Canon 1130 Service Manual page 585

CHAPTER 13 TROUBLESHOOTING
Points to Note about the Pre-
8
Cleaning Sensor
If you have removed or replaced the pre-
cleaning sensor assembly, perform the
following:
1) Dry wipe the window of the pre-cleaning
sensor, and mount it.
2) Turn on the power switch, and keep the
copier in standby state.
3) Select and execute FUNCTION>SENS-
ADJ>CLN-OFST in service mode.
4) Record the settings of ADJUST>SENS-
ADJ>CLN-TH, CLN-TMP in service
mode to the service label.
Points to Note about the Black
9
Toner Concentration Sensor
• If you clean the black toner
concentration sensor, use a flannel
cloth, moistened with and then well
wrung.
The reason for using water
is to remove charges from
the sensor window of the
black toner concentration
sensor. (The presence of
charges can attract toner to
the sensor window)
After cleaning the sensor
window with water, do
NOT leave droplets of
water on it, also do NOT
dry wipe it.
• If you have cleaned the black toner
concentration sensor, select and
execute FUNCTION>INSTALL>
INIT-D after mounting it.
13-19a 13-6
COPYRIGHT © 2002 CANON INC. CANON CLC1100/1130/1150/1160/1180 REV.0 FEB. 2002 PRINTED IN JAPAN (IMPRIME AU JAPON)