Canon DADF-M1 Service Manual Page 23

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COPYRIGHT
©
2003 CANON INC. 2000 2000 2000 2000 CANON DADF-B1/K1 REV.1 JAN. 2003
CHAPTER 2 Operation Overview
2-2
1.2 ADF controller circuit board input
1.2.1 ADF controller circuit board input (1/2)
F02-102-01
Toggles between ‘1’ and ‘0’
as the feed motor rotates.
Pickup unit cover sensor
Separation sensor
Document set sensor
Goes to ‘0’ when a document is
detected.
(I.e. when there is no light
blocking plate in the sensor.)
Goes to ‘0’ when the document
blocks the sensor.
Goes to ‘0’ when the pickup
unit cover is opened.
(I.e. when there is no light
blocking plate in the sensor.)
Outputs analogue voltage
corresponding to the width of
the documents stacked on
the document tray.
Pre-registration sensor
Document width detection dial
Goes to ‘0’ when the document
blocks the sensor.
Final document detection sensor
Goes to ‘1’ when the
document blocks the sensor.
J1101J101
SR1
3
2
1
3
2
1
J6A-3
+5V
J6FA-2
FMCK
J6FA-1
1
2
3
1
3
2
3
2
1
3
1
2
3
1
2
J102
SR2
11
9
10
J6A-4
+5V
J6FA-6
SCVR
J6FA-5
4
6
5
9
8
10
11
7
3
1
2
3
4
2
1
5
3
1
2
3
4
5
2
1
J103
SR3
U503
8
6
7
3
4
2
1
5
J6A-7
J6A-11
-12
-13
-14
-10
+5V
+5V
+5V
+24V
J6FA-9
SPR
EMP
EPLED
J6FA-8
1
2
3
8
7
6
3
2
1
1
2
3
J6B-8
+5V
J6FA-9
WIDE
-10
3
4
5
4
1
3
2
1
5
4
J301
J201
J1102
U502
U508
J6B-6
J6FB-5
J6FB-3
J6FB-4
J6FB-7
+24V
ENT*
ETLED
+5V
3
4
2
1
5
6
5
7
8
4
3
4
2
1
5
3
4
5
2
1
J401 J1801
U504
J801
J6B-12
-13
-14
-15
-11
+24V
LAST
LTLED
ADF controller PCB
Feed motor clock sensor
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