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COPYRIGHT
©
1998 CANON INC. CANON NP7161/NP7160 REV.0 AUG. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 10 TROUBLESHOOTING
10–1
I. GUIDE TO TROUBLESHOOTING TABLES
The troubleshooting tables in this chapter are based on more commonly used troubleshooting
flow charts.
Study the following for an idea of how you may take advantage of the tables.
EX: AC power is absent.
■ If you want to find out the possible causes (faulty parts) associated with a specific problem,
see the items under “Cause.”
In the case of the above, i.e., “AC power is absent,” you may suspect the power plug,
doors and covers, or power source.
■ If you want to find out the checks to make or the actions to take for a specific problem,
follow the instructions under “Checks” and “Actions” in sequence. Answer the question
Yes or No, and if your answer matches the answer given under “Yes/No,” take the action
given under “Actions”; otherwise, go to the next step and work likewise.
Rest omitted.
Cause
Power plug
Step
1
2
3
4
NO
NO
NO
YES
Checks Yes/No Actions
Covers
Power source
Is the power plug connected to
the power outlet?
Are the front door and delivery
cover closed properly?
Is the rated voltage present at the
power outlet?
Is the rated voltage present between
J1-1 and J1-2? (J1 is found near
the power cord mount.)
Connect the power
plug.
Close the door and
the cover properly.
This is not the copier's
problem. Inform the
user accordingly.
Go to step 6.