Canon 1130 Service Manual page 607

CHAPTER 13 TROUBLESHOOTING
1. Turn VR2 slowly while monitoring the output of the laser power checker so
2. Be sure not to exceed the value recorded on the label. Otherwise, the laser
3. Do NOT press the Start key while making adjustments using VR2.
13) Press the Stop key to stop the laser output.
14) Adjust the laser.
4 Adjusting the Laser
Be sure to adjust the laser power before starting the following work:
1) Select ADJUST>LASER in service mode.
2) Select T-V00 and enter '255'; then, press OK.
3) Select T-V00-ON, and press OK. (The laser will turn on.) Take notes of the reading (offset). To
stop the laser output, press the Stop key.
4) Select T-V00, and adjust T-V00 so that the following is true: offset value + (0.15 to 0.20 mV)
5) Likewise, adjust T-VFF, PE-V00, P3-VFF-1, P3-VFF-2, P3-VFF-3, and P3-VFF-4. To stop
the laser output, press the Stop key. Study the following table for an idea of optimum output.
T-V00
T-VFF
P3-V00
P3-VFF-1
P3-VFF-2
P3-VFF-3
P3-VFF-4
6) Press the Reset key to end service mode.
7) Turn off the power switch.
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COPYRIGHT © 2002 CANON INC.
as to avoid increasing the laser power excessively. Turning VR2
counterclockwise will decrease the laser output.
diode may become damaged.
Item Standard (mV)
Offset value + (0.15 to 0.2)
Pmax ×70%
Offset value + (0.1 to 0.15)
Pmax ×45%
Pmax ×55%
Pmax ×65%
Value on label ×70%
CANON CLC1100/1130/1150/1160/1180 REV.1 FEB. 2002 PRINTED IN JAPAN (IMPRIME AU JAPON)
Laser ON key
T-V00-ON
T-VFF-ON
P3V00-ON
P3-V1-ON
P3-V2-ON
P3-V3-ON
P3-V4-ON