Lexmark MX910de Service Manual page 749

Paper lift
During feed, the lift plate raises the paper until the paper comes into contact with the pick roller. The sensor (lift plate
level) detects if the pick roller is sufficiently engaged with the paper. The motor (lift) controls the movement of the lift
plate. As the amount of paper lessens, the lift plate also continues to move up. When the tray is almost empty, the
actuator triggers the sensor (near empty).
# Part
1 Sensor (tray paper width)
2 Sensor (tray paper length)
3 Tray insert paper width guides
4 Sensor (tray empty)
5 Tray insert paper length guide
Appendix C: Theory of operation
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