Canon Finisher-Q1, Service Manual

Page: 29 / 64

Chapter 2
2-7
2.3 Power Supply
2.3.1 Power Supply Route
0008-3836
The puncher unit is supplied with 24 V, 13 V, and 5 V from the finisher controller PCB when the power switch of
the host machine is turned ON.
24 V is used to drive the motor/solenoid. 13 V is used to drive sensors (motor HP sensor/motor clock sensor) and the
LED on the punch dust full sensor PCB, 5 V is used to drive sensors (trailing edge sensor/punch dust full sensor) and
the IC on the punch controller PCB.
F-2-9
2.3.2 Protection Function
0008-3838
The 24 V line used to drive the motor and solenoid is provided with a fuse which is blown when an excessive current
flows.
24V
5V
Finisher
controller
PCB
24V
5V
5V
Punch controller PCB
Punch motor
Photosensor PCB
Logic
5V
LED PCB
24V
Punch slide solenoid*1
13V 13V
LED (punch dust full sensor PCB)
13V
Punch motor HP senmsor
13V
Punch motor clock sensor
5V
Punch dust full sensor PCB
FU1
*1 Puncher unit R1 only