Service manual

COPYRIGHT © 1999 CANON INC. CANON GP160 REV.0 FEB. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 13 TROUBLESHOOTING
13-36
Cause
Multifeeder
pick-up roller
Lifting plate
retaining cam
Multifeeder
pick-up drive
assembly gear
Connector con-
nection
Multifeeder
pick-up sole-
noid (SL302)
DC controller
PCB
Steps
13
14
15
16
17
18
Yes/No
NO
NO
NO
YES
NO
YES
NO
Action
Check from Item 16.
Clean the roller. If it is
worn or misshapen,
replace it.
Check that the lifting
plate retaining cam isn’t
out of alignment.
Replace damaged
gears.
Reconnect the connec-
tors.
End
Replace the DC con-
troller PCB.
Checks
Is the multifeeder pick-up roller rotat-
ing?
Check the surface of the multifeeder
pick-up roller. Is it normal?
Does the multifeeder lifting plate rise
as the multifeeder pick-up roller
rotates?
Are the multifeeder pick-up drive
assembly gears damaged?
Check the wiring from connector
J307 on the DC controller PCB to
the multifeeder pick-up solenoid
(SL302). Is it normal?
Is the trouble resolved when the mul-
tifeeder pick-up solenoid (SL302) is
replaced?
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