Sharp AR-FN3, Service Manual

Page: 11 / 54

A. Upper paper transport section
1) Paper transport
By rotating the main driving motor (FM), the transport rollers in the
finisher are driven.
2) Paper discharge gate 1 (1)
The paper discharge gate 1 (1) is operated by the paper discharge
gate 1 solenoid (OG1SL), to select between the routes for paper
discharge to the tray 1 (8) and transport to the tray 2 (5)/staple tray.
3) Paper discharge gate 2 (6)
The paper discharge gate 2 (6) is operated by the paper discharge
gate 2 solenoid (OG2SL) to select between the routes for paper
discharge to the tray 2 (5) and transport to the staple tray.
4) Trays 1 (8) and 2 (5) paper discharge operation
When paper is discharged to tray 1 (8) and tray 2 (5), tray 12 reduc-
tion clutch (11) is operated at the paper discharging timing to reduce
the speed of paper discharge rollers 1 and 2, improving the accuracy
of paper alignment in tray 1 (8) and tray 2 (5).
5) Trays 1 (10) and 2 (7) paper full detection
Whether the trays 1 (10) and 2 (7) are filled with paper is detected by
the tray 1 and 2 paper full sensor.
No. Signal name Name
(1) — Paper discharge gate 1
(2) PFD2 Transport sensor 2
(3) INPD Paper entry sensor
(4) PFD4 Transport sensor 4
(5) — Tray 2
(6) — Paper discharge gate 2
(7) T2PF Tray 2 paper full detecting sensor
(8) — Tray 1
(9) PFD3 Transport sensor 3
(10) T1PF Tray paper full sensor
(11) T12CL Trays 1 and 2 deceleration clutch
B. Staple tray
1) Jogger motor (JGM)
The jogger motor is driven when the paper is fed into the staple tray,
to operate the jog plates F and R so as to align the sideways edge of
the paper.
2) Paddler (11)
The paddler clutch (PDCL) is turned ON when the paper is fed into
the staple tray, to give the paddler a full turn so as to drop the paper
downward (pusher), thus achieving alignment in the vertical direction.
3) Pusher motor (PSM)
With the pusher motor rotating, the paper stored inside the staple tray
is lowered from the home position (discharge position) to the stapling
position; after stapling, the paper inside the staple tray is elevated
from the stapling position to the home position.
4) Staple unit movement motor (STUM)
The staple unit is moved to the stapling positions (front, far end, 2
centers) by the staple unit motor.
5) Staple tray paper discharge
When the paper delivery roller pressure release clutch (STORCL) is
turned ON, the paper delivery pressure release roller (4) is pres-
surized through the cam to discharge the paper from the stable tray.
6) Paper discharge gate 3 (5)
The paper discharge gate 3 (5) is operated by the paper discharge
gate 3 solenoid (OG3SL) to switch over the routes of paper inside the
staple tray between the paper discharge side and the staple side of
the off-set tray.
7) Tray 3 paper discharge motor
The tray paper discharge motor (12) is rotated to drive the paper
discharge rollers 3 and 4 to discharge paper to the tray 3.
No. Signal name Part name
(1) — Short path switching gate
(2) — Paper discharge roller 3
(3) — Pusher
(4) — Paper delivery pressure release roller
(5) — Paper discharge gate 3
(6) STPD Staple tray paper detection sensor
(7) — Staple unit
(8) T3ORSL Paper discharge roller 4
(9) T3OD Tray 3 paper discharge sensor
(10) STID Staple tray paper entry sensor
(11) — Paddler
(12) T3OH Tray 3 paper discharge motor
(11)
(10)
(1)
(2)
(3)
(9)
(8)
(6)
(5)
(4)
(7)
(To staple tray)
(11)
(10)
(9)
(8)
(6)
(5)
(4)
(7)
(1)
(2)
(12)
AR-FN3
4 – 2 8/19/1999