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Chapter 7 Wiring Diagrams and Signal Information
Option 550 Paper Feeder
Signal line name Description
TRAY SNS
Signal detecting an Option 550 Paper Feeder. ID is recognized by the number of fall-
ing edges.
/LOW-PAPER FEED
SNR ON
Signal from SENSOR LOW PAPER. This signal goes Low when light is received.
A and B Excitation signal for MOTOR ASSY OPT FDR 45. Phases A and B.
/A and /B Excitation signal for MOTOR ASSY OPT FDR 45. Phases /A and /B.
CLUTCH-TURN ON Control signal for CLUTCH ASSY PH. Low: ON / High: OFF
CLUTCH-FEED ON Control signal for CLUTCH PR-REGI. Low: ON / High: OFF
/NO-PAPER FEED
SNR ON
Signal from SENSOR NO PAPER. This signal goes Low when light is received.
P/J2083
8
7
6
5
4
3
2
1
9
10
8
7
6
5
4
3
2
1
9
10
P/J20
3
4
5
6
7
8
9
10
2
1
3
4
5
6
7
8
9
10
2
1
P/J83
24V DC
RTN
RTN
RTN
LG
TRAY SNS
TXD
RXD
24V DC
3.3V DC
P/J801
3
4
5
2
1
3
2
1
4
5
3
4
5
2
1
P/J80
SW 4
SW 3
SW 2
SW 1
LG
P/J820
3
4
5
2
1
3
2
1
4
5
2
3
4
5
1
P/J82
24V DC
A
/A
/B
B
P/J855
3
4
2
1
5
4
5
6
3
2
7
1
6
7
P/J853
2
1
1
2
2
3
4
5
6
7
1
P/J85
2
3
4
5
9
10
11
6
7
8
1
9
8
7
6
2
1
5
4
3
10
P/J84
P/J8483
24V DC
RXD
TXD
TRAY SNS
LG
3.3V DC
RTN
RTN
RTN
N.C.
24V DC
24V DC
CLUTCH
-TURN ON
24V DC
Pull Up 3.3V
LG
/NO-PAPER
FEED SNR ON
CLUTCH
-FEED ON
HVPS/MCU
PL12.1.19
HARNESS
ASSY
FDR1
PL12.1.21
HARNESS
ASSY
FDR2
PL20.1.5
HARNESS
ASSY FDR5
PL20.1.26
HARNESS ASSY
CLSNR1
PL20.2.31
HARNESS ASSY
CLSNR2
PL20.1.36
HARNESS
LOW PAPER
PL20.1.33
HARNESS ASSY
FDR MOT PL20.1.37
HARNESS
ASSY SIZE
FDR 2
PL20.1.35
HARNESS
ASSY SIZE
FDR 1
PL20.1.19
MOTER ASSY
OPT FDR 45
PL20.1.17
OPT ASSY
SIZE
PL20.1.18
SENSOR
LOW PAPER
PL20.1.30
SENSOR NO
PAPER
PL20.2.33
PWBA FEEDER 550
PL20.1.34
CLUTCH
ASSY PH
PL20.2.21
CLUTCH
PR-REGI
PL20.2.22
3
2
1
P/J852
1
2
3
P/J81
Pull Up 3.3V
LG
/LOW-PAPER FEED SNR ON
3
2
1
P/J810
P/J854
2
1
1
2
3
2
1
4
5
P/J800
P/J802
3
4
5
2
1
3
2
1
4
5
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