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.
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: 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. Harness and connector connection trouble. 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. Harness and connector connection trouble. 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. Harness and connector connection trouble. Use SIM15 to cancel the trouble.