Canon Puncher Unit-L1, Service Manual

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Chapter 2
2-4
F-2-2
2.2.3 Punch Operation
0003-4699
The hole puncher is driven by the punch motor (M61), and its position is monitored by the punch home position
sensor (PI63).
The hole puncher makes a single round-trip movement (punching) as the punch shaft rotates 180°
from home
position.
In the case of a 2-or-3 hole type, the half sector of the punch shaft is used when punching 2 holes while the half sector
on the opposite side is used when punching 3 holes as instructed by the host machine.
<2-/4-hole Type>
PTR1
LED1
2
3
4
5
2
3
4
5
Hor
iz
ontal registr
ation motor (M62) dr
iv
e signal
Punch motor (M61) dr
iv
e signal
Scr
ap full detection signal
(LED6,PTR6) DFULL
Tr
ailing edge detection signal
P
AEND
Hor
iz
ontal registr
ation detection signal
(LED1 to 4, PTR1 to 4) SREG1 to 4
Punch home position (PI63)
detection signal
PUNCHHP
Hor
iz
ontal registr
ation home position (PI61) detection signal
SREGHP
Punch controller PCB (2/2)
Punch motor cloc
k (PI62)
detection signal PUNCHCLK
Punch f
eed motor (M63) dr
iv
e signal
Punch controller PCB (1/2)