Stapler Unit - Canon FINISHER-C1 Service Manual

CHAPTER 2 FINISHER UNIT BASIC OPERATION
Swing guide
F.

Stapler Unit

Stapling is executed by the stapler motor (M6). A single rotation of the cam by the motor results
in one stapling operation.
The cam is checked by the stapling home position sensor (PI21) to find out whether it is in
home position.
The stapler motor is controlled by the microprocessor (Q1) on the finisher controller so that it
is rotated clockwise or counterclockwise.
When the stapling home position sensor is off, the finisher controller PCB rotates the stapler
motor counterclockwise until the sensor turns on so as to return the stapling cam to its initial state.
The presence/absence of a staple cartridge is detected by the staple cartridge detecting switch
(MS8).
The presence/absence of staples inside the staple cartridge is detected by the staple detecting
switch (MS9). The staple edge sensor (PI20) is used to find out whether a staple has been edged out
to the end of the cartridge.
The finisher controller PCB does not drive the stapler motor (M6) unless the swing guide
closed detecting switch 2 (MS6) is on (i.e., the swing guide is closed). This is to protect against
injuries that could occur as when a finger is stuck inside the stapler.
2-28
Figure 2-240
COPYRIGHT © 1998 CANON INC. FINISHER-C1/SADDLE FINISHER-C2 REV. 0 DEC. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON)
Delivery roller
Delivery motor (M2)