CHAPTER 11 TROUBLESHOOTING
COPYRIGHT © 1999 CANON INC. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
11-58
19 The copy has horizontal fogging.
YES/NO
YES
YES
NO
YES
NO
Cause
Scanning
lamp
Cartridge,
High-voltage
transformer
assembly
Scanning
system
Feeding
system
Step
1
2
3
Checks
Does the scanning lamp flicker?
Replace the cartridge. Is the problem
corrected?
Make a reduced copy, and compare it
against one made in Direct. Is the
problem found at different positions?
Action
Replace the scanning
lamp.
End.
Check the high-
voltage transformer
(composite power
supply PCB).
Check the scanning
system.
Check the feeding
system.
18 The copy has a blurred image.
YES/NO
YES
NO
YES
YES
NO
Cause
Scanner
drive cable
Scanner rail
---------------
Feeding
system
Cartridge
Step
1
2
3
4
Checks
Does the cable wind on itself when the
scanner is moving? Or, is the cable too
slack or too taut?
Move the No. 1 mirror mount slowly
by hand. Does it move slowly?
Is abnormal noise heard from the
scanner motor?
Does the copy paper spring up or stop
around the transfer assembly?
Action
1. Route the cable
correctly.
2. If the cable is
twisted or frayed,
replace it.
Clean the surface of
the scanner rail with
alcohol. Then, apply
lubricant. (CK-0551)
See "The scanner fails
to move forward/in
reverse."
Check the feeding
assembly for burrs.
Replace the cartridge.
Содержание PC800 Series
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