Code :

Code: U5-00
Description: Document feed unit communication error
Causes: Connector, harness connection trouble. SCN Mother PWB trouble. DSPF PWB trouble.
Remedy: Turn OFF/ON the power. Check connection of the connector and the harness. Replace the SCN Mother 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: U5-20
Description: SPF paper feed transport motor trouble
Causes: SPF paper feed transport motor trouble Connection trouble of the connector and the harness
Remedy: Use Sim2-3 to check the operation Check the SPF paper feed transport motor and connection of the connector and the harness

Code: U5-30
Description: Document feed unit tray lift up trouble
Causes: STUD does not turn ON 5 times continuously within the specified time. STUD/STLD sensor trouble. Connection trouble of the connector and the harness. DSPF PWB trouble.
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. DSPF PWB trouble.
Remedy: Replace the STUD/STLD sensor. Check connection of the connector and the harness. Replace the DSPF PWB.

Code: U6-09
Description: LCC lift motor trouble. No variation in the motor rotation sensor signal (encoder sign) is detected within the specified time after booting or stopping the LCC lift motor.
Causes: LCC lift motor rotation sensor trouble LCC control PWB trouble LCC lift mechanism trouble LCC lift motor trouble
Remedy: Use SIM4-2 and 4-3 to check the operation of the LCC sensor and the lift motor. Check the LCC lift motor rotation sensor, and replace if necessary. Check the LCC control PWB, and replace if necessary. Check the LCC lift mechanism, and repair if necessary. Check the LCC lift motor, and replace if necessary. Use SIM15 to cancel the trouble.

Code: U6-20
Description: LCC control PWB - PCU PWB communication error
Causes: Communication error between the LCC control PWB and the PCU PWB. 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: Check to confirm the LCC model. Check the connection of the harness and the connector between the machine and the LCC and those of the LCC control PWB, and replace if necessary. 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 RPM abnormality Overcurrent to the motor LCC control PWB trouble / A3 2-stage LCT control PWB trouble
Remedy: Use SIM04-03 to check the operation of the transport motor. Replace the motor Replace the LCC / A3 2-stage LCT control PWB.