Sharp SF-S55N Service Manual page 92

2) Operation
a. Outline
The push bar is driven by the push bar motor (M7). It
moves in the bin unit in parallel with the paper
unloading direction.
The push bar has two stop potions for copying
operation and 4 stop positions for front access
operation. Each stop position is controlled by pulse
control of push bar motor (M7) from the home
position.
Stop position (for reference)
Stop position Distance from home position
Home position 0mm
Push-up position 26.4mm
Push-out position 36.4mm
Escape position 148.9mm
Paper
Push bar
9−22
SF-S55N
(Home position)
Top view
Escape position
Push-up position
Push-out position