Canon FINISHER-C1 Service Manual page 121

4. Double Folding a Stack
To fold a stack consisting of 10 or more A4R or LTR-R sheets, folding is executed twice for the
same stack.
The folding rollers rotate in reverse for an equivalent of 20 mm after gripping the stack for a
length of 20 mm, enabling the folding rollers to apply an increased degree of pressure along the
crease on the stack. Then, the folding rollers rotate normally, and the paper pushing plate returns to
home position while the stack is being delivered.
This way, a stack requiring a large force may properly be folded with less pressure.
M2S
Folding
motor
Folding motor
COPYRIGHT © 1998 CANON INC.
CHAPTER 3 SADDLE STITCHER UNIT BASIC OPERATION
Paper pushing
plate motor
Folding roller
Figure 3-505
M2S
Figure 3-506
FINISHER-C1/SADDLE FINISHER-C2 REV. 0 DEC. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON)
Paper pushing plate
1. The paper pushing plate
pushes the stack in the
direction of the folding
rollers.
M8S
2. The folding rollers grip the
stack for a length of about
20 mm.
3-33