B. How to Read the Troubleshooting Tables
The troubleshooting tables from III. to V. in this chapter are explanations of the general servicing procedure.
The example below shows how to read the tables.
(Example) There is no power.
Is the printer plugged in?
Plug it in.
Upper main body
Is the upper main body closed?
Are the power switch and circuit
Is normal voltage supplied at the
This is not a problem with the
printer. Inform the customer.
Insert a screwdriver into the
Check the door switch actuator
door switch hole. Does the printer
and readjust it if necessary.
only the cause of what is considered to be the problem (name of a faulty part) is desired, look under
"cause". With the problem "no power" in the chart above, the power cord, upper main body, power switch, cir-
cuit breaker, line voltage or door switch could be faulty.
To solve a problem, begin at step one and perform the check explained there.
the result is not as indicated
in the "Result" column, go to the next step. But if the result is as printed, perform the measure in the right-
hand column and observe the result.
the problem is not eliminated, continue to the next step.
Plug it in.
BY CANON INC. CANON LBP-CX SERIES REV.2 JULY 1985 PRINTED IN JAPAN (IMPHIME AU JAPOllJ