Canon CLC 1130, Service Manual

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CHAPTER 2 BASIC OPERATION
2-2
COPYRIGHT © 2002 CANON INC. CANON CLC1100/1130/1150/1160/1180 REV.1 FEB. 2002 PRINTED IN JAPAN (IMPRIME AU JAPON)
B. Electrical Circuitry
1. Outline
The copier’s major electrical functions are controlled by the CPU on the CPU PCB. Table 2-
101 shows the functional assignment of the CPU and the functions of the DIMMs and the RAMs.
2. CPU PCB
The CPU PCB is equipped with three CPUs, and this manual refers to these three as PANEL-
CPU, R-CPU, and DC-CPU with reference to their functions.
Name Description
PANEL-CPU · Controls the control panel, controls service mode, controls
control panel controller communication.
Flash memory (DIMM) · Contains control programs.
RAM · Stores control data.
R-CPU · Controls the scanning lamp, controls the scanner motor,
controls job management, controls scanner (reading).
· Controls image processing, controls fans, controls IPC
(RDF, film projector, Copy Data Controller or Remote
Diagnostic Device ).
· Controls the editor, controls bi-Centronics communication,
controls serial communication.
Flash memory (DIMM) · Contains control programs.
RAM · Stores control data.
DC-CPU · Controls fixing temperature, controls power supply to loads,
controls high voltage, controls potential, controls toner
supply.
· Controls paper feeding, controls output management,
controls motors, controls sensors.
· Controls solenoids, controls clutches, controls fans, detects
paper in cassettes.
· Detects original size, controls the paper deck, controls IPC
(sorter).
Flash memory (DIMM) Contains control programs.
RAM Store control data.
Table 2-101
3. Control Panel
Name Description
CPU · Monitors key input, controls buzzer volume, controls LCD
activation.
Table 2-102