Canon Finisher-R1, Service Manual

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Chapter 2
2-1
2.1 Basic Operation
2.1.1 Basic Operation
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The finisher is designed to deliver copies arriving from its host machine, and its modes of delivery include simple
stacking, job offset, and staple.
All operations involved in these modes are controlled by the finisher controller PCB, according to the appropriate
commands from the host machine.
F-2-1
Memo: The term job offset refers to shifting each sorting job, separating a single stack into several stacks.
2.1.2 Overview of the Electrical Circuitry
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The finisher’s sequence of operation is controlled by the finisher controller PCB. The finisher controller PCB is a
16-bit microprocessor (CPU), and is used for communication with the host machine (serial) in addition to controlling
the finisher’s sequence of operations.
The finisher controller PCB responds to the various commands coming from the host machine through a serial
communications line to drive solenoids, motors, and other loads. In addition, it communicates the finisher’s various
states (information on sensors and switches) to the host machine through a serial communications circuit.
The ICs used on the finisher controller PCB are designed for the following:
• IC101 (CPU)
Controls sequence of operations.
Contains sequence programs.
Swing guide drive system
Alignment drive system
Stapler drive system
Delivery drive system
Feeder drive system
Shutter drive system
Tray drive system
Control system
Tray drive system