Correcting Displacement Of The Fixing Film; Outline - Canon NP6218 Service Manual

F. Correcting Displacement of the Fixing Film

1. Outline

The fixing film at times becomes displaced toward the front or rear as it keeps
turning. To correct such displacement, the copier is equipped with a correction
mechanism.
The control is executed by the fixing film sensor (PS9), which detects the position of
the film, and the fixing film motor (M4), which physically corrects displacement.
Reference:
If you turn on the power by inserting the door switch actuator into the door switch
with the top body of the copier open, E007 will be detected, since the condition
prevents the fixing film from turning.
COPYRIGHT © 1997 CANON INC.
DC controller PCB
Main motor
driver PCB
M4
M1 Fixing film motor
Main motor
Fixing film sensor
Figure 6-105
CANON NP6218 REV. 0 MAY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Tension roller
Delivery
Driver roller
Fixing heater
CHAPTER 6 FIXING SYSTEM
Fixing film
(front)
Pressure roller
6-7