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CHAPTER 2 OUTLINE OF OPERATION
8.2 Puncher Unit (option)
8.2.1 Outline
When the host machine is turned on, the puncher unit is supplied by the finisher control-
ler PCB with 24-V and 5-V power.
The 24-V power is used to drive the motors, while the 5-V power is used by sensors and
the ICs on the punch controller PCB.
The 24-V power to the motors will be cut off when the joint switch (MS2) or the front
door switch (MS1) of the finisher unit is open.
F02-802-01 is a block diagram for the power supply system:
Finisher
controller
PCB
8.2.2 Protective Mechanisms
The 24-V system used to drive the punch motor (M1P) and the horizontal registration mo-
tor (M2P) is equipped with a built-in fuse which melts in the presence of overcurrent.
2-64
COPYRIGHT © 2001 CANON INC.
Chap02.p65
24 V
Punch controller PCB
5 V
F02-802-01
2000 2000 2000 2000
64
24 V
Motors
5 V
Sensors
5 V
Logic system
CANON SADDLE FINISHER G1 REV.0 MAR. 2001
3/28/01, 12:07 PM
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