Ricoh Aficio MP 1600L2, Field Service Manual

Page: 183 / 264

No.
Definition
Symptom Possible Cause
391 B
Development bias leak
A development bias leak signal is
detected.
• Poor connection of the PCU
• High voltage supply board defective
392 B
TD sensor initial setting error
TD sensor initial setting is not
performed correctly.
• ID sensor defective
• No developer
• Drum does not turn
• Development roller does not turn
• Poor connection of the PCU
• The voltage is not applied to charge roller
401 B
Transfer roller leak error 1
A current leak signal for the transfer
roller is detected.
A current feedback signal for the
transfer roller is not detected.
• High voltage supply board defective
• Poor connection of the PCU
• Transfer/separation unit set incorrectly
• Transfer roller damaged
402 B
Transfer roller leak error 2
A current leak signal for the transfer
roller is detected.
A current feedback signal for the
transfer roller is not detected.
• High voltage supply board defective
• Poor connection of the PCU
• Transfer/separation unit set incorrectly
• Transfer roller damaged
500 B
Main motor lock
A main motor lock signal is not
detected for more than 7
consecutive checks (700 ms) after
the main motor starts to rotate, or
the lock signal is not detected for
more than 7 consecutive checks
during rotation after the last signal.
• Too much load on the drive mechanism
• Main motor defective
Service Call Conditions
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