CHAPTER 2 OUTLINE OF OPERATION
b. 2- /3-Hole Type
The home position is identified when the punch home position sensor is ON. To make
two holes, the punching operation for the first sheet ends when the punch shaft rotates 180°
(half circumference) and the punch home position sensor goes ON. At this time, the 3-hole
puncher makes a single round trip in escape direction (moving up the hole puncher) on a
half circumference of the punch shaft.
The punching operation for the second sheet ends when the Punch shaft has rotated 180°
counterclockwise and the punch home position sensor goes ON (half circumference). At this
time, the 3-hole puncher makes a single round trip in escape direction (moving up the hole
puncher) on the other half circumference of the punch shaft.
The punching operation takes place as follows when making two holes in two sheets of
paper:
1) A hole is made along the trailing edge of the 1st sheet.
Punch home position
sensor (PI1P)
Eccentric cam
Die
Die
(punch shaft at rest/
2-54
COPYRIGHT © 2001 CANON INC.
Chap02.p65
Sensor flag
Punch shaft
Hole
puncher
Paper
(punch shaft CW rotation
home position)
by 90˚/hole made)
F02-602-04
2000 2000 2000 2000
54
Waste paper
(punch shaft CW rotation by 180˚/
end of punching operation)
CANON SADDLE FINISHER G1 REV.0 MAR. 2001
3/28/01, 12:07 PM