Pickup Assembly - Canon PC920 Service Manual

CHAPTER 11 TROUBLESHOOTING

1 Pickup Assembly

Cause Step
---------------- 1
Cassette 2
Copy paper 3
Copy paper 4
DC control- 5
ler PCB,
Pickup
clutch
Registration 6
roller drive
assembly
Vertical path 7
roller paper
sensor (PS4)
Pickup
roller,
Vertical path
roller, Roll
11-76
Checks
Does the problem occur when the
cassette is selected as the source of
paper?
Is the cassette set correctly?
Is the copy paper curled or wavy?
Try paper recommended by Canon. Is
the problem corrected?
Does the pickup roller of the pickup
assembly of the selected source
(cassette, manual feeder) rotate during
a copying run?
Does the registration roller operate
normally?
Does the vertical path roller paper
sensor operate normally?
COPYRIGHT © 1999 CANON INC.
YES/NO
NO
NO
YES
YES
NO
NO
NO
YES
CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
Action
Go to step 5.
Set the cassette cor-
rectly.
Replace the copy
paper. Instruct the user
on the correct method
of storing paper.
Ask the user to use
recommended paper.
See "Pickup fails" for
the source of paper in
question.
See "The registration
roller fails to rotate."
Replace the sensor or
the lever.
Check the roller for
wear and deformation,
and the roll for attach-
ment.