Read Sharp MX-FN19 / MX-FN20 Service Manual online
MX-FN19 OPERATIONAL DESCRIPTION 6 – 17
C. Shifting the stapler unit
The stapler unit is moved by the stapler shift motor (FSM). Its home
position is detected by the stapler shift home position sensor
(FSTHPD). When the staple signal arrives from the host machine,
the stapler moves to the staple wait position appropriate for staple
position and the paper size. See the figures shown below for an
idea of the wait position according to the stapling mode.
Front 1-Point Stapling
The wait position is the same as the stapling position.
position is detected by the stapler shift home position sensor
(FSTHPD). When the staple signal arrives from the host machine,
the stapler moves to the staple wait position appropriate for staple
position and the paper size. See the figures shown below for an
idea of the wait position according to the stapling mode.
Front 1-Point Stapling
The wait position is the same as the stapling position.
Rear 1-Point Stapling
The wait position is the same as the stapling position.
The wait position is the same as the stapling position.
2-Point Stapling
The stapler is kept in wait in the front of the paper. Stapling occurs
at two points, first in the front, and then at the back.
The stapler is kept in wait in the front of the paper. Stapling occurs
at two points, first in the front, and then at the back.
Staple
home
position
detection
signal
Staple
detection
signal
Staple
edge
position
detection
signal
Staple
drive
signal
Finisher controller PCB
FFSM
Back alignment
plate
Stopper
Staple position/
wait position
Feeding direction
Front alignment
plate
Back alignment plate
Staple position/
wait position
Stopper
Feeding direction
Front alignment plate
Back alignment plate
Staple position
Stopper
Staple position/
wait position
Stopper
Stopper
Front alignment
plate
Feeding direction
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