Finisher Controller Pcb - Canon Finisher-AB1 Service Manual

3.2.2 Finisher Controller PCB

The finisher controller PCB drives the various loads (motors, solenoids) of the machine in response to the
commands from the host machine (copier), and indicates the states of the sensors and switches to the host
machine.
It also serves to control the punch unit and the saddle finisher controller PCB.
Saddle stitcher
controller PCB
Punch unit
(accessory)
To host machine
The machine uses the following ICs, each possessing specific functions:
IC Description
CPU Controls the communications with the host machine; controls ASIC1/ASIC2.
ASIC1 Controls the communications with accessories; controls the drive to various loads.
ASIC2 Controls the drive to various loads.
ROM Stores the firmware used to operate the machine.
EEPROM Stores counter readings and adjustment values.
Finisher
controller PCB
CPU
ASIC1
ASIC2
ROM
EEPROM
F-3-3
Intermediate
tray driver
PCB
Motor,
Solenoid
Switch,
Sensor
Chapter 3
0015-2069
Motor,
Solenoid
Switch,
Sensor
3-3