CHAPTER 11 TROUBLESHOOTING
COPYRIGHT © 1999 CANON INC. CANON NP6512/6612/7120/7130/7130F REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
11-78
1
Pickup Assembly
YES/NO
NO
NO
YES
YES
NO
NO
NO
YES
Cause
------------
Cassette
Copy paper
Copy paper
DC control-
ler PCB,
Pickup
clutch
Registration
roller drive
assembly
Vertical path
roller paper
sensor (PS4)
Pickup roller,
Vertical path
roller,Roll
Step
1
2
3
4
5
6
7
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?
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.
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