Ricoh FT7060 Field Service Manual page 265

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.
°
Turn on the cleaner motor using SP 5-3.
Is the voltage between CN304-A14 and CN304-B14 on the dc
drive board 15 volts?
Y N
Does the cleaner motor forward (CN304-A1) and reverse
(CN304-B1) signals go from zero to 3 volts?
Y
Replace the dc drive board.
Replace the cleaner motor.
Correct the mechanism.
N
|
I the cleaner motor lock (CN304-A8) signal zero
S
volts?
Y N
Replace the dc drive board.
Replace the main board.
Is it incorrect?
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12 July '86