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CHAPTER 11 TROUBLESHOOTING
COPYRIGHT
©
1999 CANON INC. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
11-78
B. Faulty Feeding
1 Double-Feeding
YES/NO
NO
NO
YES
NO
YES
Cause
Cassette
Copy paper
Claw (cas-
sette)
Step
1
2
3
4
Checks
Is the copy paper placed under the
claw properly?
Push down the copy paper inside the
cassette. Does it move up when let go
with its end coming under the claw?
Is the sheets of paper placed in the
cassette uneven?
Is the paper of a type recommended by
Canon?
Action
Place the copy paper
properly.
1. Check the copy
paper width.
2. Check the position
of the side guide
plate of the cassette.
(universal cassette
only)
3. Measure the force
of the spring of the
cassette; if faulty,
replace the cassette
spring.
Even out the sheets in
the cassette.
Ask the user to use
recommended paper.
Check the claw for
deformation.
2 Wrinkles
YES/NO
YES
YES
YES
NO
YES
Cause
Pickup
assembly,
Vertical path
roller,
Registration
roller
Copy paper
Fixing
assembly
Inlet guide
Step
1
2
3
4
Checks
Turn off the power while copy paper is
moving through the feeding assembly.
Is the copy paper wrinkled or found
askew?
Try fresh paper. Is the problem cor-
rected?
Try paper of a type recommended by
Canon. Is the problem corrected?
Is the inlet guide soiled with toner?
Action
• Check the pickup
assembly.
• Check the vertical
path roller.
• Check the registra-
tion roller.
The paper is moist.
Instruct the user on the
correct method of
storing paper.
Ask the user to use
recommended paper.
Check the fixing
assembly.
Clean the inlet guide
with solvent.