E015 - Canon 1000 Service Manual

7. TROUBLESHOOTING IMAGE FAULTS/MALFUNCTIONS
8

E015

Cause Step
Pick-up assem-
bly feeding roller
drive assembly
(each cassette
holder),
Multifeeder pick-
up roller drive
assembly, Paper
thickness detect-
ing roller drive
assembly,
Registration
roller drive
assembly, Paper
deck feeding
roller drive
assembly, Paper
deck pick-up
roller drive
assembly,
Duplexing unit
pick-up roller
drive assembly,
Pick-up vertical
path roller 1 drive
assembly
Pick-up motor
(M10)
DC controller
PCB
7-96
COPYRIGHT © 2001 CANON INC.
Checks
1 Is there a fault in the pick-up assem-
bly feeding roller drive assembly of
each cassette holder, multifeeder
pick-up roller drive assembly, or
registration roller drive assembly?
Or, is any of them subjected to an
excess load?
2 Set the meter to the 24VDC range.
When the Start key is pressed, does
the voltage between J2213A-10 (+;
M10D*) and J2213A-11 (–; GND) on
the DC controller PCB change from 5
V to 0 V?
Yes/No
CANON CLC1000/1000S/3100 REV.2 MAY 2001 PRINTED IN JAPAN (IMPRIME AU JAPON)
Action
YES Remove the cause of the
fault. Replace the faulty
part. Moreover, remove
the cause of the fault.
YES Replace the pick-up
motor.
NO Check the wiring from
J6071 on the pick-up
motor to J2213A on the
DC controller; if normal,
replace the DC controller
PCB.