Adjusting Laser Power - Canon CLC 1120 Service Manual

5) Remove the three screws [9], and detach
the laser driver PCB [10].
Caution:
When handling the laser driver PCB, be
sure to hold it as shown, and never touch
any of the elements on the PCB. Take
special care not to touch the pins of the
laser; otherwise, you can damage the
laser by static electricity.

4. Adjusting Laser Power

If you have replaced the laser scanner
unit, laser driver PCB, or laser controller PCB,
enter the values recorded on the label that
comes with the PCB in service mode
(ADJUST>LASER). Attach the label behind
the right front cover.
If the output of the laser has decreased,
perform the following:
Tools Needed
· Laser power checker (FY9-4013)
· Digital multimeter (CK-0436)
Caution:
Be sure to check the values recorded on
the label attached behind the right front
cover.
COPYRIGHT © 1999 CANON INC. CANON CLC1120/1130/1150 REV.0 MAR. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 5 LASER EXPOSURE SYSTEM
[9]
Figure 5-509
Figure 5-510
[10]
[9]
5-11