Inputs To The Adf Controller Pcb - Canon DADF-B1 Service Manual

CHAPTER 2 BASIC OPERATION
B. Inputs to the ADF Controller PCB

1. Inputs to the ADF Controller PCB (1/2)

Feed motor clock sensor
SR1
Pickup unit cover sensor
SR2
Separation sensor
SR3
Original set sensor
U503
Pre-registration sensor
U502
Original width detecting
volume
U508
Last original sensor
U504
2-2
COPYRIGHT © 1999 CANON INC. CANON DADF-B1 REV.0 APR. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
3 3 1 3 J6A-3
2 2 2 2
J6FA-2
1 1 3 1 J6FA-1
J101 J1101
11 J6A-4
3 3 1
9
1 1 3 J6FA-6
10 J6FA-5
2 2 2
J102
3 3 4 8 J6A-7
6
1 1 6 J6FA-9
2 2 5 7 J6FA-8
J103
4
4 8 4 J6A-11
3 3
9 3 J6FA-12
2 2 10
2 J6FA-13
1 1 J6FA-14
11 1
5
5 7 5 J6FA-10
J301 J1102
4
2 J6B-6
3 3 J6FB-5
5 5
J6FB-3
4 4 J6FB-4
1 J6FB-7
1
J201
J6B-8
1 3 1 8
2 2 2 7 J6FA-9
J6FA-10
3 1 3 6
J801
4 5 4
4 J6B-12
3 3 6 3
J6FB-13
2 2 7 2
J6FB-14
1 1 8 1 J6FB-15
5
5 4 5 J6FB-11
J401 J1801
Figure 2-102
ADF controller PCB
+ 5V
While the feed motor is rotating,
FMCK
alternates between '1' and '0'.
+ 5V
When the pickup unit cover is
opened, '0'.
SCVR
(When the light-blocking plate is
not at the sensor.)
+ 5V
When an original is detected, '0'.
SPR
(When the light-blocking plate is
not at the sensor.)
+ 5V
+ 24V
When an original blocks the
EMP
sensor, '0'.
EPLED
+ 5V
+ 24V
When the original blocks the
ENT
sensor, '0'.
ETLED
+ 5V
Generates an analog voltage to
WIDE
suit the width of the original placed
on the original tray.
+ 5V
+ 24V
When an original blocks the
LAST
sensor, '1'.
LTLED