Specifications

2001 CANON INC. 2000 2000 2000 2000 CANON DADF-J1 REV.0 MAR.2001

CHAPTER 2 OPERATIONS AND TIMING

2-1

1 Basic Construction

1.1 Outline of the Electrical Circuitry

The electrical mechanisms of the DADF are controller by the ADF controller PCB, which

is a microprocessor (CPU).

The CPU interprets input from the sensors and signals from the copier, and generates sig-

nals to drive such DC loads as motors and solenoids according to pre-determined timing of

operation.

F02-101-01

CPU

(Q1)

ROM

(IC1)

EEPROM

(IC2)

RAM

(Q4)

D/A

(Q9)

IPC

(Q2)

+5V +24V +5R+24R

Power supply PCB

Copier

Solenoid

Clutch

Original

indicator

LED PCB

Sub tray PCB

Reversal

motor

driver PCB

Belt motor

driver PCB

Motor

Sensor

Motor

ADF controller PCB

DC5V

(Q65)