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COPYRIGHT © 2001 CANON INC. CANON CLC1000/1000S/3100 REV.2 MAY 2001 PRINTED IN JAPAN (IMPRIME AU JAPON)
7. TROUBLESHOOTING IMAGE FAULTS/MALFUNCTIONS
Guide To Tables
In this chapter, work procedures are given in the form of tables instead of flow charts used generally.
Familiarize yourself by studying the example below.
EX. AC power is absent.
n
To find out the cause (problem part) of a single problem, refer to the item under “Cause.” For “AC power
is absent,” the cause may be the power plug, covers, power source, or others.
n
To find out the checks to make or remedies to provide for a single problem, refer to the “Checks” and
“Action”; make checks, answer to the questions YES or NO, and provide remedies accordingly. If the
answer is otherwise, proceed to the next step.
YES
NO
1
Is the power plug
connected to the
power outlet?
Connect the power
plug.
YES
NO
2
Are the front
cover (right/left) and
delivery cover closed
properly?
Close the cover.
YES
NO
3
Is the rated voltage
present at the power
outlet?
The problem is not
of the copier. Advise
the customer as
such.
<Step>
<Action>
<Yes/No>
<Checks>
n
Checks on the voltage using a meter call for special note; the description “Check the voltage between
J109-1 (+) and J109-2 (–) on the DC controller PCB” means that the positive probe of the meter should
be placed on J109-1 (+) and the negative probe, on J109-2 (–).
Cause
Power plug
Covers
Power source
Step
1
2
3
4
Checks
Is the power plug connected to
the power outlet?
Are the front cover and delivery
cover closed properly?
Is the rated voltage present at
the power outlet?
Is the rated voltage present
between J1-1 and -2 (near cord
plate)?
Yes/No
NO
NO
NO
YES
Action
Connect the power plug
Close the cover
The problem is not of the copier.
Advise the customer as such.
Go to step 6.
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