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CHAPTER 3 IMAGE TROUBLESHOOTING
3-11
14. The copy has faulty fixing.
Cause Step Checks YES/NO Remedies
Copy paper 1 Is the copy paper of a type rec-
ommended by Canon?
NO Try paper of a recom-
mended type; if the
results are good, advise
the user to use recom-
mended paper.
Fixing film 2 Is the faulty fixing vertical and in
the form of lines?
YES Check the fixing film and
pressure roller for
scratches. If scratches
are found, replace the
fixing unit or roller.
DC controller/DC
power supply PCB
3 Is the heater turned ON for
control after copy operation is
started?
YES The control temperature
for the fixing heater may
be low; check the ther-
mistor and DC controller/
DC power supply PCB.
Fixing heater NO See “The fixing heater fails
to operate.”
15. The copy has faulty leading edge registration (blank area much too wide).
16. The copy has faulty leading edge registration (blank area too wide).
17. The copy has faulty leading edge registration (no blank area).
Cause Step Checks YES/NO Remedies
Registration cam 1 Move the registration cam on the
copyboard left and right.
Is there any change to the reg-
istration?
YES Adjust the position of the
registration cam.
Solenoid (SL1),
DC controller/DC
power supply PCB
2 Is the solenoid for registration
(SL1) operating normally?
NO 1. Check the solenoid
(SL1).
2. Check the DC con-
troller/DC power supply
PCB.
Pick-up roller 3 Is the copy paper of a type
recommended by Canon?
YES Check the pick-up roller.
Copy paper NO Try copy paper of a type
recommended by Canon;
if the results are good,
advise the user to use
recommended paper.