Epson EPL-N1200 Service Manual - Page 144

Table A-11. CN7 Pin Assignments

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EPL-N1200 Service Manual A.1.2. Engine Controller Board (PWB-A Board) Table A-8. CN4 Pin Assignments Appendix A Pin No. Signal Name I/O Description 1 GND1 - Ground 2 TONER LED O LED power 3 TONER LEVEL I Toner empty signal 4 +5V - +5 VDC Table A-9. CN5 Pin Assignments Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 Signal Name I/O Description M2:CLK M2:LOCK M2:ON GND2 24 VDC 5 VDC LDATA GND1 LDVR1 LDVR2 LDLVL SSCAN GND1 O M2 drive clock I M2 lock signal O M2 drive - Ground - +24 VDC - +5 VDC O Laser data - Ground O Laser power adjust 1 O Laser power adjust 2 I Laser power signal I Horizontal synchronous signal - Ground Table A-10. CN6 Pin Assignments Pin No. 1 2 3 4 5 6 7 8 Signal Name I/O Description ANODE GND1 PS3 +24V PICK-UP1 ANODE GND1 P.EMP1 - +5 VDC - Ground I Paper exit signal - +24 VDC - Paper take-up solenoid trigger I +5 VDC - Ground O Paper empty sensor signal Table A-11. CN7 Pin Assignments Pin No. Signal Name I/O Description 1 GND1 2 PS1 3 ANODE 4 +24V 5 GND2 6 HV-CT.R 7 HV-T 8 HV-B.VR - Ground I Paper take-up signal - +5 VDC - +24 VDC - Ground O Drum charge on O Image transfer on O Developing bias control Rev. A A-13

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A.1.2. Engine Controller Board
(PWB-A Board)
Table A-8. CN4 Pin Assignments
Pin No.
Signal Name
I/O
Description
1
GND1
—
Ground
2
TONER LED
O
LED power
3
TONER
LEVEL
I
Toner empty signal
4
+5V
—
+5 VDC
Table A-9. CN5 Pin Assignments
Pin No.
Signal Name
I/O
Description
1
M2:CLK
O
M2 drive clock
2
M2:LOCK
I
M2 lock signal
3
M2:ON
O
M2 drive
4
GND2
—
Ground
5
24 VDC
—
+24 VDC
6
5 VDC
—
+5 VDC
7
LDATA
O
Laser data
8
GND1
—
Ground
9
LDVR1
O
Laser power adjust 1
10
LDVR2
O
Laser power adjust 2
11
LDLVL
I
Laser power signal
12
SSCAN
I
Horizontal synchronous signal
13
GND1
—
Ground
Table A-10. CN6 Pin Assignments
Pin No.
Signal Name
I/O
Description
1
ANODE
—
+5 VDC
2
GND1
—
Ground
3
PS3
I
Paper exit signal
4
+24V
—
+24 VDC
5
PICK-UP1
—
Paper take-up solenoid trigger
6
ANODE
I
+5 VDC
7
GND1
—
Ground
8
P.EMP1
O
Paper empty sensor signal
Table A-11. CN7 Pin Assignments
Pin No.
Signal Name
I/O
Description
1
GND1
—
Ground
2
PS1
I
Paper take-up signal
3
ANODE
—
+5 VDC
4
+24V
—
+24 VDC
5
GND2
—
Ground
6
HV-CT.R
O
Drum charge on
7
HV-T
O
Image transfer on
8
HV-B.VR
O
Developing bias control
EPL-N1200 Service Manual
Appendix A
Rev. A
A-13