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CHAPTER 2 OUTLINE OF OPERATION
1.2 Outline of the Electrical Circuitry
The sequence of finisher operations is controlled by the finisher controller PCB. The fin-
isher controller PCB is a 16-bit microprocessor (CPU), and is also used for combination
with the host machine (serial).
The finisher controller PCB drive motors and other loads in response to the various com-
mands from the host machine. It also communicates such data as on the states of various
sensors and switches to the host machine by way of the serial communication line.
The ICs mounted to the finisher controller PCB have the following functions:
•
IC13 (CPU)
Controls sequence of operations.
•
IC12 (EEP-ROM)
Backs up adjustment settings.
•
IC6 (EP-ROM)
Stores sequence programs.
F02-102-01 shows the flow of signals between finisher and options controller:
Finisher
controller
PCB
Communica-
Regulator IC
2-2
COPYRIGHT © 2001 CANON INC.
Chap02.p65
•
•
Finisher unit
Motor
IC13
CPU
Clutch
IC12
Switch
EEP-ROM
Sensor
IC11
Puncher unit (option)
tion IC
IC6
Punch controller
EP-ROM
PCB
IC1
Motor
F02-102-01
2000 2000 2000 2000
2
IC11 (communication IC)
Communicates with the host machine.
IC1 (regulator IC)
Generates 5 V.
Host machine DC
controller PCB
CPU
Sensor
CANON SADDLE FINISHER G1 REV.0 MAR. 2001
3/28/01, 12:07 PM
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