MX-FN27. Service Manual for N Version - Sharp Copying Equipment Service Manual (repair manual). Page 27

MX-FN27 N, MX-PN14  OPERATIONAL DESCRIPTION  6 – 1

MX-FN27 N, MX-PN14

Service Manual

 

The components of this finisher are organized into 3 major blocks; feed unit, processing tray unit and stack tray unit.

Overview of Electrical Circuitry

This machine's sequence of the operation is controlled by the finisher controller PCB.

The finisher controller PCB has the 32-bit CPU(IC1), and the controller also controls the communication with the host machine in addition to control-
ling this machine's operation sequence.

The CPU(IC1) on the finisher controller PCB contains a flash ROM used to store the operating sequence program.

The finisher controller PCB uses the serial communication line to receive various commands from its host to drive the motors. It also uses serial com-
munications to send information on the sensors and switches to its host.

The setting value of the service mode in the finisher is memorized in CPU(IC1).

Stack Tray Unit

Processing Tray Unit

Feed Unit

Motor

Sensor

Switch

Motor Driver

Finisher Controller

PCB

CPU (IC1)

Host machine

(DC Controller PCB)

Serial

communication