Description: Desk transport motor operation trouble
Causes: Motor lock Improper motor speed Overcurrent to motor RADF control PWB defective
Remedy: Check transport motor operation with SIM4-6.
Code: U6 20
Description: LCC communication trouble Error when power is turned on or in communication line test after exiting SIM.
Causes: Connector harness improper connection or disconnection LCC control PWB trouble Control PWB (PCU) trouble Malfunction by noise
Remedy: Canceled by turning on the power. Check the connector and harness of the communication line.
Code: U6 21
Description: LCC transport motor operation trouble
Causes: Motor lock Motor rpm abnormality Motor overcurrent LCC control PWB trouble
Remedy: Check the transport motor operation with SIM 4-3.
Code: U6 22
Description: LCC 24V power abnormality. DC24V not supplied to LCC
Causes: Connector harness improper connection or disconnection LCC control PWB trouble Power unit trouble
Remedy: Check the connector and harness of power line. Check 24V power in the power unit and the LCC control PWB.
Code: U6 50
Description: Non-support trouble in automatic detection of option connection (Desk unit). In automatic detection of option connection, a non-support desk unit is detected.
Causes: A non-support desk unit is connected to the copier.
Remedy: Check the desk unit.
Code: U6 51
Description: Non-support trouble in automatic detection of option connection (LCC unit). In automatic detection of option connection, a non-support LCC unit is detected.
Causes: A non-support LCC unit is connected to the copier.