Ricoh B064 SERIES Service Manual page 1301

Punch Selection and Firing
[A]: Punch Drive Motor (M24)
[B]: Punch Encoder Wheel
[C]: Punch Encoder Sensor (S24)
[D]: Punch HP Sensor (S23)
The punch drive motor (M24) [A] turns
the small, notched encoder wheel [B]
through the gap in the punch encoder
sensor [C] (S24). The sensor output is
used to control the punch timing.
The timing for 2-hole punching [E] is
different from 3-hole punching [F].
When the punch unit is at the punching
position, the punch motor turns until the
encoder detects the starting position for
2-hole or 3-hole punching.
• This is the '1' position in the diagrams
(the top diagram is for 2-hole punching,
and the bottom diagram is for 3-hole
punching).
Then, the punch drive motor turns
counter-clockwise to the '2' position. This
movement punches the holes in the
paper.
Then, the punch drive motor turns
clockwise to the '1' position, to be ready
for the next sheet of paper.
SM
CÓPIA NÃO CONTROLADA
PUNCH UNIT B702 (FOR B700/B701)
67
CÓPIA NÃO CONTROLADA
[C]
[B]
1
[E]
1
[F]
[A]
[D]
2
B700D355.WMF
2
B700D356.WMF
B700/B701