CHAPTER 11 TROUBLESHOOTING
COPYRIGHT © 1999 CANON INC. CANON NP6512/6612/7120/7130/7130F REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
11-1
Guide to the Troubleshooting Procedure
This chapter provides troubleshooting instructions in the form of tables prepared based on
generally found flow charts. Study the following for an idea of how to use them:
AC power is absent.
YES/NO
NO
NO
NO
YES
Cause
Power plug
Covers
Power source
------------
Step
1
2
3
4
Checks
Is the power plug connected to the
power outlet?
Are the front door and delivery cover
closed fully?
Is the rated voltage found at the power
outlet?
Is the rated voltage present between J1-
1 and -2? (J1 is found near the power
cord mount.)
Action
Connect the plug.
Close the door or the
cover.
Inform the user that
Go to step 6.
(Rest omitted.)
• To find out the cause (possible fault) of a specific problem, see the "Cause" column.
If the problem is "AC power is absent," you may suspect that the power plug is disconnected,
covers are not closed fully, or power is absent at the main source.
• If you want to find out the checks to make or action to take, go through the steps: answer the
questions under "Checks"; if yes, take the action shown. Otherwise, go to the next step and
make the indicated checks.
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