Ricoh FT7060 Field Service Manual page 267

The CPU receives the cleaner lock signal for more than 2
°
seconds after the CPU outputs the cleaner forward/backward
signal.
The difference between the forward time and the return time
°
is more than 10 seconds.
Remove the charge corona unit.
°
Check the wire cleaner mechanism.
°
N
|
Turn on the cleaner motor using SP 5-3.
Is the voltage between CN304-A15 and CN304-B15 on the dc
drive board 15 volts?
Does the cleaner motor forward (CN304-A2) and reverse
(CN304-B2) signals go from zero to 3 volts?
Y
Replace the dc drive board.
Replace the cleaner motor.
Correct the mechanism.
N
|
Is the cleaner motor lock
volts?
Y N
Replace the dc drive
Replace the main board.
Is it incorrect?
(CN304-B8) signal zero
board.
8-55
12 July '86