Epson C 2900 Manual

7 - 10 Chapter 7   Wiring Diagrams and Signal Information
Epson AcuLaser C2900NRevision B
Confidential Signal line name Description
CST FEED CL ON (L)
 +24VDCON/OFF signal of the SOLENOID FEED
REGI SENSED (L)
 +3.3VDCPaper detect signal of the Regi part by the Sensor Photo (REGI SENSOR)
PAPER EMPTY SENSED
 (H) +3.3VDCPaper detect signal of the SSI by the Sensor Photo
 (SSI NO PAPER SENSOR)
PAPER EMPTY SENSED
 (L) +3.3VDCPaper detect signal of the Paper Cassette by the Sensor Photo
 (CST NO PAPER SENSOR)...

7 - 11 Chapter 7   Wiring Diagrams and Signal Information
Epson AcuLaser C2900NRevision B
Confidential
§ 3 DRIVE
SG
PWBA MCU
PL8.2.13DRIVE ASSY PH
PL7.1.4
DRIVE ASSY MAIN
PL7.1.2
DRIVE ASSY SUB
PL7.1.1
1
2
4
5
6 3
8
9 7
P/J22 P/J24P/J221
9
8
7
6
5
4
3
2
1
I/L +24VDC
SG
I/L +24VDC
SG
SUB MOTO ON
SUB MOT ALARM
SUB MOT CLK
SUB MOT LOW
M
SG
1
2
4
5
6 3
8
9 7P/J21P/J211
9
8
7
6
5
4
3
2
1
I/L +24VDC
SG
I/L +24VDC
SG
MAIN MOT ON
MAIN MOT ALARM
MAIN MOT CLK
MAIN MOT LOW
M
MOG07004KB INTERLOCK
+24VDC
INTERLOCK...

7 - 12 Chapter 7   Wiring Diagrams and Signal Information
Epson AcuLaser C2900NRevision B
Confidential Signal line name Description
K MODE SOL ON (L) +24VDC ON/OFF signal of the COLOR MODE SWITCHING SOLENOID 
K MODE SENSED (L)
 +3.3VDCColor mode detect signal of the DRIVE ASSY PH by the Sensor 
Photo (COLOR MODE SWITCHING SENSOR)
MAIN MOT ON
MAIN MOT ALARM
MAIN MOT CLK
MAIN MOT LOWDrive control signal of the DRIVE ASSY MAIN
SUB MOT ON
SUB MOT ALARM
SUB MOT CLK
SUB MOT LOWDrive control signal of the DRIVE...

7 - 13 Chapter 7   Wiring Diagrams and Signal Information
Epson AcuLaser C2900NRevision B
Confidential
§ 4 ROS
PWBA MCU
PL8.2.13
P/J40 P/J411
1
2
3
4
5
6
SG
I/L +24VDC
ROS MOT CLK
SOS
7
8
9
10
11
12
LD ERR
PCONT
SG
V REF K
V REF C
V REF M
V REF Y ROS MOT ON HARN ASSY ROS RE
PL4.1.22
LOCK
ROS MOT ON
SG
+24VDC
+5VDC
SOS
SG CLK
ROS ASSY
PL4.1.1
SCANNER 
MOT
PWBA SOS
MOG07006KA
13
14
ENB
15
15
14
13
12
111
2
3
4
5
10
9
8
7
6
51
2
35
4
3
2
1
3
2
1
4
3
2
1
SG
+3.3V LD
INTERLOCK
+24VDC
P/J41 P/J412
1
2
3
4
5
6...

