Ricoh B022, Service Manual, Page: 334 / 878

Trouble-
shooting
SERVICE CALL CONDITIONS
SM 7-5 B022/B027
Code No. Symptom Possible Cause
401 B Transfer roller leak error 1
Transfer roller leak error 2 402 B
A transfer roller current leak signal is
detected.
The 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
Separation bias leak error 411 B
A separation bias leak signal is
detected.
•
High voltage supply board defective
•
Poor connection of the PCU
•
Discharge plate defective
Toner supply motor leak error 490 B
Over 1 A supplied to the toner supply
motor for longer than 200 ms.
Toner supply motor defective
Main motor lock 500 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.
•
Too much load on the drive
mechanism
•
Main motor defective
501 B 1st paper tray lift motor malfunction
502 B 2nd paper tray lift motor malfunction
503 B 3rd paper tray lift motor malfunction
(optional paper tray unit)
4th paper tray lift motor malfunction
(optional paper tray unit)
504 B
The paper lift sensor is not activated
after the tray lift motor has been on for
18 seconds.
•
Paper lift sensor defective
•
Tray lift motor defective
•
Too much load on the drive
mechanism
•
Poor tray lift motor connection
Paper tray motor lock (optional paper
tray unit) 506 B
A motor lock signal is not detected for
more than 1.5 s or the lock signal is not
detected for more than 1.0 s during
rotation.
•
Paper tray unit motor defective
•
Too much load on the drive
mechanism
Rear fence drive error (optional LCT) 508 B
The return position sensor is not
activated after the rear fence drive
motor has been on to lower the tandem
tray for 8 seconds.
•
Rear fence motor defective
•
Return position sensor defective
•
Too much load on the drive
mechanism
Side fence drive error (optional LCT) 509 B
The side fence positioning sensor is not
activated for more 3 seconds when the
paper stack in the left tray is moved to
the right tray.
The side fence close sensor is not
activated for more 3 seconds after
moving the paper stack to the right tray.
•
Side fence motor defective
•
Side fence position sensor defective
•
Side fence close sensor defective
•
Too much load on the drive
mechanism
LCT lower limit error 510 B
The lower limit sensor does not activate
within 8 seconds after the tray has been
lowered.
•
Tray lift motor defective
•
Poor connection of the tray lift motor
•
Lower limit sensor defective
•
Too much load on the drive
mechanism
Rev. 01/2003