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Epson C 2900 Manual

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    							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 ................................................................................................................... 7 - 2
2. Interconnection Wiring Diagram of Parts ..................................................................... 7 - 3
2.1 Notes on Using the Wiring Diagram between Parts.......................................................................... 7 - 3
2.2 Configuration of the Interconnection Wiring Diagram of Parts .......................................................... 7 - 5
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    							7 - 1 Chapter 7   Wiring Diagrams and Signal Information
Epson AcuLaser C2900NRevision B
Confidential
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 plate spring.
Represents a connection between parts by tightening of a screw.
Indicates a frame ground.
Represents a connector. The connector No. is indicated inside the box.
Represents a connection terminal with a plate spring on the printed circuit 
board. The connector (terminal) No. is indicated inside the box.
Represents a connector directly connected to the printed circuit board. The 
connector No. is indicated inside the box.
The box containing a part name represents a part.
 PL X.Y.Z indicates the item Z of the plate (PL) X.Y described in Chap-
ter 5 Parts List.
Represents a functional part within a part, and indicates the name of the 
functional part.
Represents a section in 2. Interconnection Wiring Diagram of Parts, and 
indicates its section No.
Represents a screw for fixing wiring harness and a conductive member such 
as a plate spring.
Represents a conductive member such as a plate spring.
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    							7 - 2 Chapter 7   Wiring Diagrams and Signal Information
Epson AcuLaser C2900NRevision B
Confidential
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
P/J201
ADC SENSORP/J281P/J2811
EEPROM PHD
P/J28
PWBA EEPROM
PL8.2.16P/J144 P/J422LED ASSY
ERASE
PL4.1.8
P/J141
DRUM CARTRIDGE
PL4.1.21
TRANSFER
ASSY
PL6.1.7
P/J26CLUTCH ASSY 
DRV
PL3.1.1P/J262
SSI NO PAPER
SENSOR
PL3.2.13 P/J233
CST NO PAPER
SENSOR
PL3.2.13 P/J234
SOLENOID FEED
PL3.1.11P/J23P/J231
REGI SENSOR
PL3.2.13
P/J232
CONNECTOR CRUM (K)
PL5.1.14P/J314
CONNECTOR CRUM (C)
PL5.1.14P/J313
CONNECTOR CRUM (M)
PL5.1.14P/J312
CONNECTOR CRUM (Y)
PL5.1.14P/J311
P/J31
MOTOR ASSY DISP (Y)
PL5.1.3P/J181P/J18
MOTOR ASSY DISP (M)
PL5.1.3P/J182
MOTOR ASSY DISP (C)
PL5.1.3P/J191
MOTOR ASSY DISP (K)
PL5.1.3P/J192
P/J19
PWBA FEED H
PL12.2.1
PAPER PATH
SENSOR
PL12.4.13P/J4200
MOTOR 
ASSY SUB
PL12.2.16P/J27-AP/J419P/J273
P/J421 CLUTCH ASSY DRV
PL12.2.6
P/J4201
SOLENOID FEED
MSI
PL12.2.15P/J4221
P/J420
P/J422
P/J421
CST2 NO PAPER
SENSOR
PL12.4.13P/J4212
8
4
6
5
10
11
MOG07001SA7
2 91
P/J17
P/J171
3
P/J47PWBA LVPS
PL8.2.1
P/J40
PWBA ESS
PL8.1.7CONSOLE
ASSY PANEL
PL1.1.18P/J101
P/J111
P/J29
P/J401
P/J10
P/J11
P/J202P/J5301
P/J48
FAN
PL8.1.1
HARN ASSY
INTERLOCK
PL8.2.5
SWITCH
PL5.1.9P/J503
P/J44P/J15P/J502
P/J14P/J501
P/J29P/J291
HARN ASSY
SW PWR
PL8.2.9
ROS ASSY
PL4.1.1 FUSER UNIT
PL6.1.1
P/J412P/J41P/J411P/J40
P/J504 Used in production
process only.J5041
Xerographic
250 FEEDER
DUPLEX High Voltage ROS FUSER UNIT
DC Power Supply
Controller
Feeder, SSI & RegiDeveloper
Drive
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    							7 - 3 Chapter 7   Wiring Diagrams and Signal Information
Epson AcuLaser C2900NRevision B
Confidential
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 functional parts attached with functional parts name.
Denotes the control and its outline in PWB.
Denotes a connection between parts with harnesses or wires, 
attached with signal name/contents.
Denotes the function, and logic value of the signal to operate the 
function (Low: L, High: H).
