Ricoh Aficio SP 100 Service Training page 27

Main Unit Drive
The main motor (1) and a gear train (2) drive the pickup roller (3),
the feed rollers (4), the drum (5, inside the AIO), the hot roller (6),
the pressure roller (7), and the exit rollers (8).
The pickup roller solenoid (9) engages and disengages the
rotation of the pickup roller during paper feed.
No additional notes
27