Two Or Three Holes - Gestetner B147 Service Manual

Two or Three Holes

There are five punches. When the finisher punches holes, the punch drives all
punches at the same time. But three of them do not reach the paper (when the
finisher is punching two holes), or two of them do not reach the paper (when the
finisher is punching three holes).
Phase 1
1)
[A]
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Working punches operate as
follows:
1) The punch is in the home
position. The punch home
position sensor [A] is on. When
the first sheet of paper is set, the
punch cam starts a forward turn.
2) When the punch cam has made a
180-degree turn, a hole is
punched.
3) When the punch cam has made a
180-degree turn, the punch
comes back to the home position.
Note that the punch cam [B] is not
in the previous position.
SM
2) 3)
Working
69
PUNCH UNIT (OPTIONAL)
1) 2)
[B]
Standby
Standby punches operate as
follows:
1) When the first sheet of paper is
set, the punch cam starts a
forward turn.
2) When the punch cam has made a
90-degree turn, the punch is away
from the paper.
3) When the punch cam has made a
180-degree turn, the punch is
back to the home position.
3)
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