The given voltage is for signal in high status.
The arrow indicates the direction of signal.
Denotes the function, and logic value of the signal when the func-
tion operated (Low: L, High: H).
The given voltage is for signal in high status.
The arrow indicates the direction of signal.
P/JXX
YY
PWBA 
HNB DRV
Heater
Control
DEVE_A
REGI CLUTCH  
EXIT PAPER
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    							7 - 4 Chapter 7   Wiring Diagrams and Signal Information
Epson AcuLaser C2900NRevision B
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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    							7 - 5 Chapter 7   Wiring Diagrams and Signal Information
Epson AcuLaser C2900NRevision B
Confidential
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, SSI & REGI
Connections of SOLENOID FEED with PWBA MCU.
Connections of REGI SENSOR with PWBA MCU.
Connections of SSI NO PAPER SENSOR with PWBA MCU.
Connections of CST NO PAPER SENSOR with PWBA MCU.
Connections of CLUTCH ASSY DRV with PWBA MCU.
§ 3    DRIVE
Connections of DRIVE ASSY PH with PWBA MCU.
Connections of DRIVE ASSY MAIN with PWBA MCU.
Connections of DRIVE ASSY SUB with PWBA MCU.
§ 4    ROS
Connections of ROS ASSY with PWBA MCU.
§ 5    XEROGRAPHIC
Connections of PWBA EEPROM with PWBA MCU.
Connections of DRUM CARTRIDGE with PWBA MCU.
Connections of SENSOR HUM with PWBA MCU.
Connections of LED ASSY ERASE with PWBA MCU.
Connections of TRANSFER ASSY with PWBA MCU.
§ 6    HIGH VOLTAGE
Connections of PWBA HVPS with PWBA MCU.
§ 7    DEVELOPER
Connections of DISPENSE MOTOR (Y) with PWBA MCU.
Connections of DISPENSE MOTOR (M) with PWBA MCU.
Connections of DISPENSE MOTOR (C) with PWBA MCU.
Connections of DISPENSE MOTOR (K) with PWBA MCU.
Connections of CONNECTOR CRUM (Y) with PWBA MCU.
Connections of CONNECTOR CRUM (M) with PWBA MCU.
Connections of CONNECTOR CRUM (C) with PWBA MCU.
Connections of CONNECTOR CRUM (K) with PWBA MCU.
§ 8    FUSER UNIT
Connections of FUSER UNIT with PWBA MCU.
Connections of FUSER UNIT with PWBA LVPS.
Connections of PWBA MCU with PWBA LVPS.
§ 9    CONTROLLER
Connections of PWBA ESS with PWBA MCU.
Connections of CONSOLE ASSY PANEL with PWBA ESS.
Connections of PWBA LVPS with PWBA ESS.
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    							7 - 6 Chapter 7   Wiring Diagrams and Signal Information
Epson AcuLaser C2900NRevision B
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 MOTOR ASSY DUP-UP.
Connections of PWBA DUP with MOTOR ASSY DUP-DN.
Connections of PWBA DUP with CLUTCH DUP.
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    							7 - 7 Chapter 7   Wiring Diagrams and Signal Information
Epson AcuLaser C2900NRevision B
Confidential
§ 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 SLEEP
SG
24V OFF
FAN STOP
FAN LOW
FAN ALARM
I/L OPEN
SWITCH ASSY INLET MG SFP
PL8.2.9
P/J48
MOG07002KB
PWBA LVPS
PL8.2.1
HARN ASSY LVPS MAIN MG SFP
PL9.1.3HARN ASSY SIDE SW
PL5.1.27
HARN ASSY LVPS MAIN MG SFP
PL9.1.3
INTERLOCK
+24VDC
3
1
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    							7 - 8 Chapter 7   Wiring Diagrams and Signal Information
Epson AcuLaser C2900NRevision B
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 name Description
LV  T Y P E
24V ONControl signal of the LVPS
FA N  L O W
FA N  S TO P
ALARM FANDrive control signal of the SIDE FAN
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    							7 - 9 Chapter 7   Wiring Diagrams and Signal Information
Epson AcuLaser C2900NRevision B
Confidential
§ 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 (L) +3.3VDCSG
3
2
1 PULL UP +3.3VDC
REGI SENSOR
PL3.2.13 P/J232
P/J26
4
5I/L +24VDC
REGI CL ON (L) +24VDC2
11
2
P/J262
CLUTCH ASSY DRV
PL3.1.1
RIO07003KA
INTERLOCK
+24VDC
+3.3VDC
+3.3VDC
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