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SERVICE CALL CONDITIONS
SC401/402: Transfer roller leak error 1/2
Definition: [B]
Transfer current leak signal is detected.
Transfer current feedback signal is not detected.
Possible causes:
• High voltage supply board defective
• Poor connection of the PCU
• Transfer/separation unit set incorrectly
• Transfer roller damaged
SC411: Separation bias leak error
Definition: [B]
Separation bias leak signal is detected.
Possible causes:
• High voltage supply board defective
• Poor connection of the PCU
• Discharge plate defective
SC500: Main motor lock
Definition: [B]
A main motor lock signal is not detected for more than 500 ms after the main
motor starts to rotate, or the lock signal is not detected for more than 500 ms
during rotation after the last signal.
Possible causes:
• Too much load on the drive mechanism
• Main motor defective
• Engine board defective
SC501: 1st paper tray lift motor error
SC502: 2nd paper tray lift motor error
SC503: 3rd paper tray lift motor error (optional paper tray unit)
SC504: 4th paper tray lift motor error (optional paper tray unit)
Definition: [C]
The paper lift sensor is not activated after the tray lift motor has been on for 18
seconds.
Possible causes:
• Paper lift sensor defective
• Tray lift motor defective
• Too much load on the drive mechanism
• Engine board defective
7-4
1 October, 1999
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