AR-FN2 (serv.man10). ARFN2 Service Manual-Circuit Descriptions - Sharp Copying Equipment Service Manual (repair manual). Page 3

This circuit controls document transport, reverse, alignment, stapling and discharge.
It is composed of a circuit which controls sensors, switches,and copier signals input, and a circuit which drives the motors and the solenoids, and
CPU, G/C and it peripheral circuits 

Communication

circuit

Paper reverse
sensor input 
circuit

Transport path
entry sensor input
circuit

Process tray paper
exit sensor input
circuit

Bundle exit sensor
inpout circuit

Accumulation tray
sensor input
circuit

Boomerang
rotation sensor
input circuit

Unit lock sensor 1
input circuit

Unit lock sensor 2
input circuit

Upper cover

sensor input

circuit

Paper alignment
home position
sensor input circuit

Paper level
sensor input
circuit

Tray rotation
sensor input 
ircuit

Tray limit sensor
input circuit

Full stack sensor
input circuit

Address bus

Data bus

DIP switch push
switch

Power ON
reset circuit

Open/close
switch input
circuit

Paper transport

motor drive

circuit

Paper alignment

motor drive

circuit

Paper reverse

motor drive

circuit

Bin shift motor
drive circuit

Boomerang solenoid
drive circuit

Reverse solenoid
drive circuit

Paddle solenoid
drive circuit

Staple motor
drive circuit

Current limit
circuit

Stapler home
position sensor
input circuit

Staple near end
sensor input circuit

Staple presence
sensor input circuit

Oscillation
circuit
11MHz

rush current
limit circuit
+24V

Power circuit 

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