Sharp AR-FN7 Service Manual page 18

d.Saddle Delivery
The machine deposits a stack of sheets on the processing tray, staples it
(middle 2-point), and then moves it to the saddle unit. The saddle unit
folds the stack in two, and delivers it to the bind tray.
Fig.F02-201-05
B.Feed/Delivery
(1)Outline
The machine forwards the sheets coming from its host machine to the
delivery tray, processing tray, or saddle unit according to the type of
delivery used. The sheets forwarded to the processing tray or the saddle
unit are offset, stapled, or folded.
F02-202-01 shows the motors that are associated with moving and
aligning sheets. These motors are controlled (rotated clockwise or
counterclockwise) by the microprocessor (CPU) on the finisher controller
PCB.
The paper path is equipped with the sensors shown in T02-202-02 used
to monitor the arrival or passage of sheets.
If a sheet fails to arrive at or move past a specific sensor within a specific
period of time, the finisher controller will assume a jam, and stops the
ongoing operation and, at the same time, communicates the presence of
a jam to the host machine.
Notation
FFM
FPM
FAM
FFJM
FRJM
FFSM
AR-FN7/PN1 OPERATIONAL DESCRIPTION 4-5
Name Description
Feed motor Stepping motor
Paddle motor Stepping motor
Delivery motor Stepping motor
Alignment plate Stepping motor
motor (front)
Alignment plate Stepping motor
motor (rear)
Staple/fold motor Brush DC motor CN6
Table.T02-202-01
Finisher controller PCB (1/2)
FFJM
FRJM FPM
FAM
FSM
FLM
Finisher controller PCB (2/2)
Fig.F02-202-01
Connector on finisher
controller PCB
CN10
CN10
CN13
CN3
CN3
FFM
FFC
PI14
FFSM