Ricoh B291 Service Manual page 229

401 D Transfer roller leak detected
A transfer roller current leak signal is
detected.
402 D Transfer roller open error
The transfer roller current feedback
signal is not detected.
403 D Transfer belt position sensor error
The transfer belt position sensor does
not activate even if the transfer belt
contact clutch has been switched on
twice and rotated once.
405 D Transfer belt error
The transfer belt does not move away
from the drum during ID sensor pattern
checking.
440 D Main motor lock
The PLL lock signal remained HIGH
while the main motor was off, and when
the motor was turned on, the signal
remained LOW for 2 sec.
450 D Feed Development Motor Error
The PLL lock signal remained HIGH
while the feed development motor was
off, and when the motor was turned on,
the signal remained LOW for 2 sec.
490 D Exhaust fan motor lock
An exhaust fan motor lock signal is not
detected within 5 seconds after the
exhaust fan motor turns on.
492 D Cooling fan motor lock
A cooling fan motor lock signal is not
detected within 5 seconds after the
cooling fan motor turns on.
SM
CÓPIA NÃO CONTROLADA
• High voltage supply board defective
• Poor cable connection or defective
• Transfer connector defective
• High voltage supply board defective
• Transfer connector cable defective
• Transfer connector defective
• Poor PCU connection
• Main motor/drive malfunction
• Transfer belt contact clutch defective
• Transfer belt position sensor
• Harness disconnected
• Main motor/drive malfunction
• Transfer belt position sensor
• Poor transfer belt position sensor
• Transfer belt contact clutch defective
• Physical overload on drive
• Main motor drive board (PCB)
• Motor lock caused by physical
• Motor drive board (PCB) defective.
• Too much load on the drive
• Exhaust fan motor defective or a
• Poor fan motor connector connection
• Too much load on the drive
• Cooling fan motor defective or a
• Poor fan motor connector connection
4-7
CÓPIA NÃO CONTROLADA
SERVICE CALL CONDITIONS
cable
defective
defective
connection
mechanism
defective
overload.
mechanism
loose object is interfering with the fan
mechanism
loose object is interfering with the fan
B291/B295/B296/B297