Duplex Unit Board - Lexmark T520 Service Manual

Infoprint 1120 and 1125

Duplex Unit Board

Note: Duplex connectors J10 and J11 are interchangeable. No
problem results if the connectors are switched.
Connector
J1 Motor
J2 DC Motor
Sensor/Encoder Board
J3 Stepper Motor
J4 Fan
J5 Paper Input Sensor
J6 Rear Cover Open Switch
J7 Jam Removal Tray Open
Switch
J8 Paper Exit Sensor
5-18
Service Manual
Pin No. Signal
1 Motor -
2 Motor +
1 +5 V dc Sensor
2 Tach +
3 Ground
1 STPMOTA -
2 STPMOTA +
3 STPMOTB -
4 STPMOTB +
1 +24 V dc
2 Fan On -
1 +5 V dc Sensor
2 Input +
3 Ground
1 Top Cover Open +
2 Ground
1 Front Drawer Open +
2 Ground
1 +5 V dc Sensor
2 Exit +
3 Ground