Epson C 2900 Manual

Chapter 7  Wiring Diagrams and Signal Information
Chapter 7  Wiring Diagrams and Signal Information  CONTENTS
Epson AcuLaser C2900N Confidential
1. Connection Wiring Diagram......................................................................................... 7 - 1
1.1 Symbols in the General Connection Wiring Diagram........................................................................ 7 - 1
1.2 General Wiring Diagram...

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1. Connection Wiring Diagram
1.1 Symbols in the General Connection Wiring Diagram
The symbols in the general connection wiring diagram are described below.
Symbol Description
Represents an interconnection between parts using wiring harness or wire.
Represents an interconnection which differs according to the specifications.
Represents an interconnection between parts using a conductive member 
such as a...

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1.2 General Wiring Diagram
PWBA MCU
PL8.2.13
PWBA HVPS
PL4.1.19
P/J16 P161
DRIVE ASSY PH
PL7.1.4 DRIVE ASSY MAIN
PL7.1.2
DRIVE ASSY SUB
PL7.1.1
P/J211P/J21
P/J221P/J22
COLOR MODE
SWITCHING SOLENOID
COLOR MODE
SWITCHING SENSOR
P/J24
P/J261PWBA DUP
PL11.1.16
P/J601
P/J610
P/J272P/J27-B
DRIVE ASSY EXIT
PL11.2.2
DRIVE ASSY DUP
PL11.2.5
CLUTCH DUP 
PL11.2.2
P/J602
P/J603
P/J604
SENSOR HUM
PL8.2.7P/J20
P/J42...

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2. Interconnection Wiring Diagram of Parts
2.1 Notes on Using the Wiring Diagram between Parts
The following describes the legend of the wiring diagrams between parts shown on the following pages.
Symbols  Description
Denotes a plug.
Denotes a jack.
Denotes Pin yy and Jack yy of the connector Pxx and Jxx.
Denotes the parts.
PL X.Y.Z implies the item Z of plate (PL) X.Y in Chapter 5. 
Parts List.
Denotes...

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Confidential Denotes a connection between wires.
I/L +24VDCDenotes DC voltage when the interlock switch in HNB MCU WITH 
CPU turns on.
+5VDC
+3.3VDCDenotes DC voltage.
SG Denotes signal ground.
AG Denotes analog ground.
RTN Denotes the return. Symbols  Description 

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2.2 Configuration of the Interconnection Wiring Diagram of Parts
The interconnection wiring diagram is divided into 11 sections. 
§ 1 to § 11 indicate details of the interconnections of parts.
§ 1    DC POWER SUPPLY
Connections of PWBA LVPS with PWBA MCU.
Connections of HARN ASSY SW PWR with PWBA LVPS. 
Connections of HARN ASSY INTERLOCK with PWBA LVPS.
Connections of SWITCH with PWBA MCU.
§ 2    FEEDER,...

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Confidential § 10    250 FEEDER
Connections of PWBA FEEDER H with PWBA MCU.
Connections of PWBA FEEDER H with CLUTCH ASSY PH TURN.
Connections of PWBA FEEDER H with PATH SENSOR.
Connections of PWBA FEEDER H with SOLENOID FEED.
Connections of PWBA FEEDER H with CST NO PAPER SENSOR.
Connections of PWBA FEEDER H with DRIVE ASSY OPTION.
§ 11    DUPLEX
Connections of PWBA DUP with PWBA MCU.
Connections of PWBA DUP with...

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§ 1 DC POWER SUPPLY
PWBA MCU
PL8.2.13
POWER
CONTROL
FA N
CONTROL
1
3 P/J44I/L +24VDC
1
2 P/J502
1
2
3 P/J503
LINE
NUT
FG
FA N
PL8.1.1
FAN +24VDC
FAN ALARM
SG
I/L +24VDC
P/J501 P/J14
+3.3VDC +5VDC
1
2
3
4
7
8
9
10
11
12
13
P/J15
1
2SG
14
13
12
11
7 8
6
5
4
3
2
4
2 1
2
3
HARN ASSY INTERLOCK
PL8.2.5
R/H COVER OPEN
SG1
2 2
1P/J29 P/J291
SWITCH
PL5.1.9
141
SG +5VDC
+3.3VDC
SG
LV TYPE
69FSR ENB510HEAT 1
DEEP...

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Confidential - LVPS overcurrent protection circuit
This circuit stops all outputs, if the power supply voltage 24VDC, 5VDC, or 3.3VDC is shorted.
- LVPS overvoltage protection circuit
This circuit stops all outputs, if the power supply voltage 24VDC, 5VDC, or 3.3VDC exceeds the
specified voltage respectively.
At this time, the operating point is 36VDC or less for 24VDC, 7VDC or less for 5VDC and 3.3VDC. Signal line...

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§ 2 FEEDER, SSI & REGI
PWBA MCU
PL8.2.13HARN ASSY L SIDE
PL3.1.18
9
10
11
3
2
1
PULL UP +3.3VDC
SG
PAPER EMPTY SENSED (L) +3.3VDC
CST NO PAPER
SENSOR
PL3.2.13 P/J234
I/L +24VDC
CST FEED CL ON (L) +24VDC2
1
1
2
1
2SOLENOID FEED MSI
PL3.1.11
P/J231 P/J23
+3.3VDC
6
7
8
HARN ASSY KSNR REGCL
PL9.1.9
PAPER  EMPTY SENSED (H) +3.3VDCSG
P/J233
3
2
1 PULL UP +3.3VDC
SSI NO PAPER
SENSOR
PL3.2.13
3
4
5
REGI SENSED...