# Part
1 Elevator bin stack height sensor actuator
2 Sensor (SHPF elevator bin stack height)
3 Elevator bin
Elevator bin stack height finger
When stapled sheets are fed to the bin, the height of the edge of the stack can be higher than the height detected by
the paper detection levers. If the stack blocks the light between the sensors (SHPF elevator bin stack height), then the
bin lowers.
As the bin continues to move down due to the paper stack, the bin triggers the sensor (SHPF elevator bin full), and then
the bin stops moving.
# Part
1 Elevator bin stack height fingers
2 Sensor (SHPF elevator bin stack height, transmit)
3 Sensor (SHPF elevator bin stack height, receive)
4 Elevator bin
If the elevator bin is moving up, and the paper stack touches the tamper plates, then the sensor (SHPF elevator bin
stack limit) is triggered. This action causes the elevator bin to stop moving up.
Note: If the width of the paper stack is less than the distance between the tamper plates, then the stack triggers the
sensor (SHPF elevator bin stack limit). This action also causes the bin to stop moving up.
4021, 7421
Appendix C: Theory of operation
665
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