Ricoh B132 Service Manual page 443

SC440 D Image transfer power pack error 1: K
SC441 D Image transfer power pack error 2: M
SC442 D Image transfer power pack error 3: C
SC443 D Image transfer power pack error 4: Y
An interrupt checks the status of
the power pack every 2 ms. This
SC is issued if the BCU detects a
short in the power pack for K, M,
C, or Y 250 times within 500 ms.
SC445 D Image transfer motor error
The control board of the ITB
motor belt generated signals that
indicate there is problem with
the image transfer belt motor.
SC446 D ITB lift motor error
The state of the ITB lift sensor
does not change its state
(switching from off to on or vice
versa), even after the ITB lift
motor starts rotating.
SC450 D Transfer power pack output error
An interrupt checks the status of
the power pack every 2 ms. This
SC is issued if the BCU detects
a short in the power pack 250
times at T2 within 500 ms.
SC455 D PTR motor error
The lock signal from the paper
transfer motor is not detected
within 1 sec. after the motor
switched on.
SM
SERVICE CALL CONDITIONS
• Transfer belt damaged, insulation
damaged
• Insulation on high voltage cable
damaged
• Another hot point inside the machine has
damaged insulation
• Insulation around high-voltage power
supply damaged
• IOB damaged
• ITB motor defective
• ITB control board defective
• ITB overloaded
• Encoder strip on the front edge of the
belt damaged.
• ITB lift sensor dirty, disconnected,
defective
• ITB lift motor disconnected, defective
• Damaged insulation on the high-voltage
supply cable
• Damaged insulation around the high-
voltage power supply.
• Motor disconnected
• PTR shaft locked, needs cleaning,
blocked by obstruction
• Drive shaft of the ITB locked and
overloaded, needs cleaning, or blocked
by obstruction
• DRB (motor drive board) disconnected,
defective
4-43 B132/B200