary check error
Causes:
OCR dictionary error
Remedy:
Use Sim49-6 to install the OCR dictionary data
Code: U2-80
Description:
SCN-MFP PWB EEPROM read/write error
Causes:
EEPROM trouble SCN-MFP PWB EEPROM access circuit trouble
Remedy:
Check that the EEPROM is attached correctly. Take notes of the counter data and the adjustment values to prevent from deleting the data. (When the printer option is attached, take notes of the adjustment values by SIM22-01.) Replace the PCU PWB. Release this error with SIM16.
Code: U2-81
Description:
SCN-MFP PWB EEPROM check sum error
Causes:
EEPROM trouble SCN-MFP PWB EEPROM access circuit trouble
Remedy:
Check that the EEPROM is attached correctly. Take notes of the counter data and the adjustment values to prevent from deleting the data. (When the printer option is attached, take notes of the adjustment values by SIM22-01.) Replace the PCU PWB. Release this error with SIM16.
Code: U2-90
Description:
PCU PWB EEPROM read/write error
Causes:
EEPROM trouble Installation of non-initialized EEPROM. PCU PWB EEPROM access circuit trouble
Remedy:
Check that the EEPROM is attached correctly. Check that the 256kBit EEPROM is attached. Take notes of the counter data and the adjustment values to prevent from deleting the data. (When the printer option is attached, take notes of the adjustment values by SIM22-01.) Replace the PCU PWB. Release this error with SIM16.
Code: U2-91
Description:
PCU PWB EEPROM check sum error
Causes:
PCU PWB EEPROM trouble PCU PWB trouble EEPROM socket contact trouble
Remedy:
Check that the EEPROM is attached correctly. Take notes of the counter data and the adjustment values to prevent from deleting the data. (When the printer option is attached, take notes of the adjustment values by SIM22-01.) Replace the PCU PWB. Release this error with SIM16.
Code: U6-00
Description:
Desk communication trouble
Causes:
Connection trouble or cut-line of the connector and the harness. Desk control PWB trouble Control (PCU) PWB trouble
Remedy:
Check the control PWB. Check connection of the connector and the harness on the communication line. Turn OFF and ON the main unit.
Code: U6-01
Description:
Desk tray 1 lift motor trouble
Causes:
DLUD1 sensor trouble Desk casette 1 lift up motor trouble Connection trouble of the connector and the harness between the paper feed unit, Desk control PWB, and Lift up unit.
Remedy:
Check the DLUD1, the DLUD1 harness and the connector of the DLUD1. Check the lift up unit. Replace the desk control PWB. Release this error with SIM15.
Code: U6-02
Description:
Desk tray 2 lift motor trouble
Causes:
DLUD2 sensor trouble Desk casette 2 lift up motor trouble Connection trouble of the connector and the harness between the paper feed unit, Desk control PWB, and Lift up unit.
Remedy:
Check the DLUD2, the DLUD2 harness and the connector of the DLUD2. Check the lift up unit. Replace the desk control PWB. Release this error with SIM15.
Code: U6-09
Description:
LCC lift trouble
Causes:
sensor trouble LCC control PWB trouble. gear is damaged. Lift up motor trouble
Remedy:
Use SIM4-2 and SIM4-3 to check the operation of the LCC sensor and lift motor. Use SIM15 to cancel the error.
Code: U6-10
Description:
Desk transport motor trouble
Causes:
Motor lock. Motor rotation error. Over current to the motor. Desk PWB trouble.
Remedy:
Use SIM4-3 to check the operation of the desk transport motor. Replace the desk control PWB. Replace the desk paper feed motor.
Code: U6-20
Description:
LCC control PWB - PCU PWB communication error
Causes:
Connection trouble of the harness and the connector between the machine and the LCC and those of the LCC control PWB. LCC control PWB trouble PCU PWB trouble Malfunction due to noises.
Remedy:
Cancel the error by turning OFF/ON the power. Check the connection of the harness and the connector between the machine and the LCC. Check the LCC control PWB, and replace if necessary. Check the PCU PWB, and replace if necessary.
Code: U6-21
Description:
LCC transport motor trouble
Causes:
Motor lock. Motor rotation error. Over current to the motor. LCC control PWB trouble.
Remedy:
Use SIM4-3 to check the operation of the LCC transport motor. Check the LCC control PWB, and replace if necessary.
Code: U6-22
Description:
LCC 24V power trouble
Causes:
Connection trouble of the harness and the connector. LCC control PWB trouble/A3 2nd LCT control PWB trouble. Machine power unit trouble
Remedy:
Check connection of the connector and the harness Check the 24 voltage at the machine power unit and the LCC control PWB/A3 2nd LCT control PWB.
Code: U6-23
Description:
LCC Tray descending trouble (reverse winding detection)
Causes:
Reverse winding detection switch ON Reverse winding of the wire Reverse winding detection switch trouble Connector and harness connection trouble LCC control PWB trouble
Remedy:
Check the wire Replace reverse winding switch Check connection of the connector and the harness Replace the LCC control PWB Use Sim4-3 to check the motor operation
Code: U6-50
Description:
Desk - Main unit combination trouble
Causes:
Improper combination between the main unit and the Desk. Desk control PWB trouble.
Remedy:
Install a Desk which is proper for the main unit mode. Replace the Desk control PWB.
Code: U6-51
Description:
LCC - Main unit combination trouble
Causes:
Improper combination between the main unit and the LCC. Desk control PWB trouble.
Remedy:
Install a LCC which is proper for the main unit mode. Replace the LCC control PWB.
Code: U6-52
Description:
Desk connection error
Causes:
Connection failure between the machine and paper feed tray 2 (desk unit) PCU PWB trouble.
Remedy:
Check connection of the connector and the harness. Replace the PCU PWB.
Code: U6-54
Description:
Option installation combination trouble (LCC)
Causes:
firmware version is inconsistency
Remedy:
update latest firmware version
Code: U6-55
Description:
Option installation combination trouble (DESK)
Causes:
firmware version is inconsistency
Remedy:
update latest firmware version
Code: U7-50
Description:
SCN-MFP PWB - Vendor machine communication error
Causes:
Improper setting of the vendor machine specifications (SIM26-3). Vendor machine trouble. SCN-MFP PWB trouble. Connector, harness connection trouble. Strong external noises.
Remedy:
Cancel the error by turning OFF/ON the power. Check the connector and the harness in the communication line. Change the specifications of the vendor machine (SIM26-3). Replace the SCN-MFP PWB.
Code: U7-51
Description:
Vendor machine error
Causes:
Serial vendor machine trouble. Connector, harness connection trouble
Remedy:
Err.XX is displayed on the operation panel of the vendor. (XX is the detail code.) Repair the vendor machine referring to the detail code. Check the connector and the harness in the communication line.
Code: U9-01
Description:
Touch panel trouble
Causes:
Harness connection trouble. SCN-MFP trouble. Touch Panel trouble.
Remedy:
Check the connector and the harness in the touch panel line (SCN MFP PWB, LVDS PWB, HOME PWB, and touch panel). Replace the SCN-MFP PWB. Replace the Touch panel.
Code: UC-02
Description:
SCAN ASIC IPD error
Causes:
SCN-MFP trouble SCAN ASIC trouble
Remedy:
Replace the SCN-MFP PWB.
Code: UC-20
Description:
SCAN ASIC DOCC error
Causes:
SCN-MFP trouble SCAN ASIC trouble
Remedy:
Replace the SCN-MFP PWB.