MX-FN15, MX-FN16. Service Manual - Sharp Copying Equipment Service Manual (repair manual). Page 116

The paper output mechanism serves to keep a stack of sheets coming from the finisher in place

for the next steps (stapling, folding).

The paper inlet is equipped with the No.1 flapper and the No.2 flapper, which operate to con-

figure the paper path to suit the size of paper. The paper positioning plate is kept in wait at a
predetermined location to suit the size of paper. The paper positioning plate is driven by the Fin-
isher Saddle Positioning Motor (FSPM), and the position of the plate is identified in reference to
the number of motor pulses coming from the Finisher Saddle Paper Guide Home Position Sensor
(FSPGHS). A sheet moved by the inlet roller is handled by the feed rollers and the crescent roller
and held in a predetermined position. The feed plate serve to move sheets by coming into contact
with or moving away from sheets as needed.

The alignment plates put the stack into order each time a sheet is output. The alignment plates

are driven by the Finisher Saddle Paper Alignment Motor (FSPAM), whose position is identified in
reference to the number of motor pulses coming from the Finisher Saddle Alignment Plate Home
Position Sensor (FSAPHS).

To prevent interference between paper and the paper folding rollers when the paper is being

output, the folding rollers are designed to be covered by a guide plate. The guide plate moves down
before paper is folded so as to expose the paper folding rollers.

The inlet is equipped with the Finisher Saddle Paper JAM Detector 1, 2, 3 (FSPJD1, FSPJD2,

FSPJD3) each suited to a specific paper size, and the paper positioning plate is equipped with a
Finisher Saddle Paper Alignment Tray Paper Detector (FSATPD).