Ricoh FT8880 Service Manual page 130

5 June 1992 SECTIONAL DESCRIPTION
2.4 STAPLE UNIT PAPER POSITIONING
[C]
[B]
[F]
[E]
[A]
[H]
[G]
[D]
[F]
[C]
In the staple mode, copies are vertically and horizontally aligned in the jogger
unit before being stapled.
For horizontal paper alignment, the jogger motor [A] moves both the front and
the rear jogger fences [B] to align the copies.
For vertical paper alignment, the positioning roller [C] and the alignment
brush roller [D] push the copy against the stack stopper [E].
After the trailing edge of the copy passes the jogger unit entrance sensor [F],
the positioning roller solenoid [G] is energized for 280 ms pushing the
positioning roller into contact with the paper. The positioning roller rotates to
push the paper back and align the trailing edge of the paper against the stack
stopper. Both the positioning roller and the alignment brush roller are driven
by the transport drive motor through the timing belt [H].
11