Code: L4-34
Description:
LSU cooling fan trouble
Causes:
When the LSU cooling fan is operated, the fan operation signal is not detected within the specified time. LSU cooling fan trouble. PCU PWB trouble. Connection trouble of the connector and the harness.
Remedy:
Use SIM6-2 to check that the fan is actually rotating. Replace the LSU cooling fan. Replace the PCU PWB. Replace the LSUcnt PWB. Check connection of the connector and the harness.
Code: L4-35
Description:
Fusing cooling fan trouble
Causes:
The fan operation signal is not detected within the specified time in the fusing cooling fan operation. Fusing cooling fan trouble. PCU PWB trouble Connection trouble of the connector and the harness.
Remedy:
Use SIM6-2 to check the rotating operation of the fan. Replace the fusing cooling fan. Replace the PCU PWB. Check connection of the connector and the harness.
Code: L4-45
Description:
Toner cooling fan trouble (Toner cooling fan 1, 2)
Causes:
When the toner cooling fan is operated, the fan operation signal is not detected within the specified time. Toner cooling fan trouble. PCU PWB trouble. Connection trouble of the connector and the harness.
Remedy:
After turning ON the power, check to confirm that the fan is rotating. Replace the toner cooling fan. Replace the PCU PWB. Check connection of the connector and the harness.
Code: L4-50
Description:
Process fan trouble
Causes:
The fan operation signal is not detected within the specified time in the process fan operation. 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: L4-56
Description:
Rear cooling fan trouble
Causes:
The fan operation signal is not detected within the specified time in the rear cooling fan operation. Rear cooling 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 rear cooling fan. Replace the PCU PWB. Check connection of the connector and the harness.
Code: L4-57
Description:
Toner cooling fan trouble (Toner cooling fan 3)
Causes:
When the toner cooling fan is operated, the fan operation signal is not detected within the specified time. Toner cooling fan trouble. PCU PWB trouble. Connection trouble of the connector and the harness.
Remedy:
After turning ON the power, check to confirm that the fan is rotating. Replace the toner cooling fan. Replace the PCU PWB. Check connection of the connector and the harness.
Code: L4-58
Description:
Ozone exhaust fan trouble
Causes:
The fan operation signal is not detected within the specified time in the ozone exhaust fan operation. Ozone exhaust 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 ozone exhaust fan. Replace the PCU PWB. Check connection of the connector and the harness.
Code: L6-10
Description:
Polygon motor trouble
Causes:
The motor does not reach the specified rpm in 7 sec after starting rotation of the polygon motor. Polygon motor trouble. LSU control 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 polygon motor. Replace the LSU. Replace the LSU control PWB.

