Paper Handling
D350 28 SM
The tray has four paper height sensors. The amount of paper remaining in the tray is
detected by the three paper height photo-interrupter sensors on the left rail as the bottom
plate rises. Five states, determined by the position of the actuator [A] are possible.
1. With the actuator [A] below paper height sensor {, no sensor is actuated and the
display indicates 100%.
2. When the actuator passes paper height sensor { , the display indicates 75% of the
paper supply remaining.
3. When the actuator passes paper height sensor , the display indicates 50% of the
paper supply remaining.
4. When the actuator passes paper height sensor }, the display indicates 25% of the
paper supply remaining.
5. When the actuator enters the gap of the near end sensor ~, and then passes paper
height sensor }, the machine signals near end.
6. Finally, when the last sheet feeds, the paper end sensor (a photosensor) signals that
the tray is empty.
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