Ricoh K-C3

B245/B276/B277/B268/B269 Service Manual 18-Jan-06
120
No.
Definition
Symptom Possible Cause
A development bias leak
signal is detected.
 Poor connection of the PCU
 High voltage supply board defective
TD sensor initial setting error
392 B
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
Transfer roller leak error 1
401 B
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
Transfer roller leak error 2
402 B
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
Main motor lock
500 B
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
 Too much load on the drive
mechanism
 Main motor defective