E041 - Canon 1000 Service Manual

7. TROUBLESHOOTING IMAGE FAULTS/MALFUNCTIONS
15

E041

• Take note of the position of the lifter when 'E041' is indicated.
• Check the detail code of 'E041' using 'JAM/ERR' under 'DISPLAY' in service mode.
a. E041=0001
Cause Step
Lifter upper limit
switch (SW8001)
Paper deck
motor (M8001)
DC controller
PCB
7-106
COPYRIGHT © 2001 CANON INC.
Checks
1 Has the lifter moved up to push the
switch when 'E041' is indicated?
2 Turn OFF and ON the power switch
to clear 'E041'.
Does bit 4 of address 801004 under
'DISPLAY/SENSOR' in service mode
change when the lifter upper switch
(SW8001) is pressed by a finger?
3 Turn OFF and ON the power switch,
and open the paper deck cover.
Does the voltage between J2223A-4
(+) and J2223A-3 (–) on the DC
controller change from 0 V to 24 V
when closing the cover?
Yes/No
CANON CLC1000/1000S/3100 REV.2 MAY 2001 PRINTED IN JAPAN (IMPRIME AU JAPON)
Action
NO Go to step 3.
NO Check the wiring from the
switch to the DC control-
ler; if normal, replace the
sensor.
YES Replace the DC controller
PCB.
YES Check the drive system
and wiring from the motor;
if normal, replace the
motor.
NO Replace the DC controller
PCB.