Faulty Feeding - Canon CP660 Service Manual

CHAPTER 10 TROUBLESHOOTING
B.

Faulty Feeding

1 Double Feeding
Cause Step
1
Separation 2
roller
Spring 3
Separation 4
roller
Multifeeder 5
separation pad
Spring 6
10-66
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Checks
Does the problem occur when the
source is a cassette?
Is the separation roller worn or
deformed?
Is the spring used to pull the sepa-
ration roller normal?
Is the torque limiter of the separa-
tion roller normal?
Is the surface of the multifeeder sep-
aration pad worn?
Is the spring used to push up the
multifeeder separation pad normal?
Yes/No
YES
NO
YES
NO
NO
YES
NO
CANON 660/2100 REV.0 FEB. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
Action
Go to step 2.
If the source is the multi-
feeder, go to step 5.
Replace the separation
roller.
Replace the spring.
Replace the torque lim-
iter.
Replace the multifeed-
er separation pad.
Replace the spring.