Code: L8-01
Description:
Full wave signal detection error
Causes:
No full wave signal is detected. 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, waveform abnormality.
Remedy:
Replace the PCU PWB. Replace the power unit. Check connection of the connector and the harness. Check the power waveform.
Code: L8-20
Description:
MFP PWB - Mother board communication error
Causes:
Mother board PWB - MFPC PWB connection trouble. MFP PWB trouble. Replace the mother board.
Remedy:
Check connection between the mother board and the MFPC PWB. Check the ground of the main unit. Replace the MFPC PWB. Replace the mother board.
Code: PC--
Description:
Personal counter not detected
Causes:
The personal counter is not installed. The personal counter is not detected.
Remedy:
Check connection of the connectors and the harness. Replace the SCU PWB.
Code: U1-01
Description:
Battery trouble
Backup SRAM battery voltage fall.
Causes:
1) Battery life 2) Battery circuit abnormality
Remedy:
Check to confirm that the battery voltage is about 2.0V or above.
Code: U2-00
Description:
MFP EEPROM read/write error
Causes:
MFP PWB EEPROM trouble. EEPROM socket contact trouble. MFP PWB trouble. Strong external noises.
Remedy:
Replace the MFP PWB EEPROM. Replace the MFP PWB. Check the power environment.
Code: U2-05
Description:
HDD/MFP PWB SRAM contents inconsistency
Causes:
The HDD or the MFP PWB which differs from that before turning OFF the power is installed. HDD trouble. MFP PWB trouble.
Remedy:
Use SIM16 to cancel the error. If there is backup data (export data by device cloning), import it.
Code: U2-10
Description:
MFP PWB SRAM user authentication index check sum error
Causes:
SRAM user index information (user authentication basic data) check sum error. MFP PWB SRAM trouble. Strong external noises.
Remedy:
Use SIM16 to cancel the error. Transfer the user index information data in the HDD to the SRAM. Replace the MFP PWB.
Code: U2-11
Description:
MFP PWB EEPROM counter check sum error
Causes:
MFP PWB EEPROM trouble. EEPROM socket contact trouble. MFP PWB trouble. Strong external noises.
Remedy:
Use SIM16 to cancel the error. Replace the MFP PWB.
Code: U2-22
Description:
MFP PWB SRAM memory check sum error
Causes:
The identifier which controls the communication management table stored in the SRAM and the FAX soft switch is not detected correctly. MFP PWB SRAM trouble. MFP PWB trouble. Strong external noises.
Remedy:
Since the data of the communication management table and the FAX soft switch stored in the SRAM are initialized when an error occurs, register the deleted data again individually. Use SIM16 to cancel the error. Replace the MFP PWB.
Code: U2-23
Description:
MFP PWB SRAM memory individual data check sum error
MFP PWB SRAM memory individual data check sum error.
Causes:
The check sum value for individual data of the communication table and the sender registration does not match. MFP PWB SRAM trouble. MFP PWB trouble. Strong external noises.
Remedy:
Turn OFF/ON the power to initialize the data related to the content of check sum error. Since the registered contents are deleted, register the deleted contents again. Use SIM16 to cancel the error. Replace the MFP PWB.
Code: U2-24
Description:
MFP PWB SRAM memory user authentication counter check sum error
Causes:
MFP PWB SRAM trouble. MFP PWB trouble. Strong external noises.
Remedy:
Use SIM16 to cancel the error.
Code: U2-30
Description:
MFP PWB and PCU PWB manufacturing No. data inconsistency
Causes:
Inconsistency between the manufacturing No. saved in the PCU PWB and that in the MFP PWB. When replacing the PCU PWB or the MFP PWB, the EEPROM which was mounted on the PWB before replacement is not mounted on the new PWB. 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 MFP PWB. Replace the PCU PWB.
Code: U2-50
Description:
HDD user authentication data check sum error
Causes:
HDD trouble. MFP PWB trouble. Strong external noises.
Remedy:
Initialize the data (one-touch, group, program, etc.) related to the check sum error by turning OFF/ON the power. Since the registered contents are deleted, register the deleted contents again. Use SIM16 to cancel the error. Replace the HDD. Replace the MFP PWB.
Code: U2-60
Description:
Water Mark check error
Causes:
Watermark data trouble
Remedy:
Use SIM49-5 to upload the watermark data.
Code: U2-80
Description:
SCU PWB EEPROM read/write error
Causes:
SCU PWB EEPROM trouble. SCU PWB trouble. EEPROM socket contact trouble.
Remedy:
Replace the SCU PWB EEPROM. Replace the SCU PWB. Check contact of the EEPROM socket. Put down the counter/adjustment values in the simulation to prevent against loss of the counter data and the adjustment values. Use SIM16 to cancel the trouble.
Code: U2-81
Description:
SCU PWB EEPROM check sum error
Causes:
SCU PWB EEPROM trouble. Installation of non-initialized EEPROM. SCU PWB trouble. EEPROM socket contact trouble.
Remedy:
Replace the SCU PWB EEPROM. Replace the SCU PWB. Check contact of the EEPROM socket. Put down the counter/adjustment values in the simulation to prevent against loss of the counter data and the adjustment values. Use SIM16 to cancel the trouble.
Code: U2-90
Description:
PCU PWB EEPROM read/write error
Causes:
PCU PWB EEPROM trouble. Installation of non-initialized EEPROM. PCU PWB trouble EEPROM socket contact trouble.
Remedy:
Replace the PCU PWB EEPROM. Replace the PCU PWB. Check contact of the EEPROM socket. Put down the counter/adjustment values in the simulation to prevent against loss of the counter data and the adjustment values. Use SIM16 to cancel the trouble.
Code: U2-91
Description:
PCU PWB EEPROM check sum error
Causes:
PCU PWB EEPROM trouble. Installation of non-initialized EEPROM. PCU PWB trouble EEPROM socket contact trouble.
Remedy:
Replace the PCU PWB EEPROM. Replace the PCU PWB. Check contact of the EEPROM socket. Put down the counter/adjustment values in the simulation to prevent against loss of the counter data and the adjustment values. Use SIM16 to cancel the trouble.
Code: U5-00
Description:
Document feed unit communication error
Causes:
Connector, harness connection trouble. SCU PWB trouble. DSPF PWB trouble.
Remedy:
Turn OFF/ON the power. Check connection of the connector and the harness. Replace the SCU PWB. Replace the DSPF PWB.
Code: U5-16
Description:
Document feed unit fan trouble
Causes:
When the fan is operated, the fan operation signal is not detected within the specified time. Fan motor trouble. Connector, harness connection trouble. DSPF PWB trouble.
Remedy:
Use SIM2-3 to check that the fan is rotating. Replace the fan motor. Check connection of the connector and the harness. Replace the DSPF PWB.
Code: U5-30
Description:
Document feed unit tray lift up trouble
Causes:
When STUD is not turned ON 5 times continuously within the specified time. STUD/STLD sensor trouble. Connection trouble of the connector and the harness. Replace the DSPF PWB.
Remedy:
Replace the STUD/STLD sensor. Check connection of the connector and the harness. Replace the DSPF PWB.
Code: U5-31
Description:
Document feed unit tray lift down trouble
Causes:
STLD does not turn OFF within the specified time. STUD/STLD sensor trouble. Connection trouble of the connector and the harness. Replace the DSPF PWB.
Remedy:
Replace the STUD/STLD sensor. Check connection of the connector and the harness. Replace the DSPF PWB.
Code: U5-40
Description:
Document feed unit installation trouble
Causes:
When two or more document feed units are detected. Connection trouble of the connector and the harness. Document feeder trouble.
Remedy:
Check connection of the connector and the harness.

