Gestetner A193 Service Manual page 410

DETAILED DESCRIPTIONS
2.3 JOGGER UNIT PAPER POSITIONING MECHANISM
[A]
[B]
[C]
[D]
In the staple mode, each sheet of copy paper is vertically and horizontally
aligned when it arrives in the jogger unit.
For the horizontal alignment, the jogger motor [A] will turn on to move the
front jogger fence [B] towards the stapler unit to align the copies.
For the vertical alignment, the brush roller [C] will push the trailing edge of the
paper downward against the stack stoppers [D]. The start position of the
stack stoppers depend on the paper size (LT or A4), and is changed by the
feed-out motor.
SM 12-8 (A666)