Service Call Tables
SM 4-29 D014/D015/D078/D079
Trouble-
shooting
SC440 D Image transfer power pack error: K
SC441 D Image transfer power pack error: M
SC442 D Image transfer power pack error: C
SC443 D Image transfer power pack error: Y
An interrupt checks the status of the power pack every 10 ms. This SC is
issued if the VBCU detects a short in the power pack for K, M, C, or Y.
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
Image transfer motor error
SC445 D
The control board of the ITB
motor belt generated signals
that indicate there is problem
with the image transfer belt
motor.
ITB motor defective
ITB control board defective
ITB overloaded
Encoder strip on the edge of the ITB
damaged.
ITB lift motor error
SC446 D
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.
ITB lift sensor dirty, disconnected,
defective
ITB lift motor disconnected,
defective
ITB sensor defective
ITB lift motor defective
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