Canon CLC 1130, Service Manual

Page: 253 / 965

CHAPTER 6 IMAGE FORMATION SYSTEM
6-82
COPYRIGHT © 2002 CANON INC. CANON CLC1100/1130/1150/1160/1180 REV.2 FEB. 2002 PRINTED IN JAPAN (IMPRIME AU JAPON)
3. Removing the Gradation Sensor
(CLC1140/1160/1180 only)
1) Disconnect the 2 connectors [1] and
remove the screw [2]; then, detach the
black toner concentration sensor unit [3]
from the machine.
Figure 6-676a
2) Remove the 2 screws [4].
3) Remove the 2 screws [5], and detach the
gradation sensor from the unit; then,
disconnect the connector [6].
Figure 6-676b
Figure 6-676c
•
When disconnecting the connector of the gradation sensor, be sure that the black
toner concentration sensor is ready to be detached from the unit to avoid an open
circuit.
• If you clean the gradation sensor, use a flannel cloth, moistened with and then
well wrung.
The reason for using water is to remove charges from the sensor window. (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 replaced the gradation sensor, be sure to execute the following in service
mode:
FUNCTION>SNS-ADJ>P-SENS. Then, be sure also to record the readings of the
following in service mode on the Service Label:
ADJUST>DENS>P-SENS-Y/M/C/K.
[2] [3]
[1]
[4]
[5]
[6]