Canon 1130 Service Manual page 723

CHAPTER 13 TROUBLESHOOTING
50 Pickup operation fails (multifeeder).
Cause
Multifeeder
pickup roller
Multifeeder
pickup clutch
(CL16)
Lifter plate
Multifeeder paper
pickup solenoid
(SL14)
Pickup driver
PCB
DC driver PCB,
CPU PCB
13-140
COPYRIGHT © 2002 CANON INC.
Step Checks
1 Is paper picked up, not slipping
under the pickup roller?
2 Select the multifeeder, and press
the Start key. Does the multifeeder
pickup roller rotate?
3 Does the lifter plate move up when
the Start key is pressed?
4 Connect the + probe of the meter to
J345-B8 on the pickup driver PCB.
Does the voltage change from
about 24 to about 0 V when the
Start key is pressed?
5 Replace the pickup driver PCB. Is
the problem corrected?
CANON CLC1100/1130/1150/1160/1180 REV.2 FEB. 2002 PRINTED IN JAPAN (IMPRIME AU JAPON)
Yes/No Action
YES Replace the pickup
roller.
NO Check the wiring; if
normal, replace the
clutch.
NO Check the lifter plate
drive system; as
necessary, adjust or
replace the plate.
YES Check the wiring; if
normal, replace the
solenoid.
YES End.
NO Replace the DC driver
PCB or the CPU PCB.
(After replacement,
execute the work under
II. H. 10. or II. H. 1.)