Xerox Phaser 6115MFP Service Manual page 100

Theory of Operation
Tray 1 No Paper Sensor
2-56
The Tray 1 No Paper Sensor located on the Feeder Control Board detects
when the tray is empty. When media is present in the tray, the actuator is
raised unblocking the sensor. When the tray is empty, the actuator drops into
the slit in the Lift Plate blocking the sensor
At Paper Empty Condition Under Normal Conditions
Phaser 6115MFP Multifunction Product Service Manual
PF Drive Board
Paper Empty Sensor
s6115-036