Canon CLC 1120 Service Manual page 529

CHAPTER 13 TROUBLESHOOTING
Step
1
2
3
· When using a meter to check the voltage, you may come across a description reading: "measure
the voltage between J109-1 (+) and -2 (-) on the DC controller PCB." Keep in mind that the
symbols (+) and (+) indicate the positive and negative probes, respectively, of the meter; for
example,
for J109-1 (+), connect the positive probe to the terminal J109-1, and
for J109-2 (-), connect the negative probe to the terminal J109-2.
· When you open the front left cover, the left door switch will turn off and, at the same time, the
laser shutter will close.
If you must operate the copier with its front left door open, you will have to insert the door
switch actuator into the left door switch. Do not insert a screwdriver or the like into the laser
optical path at such times.
13-2
COPYRIGHT © 1999 CANON INC.
Checks
Is the power
plug connected to the
power outlet?
YES
Are the front cover
ant the delivery cover
closed fully?
YES
Is the rated
voltage present at the
power outlet?
YES
CANON CLC1120/1130/1150 REV.0 MAR. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
Yes/No
NO
Connect the plug.
NO
Close the cover.
Advise the user
NO
that the problem
is not of the copier.
Action