Adjusting The Laser - Canon CLC 1120 Service Manual

13) Compare the reading and the value
(Pmax) recorded on the label. If different,
turn VR2 [7] on the laser driver PCB so
that the reading and the recorded value are
identical.
Caution:
1. While watching the reading of the
laser power checker, turn VR2
gradually, taking care not to increase
the power in excess. (Turning VR2
counterclockwise reduces the laser
output.)
2. The laser diode is vulnerable. Be sure
NOT to exceed the value recorded on
the label.
3. Take care NOT to press the Copy
Start key while making adjustments
using VR2.
14) Press the Stop key to stop the laser output.
15) Perform laser adjustments.

5. Adjusting the Laser

Caution:
Be sure to adjust laser power before
starting to adjust the laser.
1) Select ADJUST>LASER in service
mode.
COPYRIGHT © 1999 CANON INC. CANON CLC1120/1130/1150 REV.0 MAR. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 5 LASER EXPOSURE SYSTEM
[7]
Figure 5-514
5-13