Canon NP6218, FY8-13EX-000 service manual Protection Mechanisms for the Power Supply Circuit

CHAPTER 7 EXTERNALS/AUXILIARY MECHANISMS

D. Protection Mechanisms for the Power Supply Circuit

The composite power supply PCB is equipped with an overcurrent detection circuit; if a short circuit occurs in a load for some reason, the protection mechanism is activated to stop the output.

When the output is cut out, you may reset the output by opening the front door to turn off the door switch, correcting the load, and turning on the door switch and power switch (SW829) once again.

Caution:

Be sure to disconnect the connector (J4) of the fixing heater before resetting the

output.

Repeated short circuiting and resetting can cause the built-in fuse (FU101) to blow.

COPYRIGHT © 1997 CANON INC. CANON NP6218 REV. 0 MAY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON) 7-5