7 - 14 Chapter 7   Wiring Diagrams and Signal Information
Epson AcuLaser C2900NRevision B
Confidential Signal line name Description
ROS MOT ON
ROS MOT CLKDrive control signal of the ROS MOTOR
SOS Reference signal for scan start of LASER
V REF K
V REF C
V REF M
V REF YEmission control signal of the laser diode
LD ERR Error signal of the laser diode
PCONT Power control signal of the laser diode
DATA K
DATA C
DATA M
DATA YVideo signal of the laser diode 

7 - 15 Chapter 7   Wiring Diagrams and Signal Information
Epson AcuLaser C2900NRevision B
Confidential
§ 5 XEROGRAPHIC
PWBA MCU
PL8.2.13
P/J42
5
6
7
8
9
10
HARN ASSY PHD XPRO
PL9.1.11
HARN ASSY HUM
PL9.1.6DRUM CARTRIDGE
PL4.1.21
P/J422
6
5
4
3
2
1 +3.3VLD
DATA
CLOCK
+3.3VDCSG +3.3VDCCLOCKDATA
SG
+3.3VLD
1
2
3
4
EEPROM PHD P/J144
4
3
2
1
SG
+5VDC HUM SNS TEMP SNS
P/J20
1
2
3
4P/J201
4
3
2
1
PWBA EEPROM
PL8.2.16
SENSOR HUM
PL8.2.7
HARN ASSY LVPS MAIN MG SFP
PL9.1.3
ERASE Y/M/C ON (L) +3.3VDC
ERASE K ON (L)...

7 - 16 Chapter 7   Wiring Diagrams and Signal Information
Epson AcuLaser C2900NRevision B
Confidential Signal line name Description
CLOCK
DATAControl signal of the PWBA EEPROM
CLOCK
DATAControl signal of the EEPROM PHD
TEMP SNSTemperature data in the printer by the SENSOR HUM
 (Analog value)
HUM SNSHumidity data in the printer by the SENSOR HUM
 (Analog value)
ERASE K ON (L) +3.3VDC
ERASE Y/M/C ON (L) +3.3VDCON/OFF signal of the LED ASSY ERASE
ADC SENSORToner patch density data measured by the ADC...

7 - 17 Chapter 7   Wiring Diagrams and Signal Information
Epson AcuLaser C2900NRevision B
Confidential
§ 6 HIGH VOLTAGE
PWBA MCU
PL8.2.13
DRUM CARTRIDGE
PL4.1.21
P/J16
1
2
3
4
5
6
7
8
PWBA HVPS
PL4.1.19
HARN ASSY  HVPS
PL9.1.5
P/J161CF
DB-K
TR-K
TR-C
TR-M
TR-Y
BCR
BTR
BTR : Bias Transfer Roll
BCR : Bias Charge RollDeveloperDB-C
DB-M
DB-Y 10
9
8
7
6
5
4
3
TR MON
NC
HV DO
HV LD
HV CLK
+3.0V REF
SG
9
10
2
1
MAIN CLK
SG
I/L +24V
MOG07008KA
K
C
M
Y
+3.0V REF 

7 - 18 Chapter 7   Wiring Diagrams and Signal Information
Epson AcuLaser C2900NRevision B
Confidential Signal line name Description
TR MON
HV DO
HV LD
HV CLK
MAIN CLKControl signal of the HVPS 

7 - 19 Chapter 7   Wiring Diagrams and Signal Information
Epson AcuLaser C2900NRevision B
Confidential
§ 7 DEVELOPER
PWBA MCU
PL8.2.13
1
3
4
5 2P/J18
P181
5
4
3
2
1J181
1
2
3
4
5
DISPENSE MOTOR (Y)
PL5.1.3Y DISPENSE MOT A
Y DISPENSE MOT B
I/L +24VDC
Y DISPENSE MOT XA
Y DISPENSE MOT XB
M DISPENSE MOT A
M DISPENSE MOT B
I/L +24VDC
M DISPENSE MOT XA
M DISPENSE MOT XB
C DISPENSE MOT A
C DISPENSE MOT B
I/L +24VDC
C DISPENSE MOT XA
C DISPENSE MOT XB
K DISPENSE MOT A
K DISPENSE MOT B
I/L +24VDC
K DISPENSE MOT...