Canon DADF-M1 Service manual

Feb 21 2005
General Timing Chart / General
Circuit Diagram
Feeder
DADF-M1

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 Genelal Timing Chart............................................................................................................................................... 1
Timing Chart (small-size, single-sided original; continuous copying) ................................................................... 1
Timing chart (small-size, double-sided original; high-speed; continuous copying) ............................................... 1
Timing Chart (small-size, double-sided original; low-speed; continuous copying) ............................................... 2
Timing Chart (large-size, single-sided original; continuously copying)................................................................. 2
Timing Chart (large-size, double-sided; continuously copying)............................................................................. 3
2 General Circuit Diagram .......................................................................................................................................... 5
General Circuit Diagram ......................................................................................................................................... 5

1
1 Genelal Timing Chart
Timing Chart (small-size, single-sided original; continuous copying)
F-1-1
Timing chart (small-size, double-sided original; high-speed; continuous copying)
F-1-2
CL1
PI7
PI1
PI8
PI9
M1
M2
M3
M4
SL2
PI5
Separation rear
sensor
Registration
sensor
Read sensor
Delivery reversal
sensor
Pickup motor
Feed motor
Delivery reversal
motor
Release motor
Locking solenoid
Pickup clutch
Original placement
sensor
Start key pressed
separating/moving
the 1st original reading the 1st original separating/feeding the 2nd original delivering the 1st original reading the 2nd original
separating/moving the 3rd original
delivering the 2nd original
reading the 3rd original delivering the 3rd original
CL1
Separation rear
sensor PI7
Registration
sensor PI1
Read sensor PI8
Delivery reversal
sensor PI9
Pickup motor M1
Feed motor M2
Delivery reversal
motor M3
Release motor M4
Locking solenoidSL2
PI5
Start key pressed
Pickup clutch
separating/
moving the
1st original
reading the
face of the
1st original
turning over
the 1st original reading the back of the 1st original
separating/moving
the 2nd original
idly turning over/
delivering the 1st
original
moving the 2nd original
reading the
face of the
2nd original
turning over
the 2nd original reading the back of the
2nd original
idly turning
over/delivering
the 2nd original
Motor rotation reversed
Original placement
sensor

2
Timing Chart (small-size, double-sided original; low-speed; continuous copying)
F-1-3
Timing Chart (large-size, single-sided original; continuously copying)
F-1-4
CL1
PI7
PI1
PI8
PI9
M1
M2
M3
M4
SL2
PI5
separating/moving
the 1st original reading the face of the 1st original turning over the
1st original reading the back
of the 1st original
separating/moving
the 2nd original
idly moving the
1st originalmoving the
2nd original
reading the face
of the 2nd original
turning
over the
2nd
original
reading the
2nd original
idly
moving
the 1st
original
idly moving/
delivering the
2nd original
Original placement
sensor
Pickup clutch
Separation rear
sensor
Registration
sensor
Read sensor
Delivery reversal
sensor
Pickup motor
Feed motor
Delivery reversal
motor
Release motor
Locking solenoid
Start key pressed
separating/moving
the 1st original reading/delivering the 1st original
separating/feeding the 2nd original reading/delivering the 2nd original separating/moving the 3rd original reading/delivering the 3rd original
CL1
PI7
PI1
PI8
PI9
M1
M2
M3
M4
SL2
PI5
Start key pressed
Original placement
sensor
Pickup clutch
Separation rear
sensor
Registration
sensor
Read sensor
Delivery reversal
sensor
Pickup motor
Feed motor
Delivery reversal
motor
Release motor
Locking solenoid

3
Timing Chart (large-size, double-sided; continuously copying)
F-1-5
separating/moving
the 1st original reading the face of
the 1st original turning over the 1st original reading the back of the 1st original idly moving the 1st original delivering the 1st original
reading the 2nd original
turning
over the
2nd original
reading the
back of the
2nd original
idly moving/
delivering the
2nd original
CL1
PI7
PI1
PI8
PI9
M1
M2
M3
M4
SL2
PI5
Original placement
sensor
Pickup clutch
Separation rear
sensor
Registration
sensor
Read sensor
Delivery reversal
sensor
Pickup motor
Feed motor
Delivery reversal
motor
Release motor
Locking solenoid
Start key pressed

5
2 General Circuit Diagram
General Circuit Diagram
DADF-M1 General Circuit Diagram
F-2-1
LGL sensor
AB/inch sensor
Original
width volume
ADF cover
open/closed sensor
Original
placement sensor
Original
placement LED
Post-separation
sensor
Delivery reversal
sensor
Stamp solenoid
Engagement
HP sensor
Read sensor
Registration sensor
Feed motor
Locking solenoid
Locking motor
Pickup clutch
Delivery reversal
motor
Pickup motor
Cooling fan
ADF driver PCB
1234 5678 12 345678 12 34 5 6 78 9101112 1234 5 6 78 9 12 34 567 12 34 5678 12
123
1234 567 12 3456 1234 5678 12 3456 12 3
1234
1234
123
1234
M1
FM1
A
B
C
D
E
F
G
H
I
1
2
3
4
5
6
7
8
9
10
11
12
13
1
2
3
4
5
6
7
8
9
10
11
12
13
A
B
C
D
E
F
G
H
I
PI4
PI3
VR1
PI6
PI5
LED
SL1
PI1
M2
SL2
M4
CL1
M3
PI8
PI9
PI7

Feb 21 2005