Canon iR8500 Servise Manual page 276

1 Guide to the Troubleshooting Tables
The troubleshooting tables used in this chapter are based on commonly found trouble-
shooting flow charts; study the following for an idea of how to use the tables:
EX: The AC power is absent.
Power plug
1) Is the power plug connected?
NO:
Covers
2) Is the front cover closed properly?
NO:
Main power supply
3) Is the rated voltage present at the outlet?
NO:
----------
4) Is the rated voltage present between J1-1 and J1-2? (J1 is found
YES: Go to step 6).
Rest omitted.
To find out the possible cause (faulty part) of a specific problem, see the "Cause" column
of the table. In the case of the above, i.e., "absence of AC power," suspect that the power
plug may be disconnected, the front cover may not be closed properly, or the main power
supply is absent.
To find out checks to make and actions to take for a specific problem, make the check
indicated under "Checks" and answer the question in terms of "YES" or "NO"; if yes,
take the action indicated, otherwise, go to the next step.
COPYRIGHT© 2001 CANON INC.
Connect the plug.
Close the cover.
The problem is not of the copier. Advise the user.
near the power cord base.)
2000 2000 2000 2000
CHAPTER 6 TROUBLESHOOTING
CANON iR8500 REV.0 MAR. 2001
6-1