Canon Duplex Unit-A1 Service manual

Sep 14 2005
General Timing Chart / General
Circuit Diagram
Duplex unit
Duplex Unit-A1

IMPORTANT
This documentation is published by Canon Inc., Japan, to serve as a source of reference for
work in the field.
Specifications and other information contained herein may vary slightly from actual machine
values or those found in advertising and other printed matter.
Any questions regarding the information contained herein should be directed to the Copier Service
Department of the Sales Company.
This documentation is intended for all sales areas, and may contain information not applicable
to certain areas.
Reproduction without permission not allowed.
Use of this manual should be strictly supervised to avoid disclosure of confidential information.
COPYRIGHT 2001 CANON INC.
Printed in Japan
Caution
Use of this manual should be strictly supervised to avoid disclosure of confidential information.

Contents
1 General Circuit Diagram......................................................................................................................... 1
General Circuit Diagram........................................................................................................................ 1

1
1 General Circuit Diagram
General Circuit Diagram
Duplex Unit-A1 General Circuit Diagram
F-1-1
MM
SL
21
3
+24Vop SL_ON A /A /B B A /A
GND +24Vop GND
/B B GND PP SENSOR2
+3.3R DUP_CLK DUP_RXD DUP_TXD +5R MD0 MD2 FW /RES GND
45678910
GND RESET PGM TXD SCLK VDD VPP BUSY RXD GND
/DUP_STB +24Vop
Option Power Supply PCB
(Host Machine) DC Controller PCB (Host Machine)
SNSR LED2 SNSR LED1 GND PP SENSOR1
J1008
21
J1002
Duplex Controller PCB
1181234567 910
J1001
J271LH 716543289101112
J271L
1234
J55
123 J274
1234
J1006
12345
J1005
12
SL1001
Duplex Flapper Solenoid
Duplexp Paper Sensor 1 Duplex Paper Sensor 2 Duplex Feed Motor Duplex Reversal Motor
123456
J1003
12 11 8 1234567910
J271D
11 10 9 8 2345617
J218
1234
J275
123 J273
SR1002 SR1003
1234
M1001
1234
J276
1234
M1002

Sep 14 2005