Read Sharp AR-M35 / AR-M450 (serv.man8) Service Manual online
AR-350/450 BASIC PAPER TRANSPORT PATH AND PAPER EXIT 3-17
1) A hole is punched along the trailing edge of the 1st sheet.
2) A hole is made along the trailing edge of the 2nd sheet.
<2>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
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.
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
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
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.
round trip in escape direction.
2) Holes are made along the trailing edge of the 2nd sheet.
While two hole are being made, the 3-hole puncher makes a single round
trip in escape direction (moving up the hole puncher).
c. Horizontal Registration Operation
The horizontal registration drive for the punch slide unit is provided by
the horizontal registration motor (FPSM). The home position of the
the horizontal registration motor (FPSM). The home position of the
punch slide unit is detected by the horizontal registration home position
sensor (PSHPS). The punch slide unit detects the trailing edge of sheets
using the trailing edge sensor (LED5, PT5) and the horizontal
using the trailing edge sensor (LED5, PT5) and the horizontal
registration sensors (LED1 through 4, SREG1 through 4), and causes a
move to a specific position matching the trailing edge of each sheet
(in relation to the size of the sheet).
(in relation to the size of the sheet).
The horizontal registration operation takes place as follows:
1) When the leading edge of a sheet from the host machine is detected
by the trailing edge sensor (LED5, PT5), the horizontal registration
motor (FPSM) starts to move the punch slide unit toward the front.
motor (FPSM) starts to move the punch slide unit toward the front.
(punch shaft at rest/
home position)
(punch shaft CCW rotation
by 90˚/hole made)
(punch shaft CCW rotation by 180˚/
end of punching operation)
(punch shaft at rest/
home position)
(punch shaft CCW rotation
by 90˚/hole made)
(punch shaft CCW rotation by 180˚/
end of punching operation)
(punch shaft at rest/
home position)
(punch shaft CW rotation
by 90˚/hole made)
(punch shaft CW rotation by 180˚/
end of punching operation)
Sensor flag
Punch home position
sensor (PI1P)
Punch shaft
Eccentric cam
Hole
puncher
Die
Die
Paper
Waste paper
(punch shaft at rest/
home position)
(punch shaft CW rotation by 90˚/
punch at upper limit)
(punch shaft CW rotation by 180˚/
punch back to initial position)
(punch shaft at rest/
home position)
(punch shaft CCW rotation
by 90˚/hole made)
(punch shaft CCW rotation by 180˚/
end of punching operation)
(punch shaft CCW rotation by
90˚/punch at upper limit)
(punch CCW rotation by 180˚/
punch back at initial position)
(punch shaft at rest/
home position)
Horizontal registration
motor (M2P)
motor (M2P)
(direction of
paper delivery)
Punch slide unit
Trailing edge sensor
(LED5, PT5)
Paper
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