Alignment Control - Canon SADDLE FINISHER K3 Service Manual

CHAPTER 2 OPERATION OVERVIEW

12.3.4 Alignment control

Each time paper is collected, the jogging plate motor (M35) drives the jogging plates
which align the left and right edges of the paper. The jogging plate motor is a 4-phase step-
ping motor. The position of the jogging plates is detected by the number of motor pulses
from the jogging plate home position sensor (PI48).
An example of an operation of the saddle stitcher in the case of two sheets of paper is
shown below.
1) When the first sheet of paper is collected, the jogging plates strike the left and right
edges of the paper. (First alignment) The jogging plates leave the home position in ad-
vance and wait at a position 10 mm from the edge of the paper.
Jogging plate
Paper positioning plate
2) The jogging plates move slightly away from the edge of the paper, then strike the edge
again. (Second alignment)
2-112
COPYRIGHT© 2001 CANON INC.
Paper
Jogging plate
Jogging plate home
position sensor
(PI48)
F02-1203-09
F02-1203-10
2000 2000 2000 2000 CANON SADDLE FINISHER K3/K4 REV.0 MAR. 2001