AR-F13 (serv.man2). AR-F13 Service Manual - Sharp Copying Equipment Service Manual (repair manual). Page 14

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AR-F13 OPERATIONAL DESCRIPTION 4-1
[4] OPERATIONAL DESCRIPTION
1. Basic Operations
A. Specifications
The finisher serves to deliver sheets coming from its host machine. The
mode of delivery may be non-sort stack, job offset*, or staple delivery.
The saddle unit built into the finisher is used to fold a stack of sheets
coming from the finisher unit in half for delivery.
All these operations are controlled by various commands sent by the
host machine in addition to the commands from the finisher controller
PCB.
The puncher unit (option) is designed for installation to the pickup
assembly of the finisher, and is used to punch holes in sheets coming
from the host machine.
The above operations are controlled with various commands from the
finisher controller PCB as well as the commands from the punch
controller PCB.
NOTE:The position of delivery is shifted to the front/rear for each stack to
assist sorting.
B. Outline of the Electrical Circuitry
The sequence of finisher operations is controlled by the finisher
controller PCB. The finisher controller PCB is a 16-bit microprocessor
(CPU), and is also used for combination with the host machine (serial).
The finisher controller PCB drive motors and other loads in response to
the various commands from the host machine. It also communicates
such data as on the states of various sensors and switches to the host
machine by way of the serial communication line.
The ICs mounted to the finisher controller PCB have the following
functions:
•IC13 (CPU)
Controls sequence of operations.
•IC12 (EEP-ROM)
Backs up adjustment settings.
•IC6 (EP-ROM)
Stores sequence programs.
•IC11 (communication IC)
Communicates with the host machine.
•IC1 (regulator IC)
Generates 5 V.
F02-102-01 shows the flow of signals between finisher and options
controller:
Puncher unit drive 
system (puncher unit; 
option)
Alignment drive system
Stapler drive system
Delivery drive system
Feed drive system
Tray drive system
Saddle unit 
drive system
Control system
Host machine DC
controller PCB
CPU
Punch controller 
PCB
Finisher 
controller 
PCB
IC13
CPU
IC12
EEP-ROM
IC11
Communica-
tion IC
IC6
EP-ROM
IC1
Regulator IC
Motor
Clutch
Switch
Sensor
Motor
Sensor
Finisher unit
Puncher unit (option)
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