Epson EPL-N1200, Service Manual

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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