# Part
1 Sensor (SHPF booklet gate)
2 SHPF booklet maker pre‑feed roller
3 SHPF compiler feed roller
At the booklet maker, the motor (booklet maker transport) drives the transport roller to feed the paper to the decurl
guide. The motor (booklet maker decurl) controls the decurl guide. The guide moves back and forth to straighten the
paper and prevent jams.
# Part
1 Booklet maker transport roller
2 Booklet maker decurl guide
4021, 7421
Appendix C: Theory of operation
670