Lexmark M52 Series Service Manual page 924

Clamp drive
For each sheet that is ejected to the bin, the bin clamps lower and hold the paper stack. If the level of the paper
stack on the bin reaches the sensors (bin full), then the elevator bin lowers to accommodate more sheets.
If the level of the paper stack exceeds the sensors (bin full), then the bin reaches full capacity.
The motor (bin clamp) controls the movement of the bin clamp. The sensor (bin clamp) detects the clamps at
their home position.
1 Bin clamps
2 Sensor (bin clamp)
3 Motor (bin clamp)
4 Sensors (bin full)
Theory of operation
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