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(2)Punching Operation
The hole puncher is driven by the punch motor (FPNM). The home
position for the hole puncher is detected by the punch home position
sensor (PHPS).
The punch unit comes in four types, selected to suit the country of
installation: 2-hole (Puncher Unit-J1), 2- and 3-hole (Puncher Unit-K1),
or two types of 4-hole (Puncher Unit-G1, Puncher Unit-H1).
The 2-hole and 4-hole types punch a hole when the punch shaft is
rotated 180× from the home position, causing the punch to make a single
round trip. The 2-/3-hole type punches a hole, but the circumference of
the punch shaft is divided into two (half for 2-hole and the other half for
3-hole).
a.2-Hole, 4-Hole Type
The home position is identified when the punch home position is ON.
The punching operation for the first sheet ends when the punch shaft has
rotated 180× and the punch home position sensor goes ON; the
punching operation for the second sheet ends when the punch shaft has
rotated 180× in reverse and the punch home position sensor goes ON.
The punching operation takes place as follows when making a hole in
two sheets of paper.
1) A hole is punched along the trailing edge of the 1st sheet.
(punch shaft at rest/
(punch shaft CCW rotation
home position)
by 90˚/hole made)
Fig.F02-602-02
2) A hole is made along the trailing edge of the 2nd sheet.
(punch shaft at rest/
(punch shaft CCW rotation
home position)
by 90˚/hole made)
Fig.F02-602-03
b.2- /3-Hole Type
The home position is identified when the punch home position sensor is
ON. To make two holes, the punching operation for the first sheet ends
when the punch shaft rotates 180° (half circumference) and the punch
home position sensor goes ON. At this time, the 3-hole puncher makes a
single round trip in escape direction (moving up the hole puncher) on a
half circumference of the punch shaft.
The punching operation for the second sheet ends when the Punch shaft
has rotated 180° counterclockwise and the punch home position sensor
goes ON (half circumference). At this time, the 3-hole puncher makes a
single round trip in escape direction (moving up the hole puncher) on the
other half circumference of the punch shaft.
The punching operation takes place as follows when making two holes in
two sheets of paper:
1) A hole is made along the trailing edge of the 1st sheet.
While two holes are being made, the 3-hole puncher makes a single
round trip in escape direction.
2) Holes are made along the trailing edge of the 2nd sheet.
(punch shaft CCW rotation by 180˚/
end of punching operation)
While two hole are being made, the 3-hole puncher makes a single round
(punch shaft CCW rotation by 180˚/
trip in escape direction (moving up the hole puncher).
end of punching operation)
AR-FN7/PN1 OPERATIONAL DESCRIPTION 4-15
Sensor flag
Punch home position
sensor (PI1P)
Punch shaft
Eccentric cam
Hole
puncher
Die
Paper
Die
(punch shaft at rest/
(punch shaft CW rotation
home position)
Fig.F02-602-04
(punch shaft at rest/
(punch shaft CW rotation by 90˚/
home position)
punch at upper limit)
Fig.F02-602-05
(punch shaft at rest/
(punch shaft CCW rotation
home position)
by 90˚/hole made)
Fig.F02-602-06
(punch shaft at rest/
(punch shaft CCW rotation by
home position)
90˚/punch at upper limit)
Fig.F02-602-07
Waste paper
(punch shaft CW rotation by 180˚/
by 90˚/hole made)
end of punching operation)
(punch shaft CW rotation by 180˚/
punch back to initial position)
(punch shaft CCW rotation by 180˚/
end of punching operation)
(punch CCW rotation by 180˚/
punch back at initial position)
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