Filter
Top Products
COPYRIGHT
©
1997 CANON INC. CANON NP6218 REV. 0 MAY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
10-1
The troubleshooting procedures in this manual are prepared in the form of tables,
rather than flow charts. Study the following for an idea of how to consult the tables.
EX. AC power is absent.
■ To find out the cause (faulty part) of a single problem, see the Cause/Fault column.
In the case of “AC power is absent,” you will learn that the power plug may not be
connected, the covers may not be closed properly, or the main power may be absent.
■ To find out checks to make or remedies to provide for a single problem, see the
Remedy column as guided by YES/NO to the checks; or, move to the next step as
necessary.
■ The instruction “Measure the voltage between J109-1 (+) and J109-2 (–) on the DC
controller PCB” asks you to connect the meter’s positive probe (+) to J109-1 and
negative probe to J109-2 (–).
Is the power
plug connected to
the outlet?
Connect the
plug
Checks YES/NO Remedies
NO
1
Step
Are the front door
and delivery cover
closed properly?
Close the door
and cover.
NO
2
Is the specified
voltage present at the
power outlet?
The problem is not
the copier’s: advise
the user.
NO
3
YES
YES
YES
Guide to Troubleshooting Tables
Cause/Fault
Power plug
Covers
Main power
Step
1
2
3
4
YES/NO
NO
NO
NO
YES
Checks
Is the power plug
connected to the outlet?
Are the front door and deliv-
ery cover closed properly?
Is the specified voltage
present at the power outlet?
Is the specified voltage pre-
sent between J1-1 and J1-
2? (J1 is located near the
power supply cord mount.)
Remedies
Connect the plug.
Close the door and cover.
The problem is not the
copier’s; advise the user.
Go to step 6.