Code: U6-00
Description:
PCU PWB - Desk paper feed unit communication error
Causes:
Error when testing the communication line after turning ON the power or canceling the simulation. Connector, harness connection trouble. Desk control PWB trouble. PCU PWB trouble Strong external noises.
Remedy:
Turn OFF/ON the power to cancel. Check the connector and the harness in the communication line. Replace the desk control PWB. Replace the PCU PWB.
Code: U6-01
Description:
Desk paper feed tray 1 lift trouble
Causes:
DLUD1 does not turn ON within the specified time when lift-up operation. DLUD1 sensor trouble. Desk control PWB trouble. Lift unit trouble. Connection trouble of the connector and the harness. PCU PWB trouble
Remedy:
Replace the DLDU1 sensor. Replace the desk control PWB. Replace the lift unit. Check connection of the connector and the harness. Replace the PCU PWB.
Code: U6-02
Description:
Desk paper feed tray 2 lift trouble
Causes:
DLUD2 does not turn ON within the specified time when lift-up operation. DLUD2 sensor trouble. Desk control PWB trouble. Lift unit trouble. Connection trouble of the connector and the harness. PCU PWB trouble
Remedy:
Replace the DLDU2 sensor. Replace the desk control PWB. Replace the lift unit. Check connection of the connector and the harness. Replace the PCU PWB.
Code: U6-09
Description:
LCC lift trouble
Causes:
No change in the lift motor rotation sensor signal is detected within the specified time after outputting the lift motor ON signal. The lift motor rotation sensor signal varies though the lift motor is stopped. Lift motor rotation sensor trouble. LCC control PWB trouble Lift mechanism trouble. Lift motor trouble. Connection trouble of the connector and the harness.
Remedy:
Use SIM4-2 and 4-3 to check the operation of the sensor and the lift motor. Replace the lift motor rotation sensor. Replace the LCC control PWB. Replace the lift mechanism. Replace the lift motor. Check connection of the connector and the harness. Use SIM15 to cancel the trouble.
Code: U6-10
Description:
Desk paper feed unit paper transport motor trouble
Causes:
Desk paper feed motor trouble (motor lock, motor rpm abnormality, overcurrent to the motor). Desk control PWB trouble. Connection trouble of the connector and the harness.
Remedy:
Use SIM4-3 to check the operation of the desk transport motor. Replace the desk control PWB. Replace the desk paper feed motor. Check connection of the connector and the harness.
Code: U6-20
Description:
PCU PWB - LCC communication error
Causes:
Error when testing the communication line after turning ON the power or canceling the simulation. LCC control PWB trouble. PCU PWB trouble. Connector, harness connection trouble. Strong external noises. Improper combination between the main unit and the LCC.
Remedy:
Cancel the error by turning OFF/ON the power. Check the connector and the harness in the communication line. Replace the LCC control PWB. Replace the PCU PWB.
Code: U6-21
Description:
LCC paper transport motor trouble
Causes:
No change in the paper transport motor rotation sensor signal is detected within the specified time after outputting the paper transport motor ON signal. The paper transport motor rotation sensor signal varies though the paper transport motor is stopped. Paper transport motor rotation sensor trouble. LCC control PWB trouble. Mechanism trouble. Paper transport motor trouble. Connection trouble of the connector and the harness.
Remedy:
Use SIM4-3 to check the operation of the paper transport motor. Replace the paper transport motor. Replace the LCC control PWB. Replace the mechanism. Replace the paper transport motor. Check connection of the connector and the harness.
Code: U6-22
Description:
LCC 24V power trouble
Causes:
The DC24V power is not supplied from the main unit to the LCC. Connector, harness connection trouble. LCC control PWB trouble. Power source unit trouble.
Remedy:
Check the connector and the harness in the power line. Replace the power unit. Replace the LCC control PWB.

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. LCC control PWB trouble.
Remedy:
Install a LCC which is proper for the main unit mode. Replace the LCC control PWB.
Code: U7-50
Description:
MFP PWB - Vendor machine communication error
Communication error between the MFP and the serial vendor.
Causes:
Improper setting of the vendor machine specifications (SIMI26-3). Vendor machine trouble. 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 LCC control PWB. Replace the MFP PWB.
Code: U7-51
Description:
Vendor machine error
MFP (Notification of a trouble from the serial vendor)
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: UC-02
Description:
CPT - ASIC error
Causes:
SCU PWB trouble (CPT-ASIC trouble)
Remedy:
Replace the SCU PWB.
Code: UC-20
Description:
DOCC ASIC error
Causes:
SCU PWB trouble.
Remedy:
Replace the SCU PWB.

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Sharp MX5001N常见故障 代码(code)描述,英文手册2 - - . . . . - () . () . () . . (...

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