Canon Puncher Unit-L1, Service Manual

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Chapter 2
2-7
F-2-7
When two holes are punched, the 3-hole puncher is fed reciprocally in the escape direction (hole puncher rise
direction) as shown below.
F-2-8
2.2.4 Horizontal Registration Operation
0003-4700
Horizontal registration drive of the punch slide unit is performed by the horizontal registration motor (M62). The
home position of the punch slide unit is detected by the horizontal registration home position sensor (PI61). The
punch slide unit detects the trailing edge of the paper by the trailing edge sensor (LED5, PTR5) and horizontal
registration sensors (LED1 to 4, SREG1 to 4) and is moved to the trailing edge position matched to the paper size.
The following shows horizontal registration operation.
1) When the leading edge of the paper from the host machine is detected by the trailing edge sensor (LED5, PTR5)
on the puncher unit, the horizontal registration motor (M62) starts to move the punch slide unit towards the front.
[punch shaft stopped/
home position] [punch shaft is rotated 90˚
in the reverse direction/
hole punched] [punch shaft is rotated 180˚
in the reverse direction/
punch operation completed]
[punch shaft is rotated 90˚
in the reverse direction/
hole puncher rises to
topmost position] [punch shaft is rotated 180˚
in the reverse direction/
hole puncher returns to
original position] [punch shaft stopped/
home position]