Basic Construction; Outline Of The Electrical Circuitry; Host Copier; Controller Pcb - Canon DADF-G1 Service Manual

1 Basic Construction

1.1 Outline of the Electrical Circuitry

The electric mechanisms of the machine are controlled by the DADF controller PCB,
which is equipped with a microprocessor (CPU).
The microprocessor reads the input signal from sensors and the signals from the host
copier to generate signals used to drive such DC loads as motors and solenoids at such times
as programmed in advance.
Sensor
Variable
resistor
COPYRIGHT© 2000 CANON INC.
DADF controller PCB
CPU
(Q1)
ROM
(Q2)
RAM
(Q4)
Communi-
cation IC
(Q3)
24V
5-VDC
power
supply
Accessories
power supply

Host copier

F02-101-01
CANON DADF-G1 REV.0 OCT. 2000
CHAPTER 2 OPERATIONS AND TIMING
Motor
Solenoid
Clutch
Brake
5V
Indicator
LED PCB
Motor
2-1