# Part
1 Sensor (staple finisher elevator home)
2 Elevator bracket
3 Motor (staple finisher elevator)
Horizontal paper transport (HPT) operation
The HPT is installed on the printer standard bin and feeds the paper from the printer exit roller to the SHPF entrance
roller. The motor (HPT transport) drives the three transport rollers, and the sensor (HPT feed) detects the paper as it
passes through the rollers.
4021, 7421
Appendix C: Theory of operation
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