Lexmark T520 Service Manual page 226

Infoprint 1120 and 1125
Connector
J6 Output Level Sensor
J8 Printhead HYSNC
J10 Cartridge/Sensor/Input
Sensor/HVPS
Pin No. Signal
1 HOPFULL*
2 Ground
3 Opt2
4 Ground
1 +5 V dc
2 HsyncID
3 Hsyncin
4 Ground
1 AT Servo (HVPS)
2 Servo OutT (HVPS)
3 TXENABLE (HVPS)
4 Transfer (HVPS)
5 +24 V dc (HVPS)
6 Charge (HVPS)
7 Ground (HVPS)
8 Developer (HVPS)
9 Ground (In Sens)
10 In Sns* (In Sens)
11 +5 V dc (C-Sens)
12 CTSENSE* (C-Sens)
13 Ground (C-Sens)
Connector Locations
5-5