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a. 2-Hole, 4-Hole Type
The home position is identified when the punch home position is ON. The punching op-
eration for the first sheet ends when the punch shaft has rotated 180° and the punch home
position sensor goes ON; the punching operation for the second sheet ends when the punch
shaft has rotated 180° in reverse and the punch home position sensor goes ON.
The punching operation takes place as follows when making a hole in two sheets of paper.
1) A hole is punched along the trailing edge of the 1st sheet.
Punch home position
sensor (PI1P)
Eccentric cam
2) A hole is made along the trailing edge of the 2nd sheet.
(punch shaft at rest/
COPYRIGHT © 2001 CANON INC.
Chap02.p65
Sensor flag
Punch shaft
Hole
puncher
Die
Paper
Die
(punch shaft at
(punch shaft CW rotation
rest/home position)
F02-602-02
(punch shaft CCW rotation
home position)
by 90˚/hole made)
F02-602-03
2000 2000 2000 2000
CANON SADDLE FINISHER G1 REV.0 MAR. 2001
53
CHAPTER 2 OUTLINE OF OPERATION
Waste paper
(punch shaft CW rotation by 180˚/
by 90˚/hole made)
punching operation ends)
(punch shaft CCW rotation by 180˚/
end of punching operation)
3/28/01, 12:07 PM
2-53
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