Canon CLC 1120 Service Manual page 634

c. E020=xx50, xx51, xx60, xx61, xx62, xx63, xx64, xx65, xx66, xx70, x71, xx72, xx73, xx74,
xx75, xx76
(The first two digits indicate color; e.g., xx=00 for all colors, 01 for M, 02 for C, 03 for Y, and
04 for Bk.)
Cause
Backup data
CPU PCB
COPYRIGHT © 1999 CANON INC.
Step Checks
1 Is the setting of
COPIER>DISPLAY>DENS in
service mode identical to the
setting recorded on the service
label?
2 Replace the CPU PCB. Is the
problem corrected?
CANON CLC1120/1130/1150 REV.0 MAR. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 13 TROUBLESHOOTING
Yes/No
NO Enter the setting of DC-
CON newly.
YES Perform work indicated
for the replacement of
the CPU PCB.
Action
13-107