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2. Separation/Feeding Assembly
3. Fixing/Delivery Assembly
COPYRIGHT
©
1997 CANON INC. CANON NP6218 REV. 0 MAY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
10-80
CHAPTER 10 TROUBLESHOOTING
Cause
Transfer charg-
ing assembly
Copy paper
Feed belt
Checks
Is the transfer charging assembly
set correctly?
Are there burrs on the paper guide
of the transfer charging assembly?
Try Canon-recommended paper.
Is the problem corrected?
Are the two feeding belts rotating
properly?
Step
1
2
3
4
Results
NO
YES
YES
NO
YES
Action
Check the transfer
charging assembly.
Remove the burrs.
Advise the user to use
recommended paper.
Check the belt pulley.
Check the feed belt for
deformation or wear.
Cause
Delivery
assembly
separation claw
Lower fixing
roller, fixing
film
Paper guide
Nip
Delivery
lever
Delivery
sensor
(PS1)
Delivery
roller drive
assembly
Leading edge
margin
Checks
Is the separation claw worn or
deformed?
Is the lower fixing roller or the
fixing film deformed or worn?
Is the paper guide soiled with
toner?
Is the lower roller pressure (nip)
within specification?
Does the delivery detection lever
move smoothly?
Does the delivery sensor operate
normally? (See the descriptions
on how to check the
photointerrupters.)
Does the delivery roller move
smoothly?
Step
1
2
3
4
5
6
7
Results
YES
YES
YES
NO
NO
NO
NO
YES
Action
1. Replace the
separation claw.
2. If dirt is found, clean
with solvent.
Replace the roller.
Clean with solvent.
Make adjustments.
Make adjustments so
that the lever moves
smoothly.
Replace the sensor.
Check the delivery roller
drive assembly.
Check if a margin exists
along the leading edge of
the copy.
Fixing assemblyDelivery assembly