MX-PNX6. Service Manual Revised May 2014. - Sharp Copying Equipment Service Manual (repair manual). Page 13

MX-FN11  OPERATIONAL DESCRIPTION  4 – 1

MX-FN11

Service Manual

 

The finisher is designed to deliver copies arriving from its host
machine, and its modes of delivery include simple stacking, job off-
set, and staple.
All operations involved in these modes are controlled by the fin-
isher controller PCB, according to the appropriate commands from
the host machine.

NOTE: The term job offset refers to shifting each sorting job, sepa-

rating a single stack into several stacks.

The finisher's sequence of operation is controlled by the finisher
controller PCB. The finisher controller PCB is a 16-bit microproces-
sor (CPU), and is used for communication with the host machine
(serial) in addition to controlling the finisher's sequence of opera-
tions.
The finisher controller PCB responds to the various commands
coming from the host machine through a serial communications
line to drive solenoids, motors, and other loads. In addition, it com-
municates the finisher's various states (information on sensors and
switches) to the host machine through a serial communications cir-
cuit.
The ICs used on the finisher controller PCB are designed for the
following:
• IC2  (CPU)

Controls sequence of operations/sequence program built-in.

• IC3 (EEP-ROM)

For backup of adjustment values/backup of default data.

• IC28 (Regulator IC)

Generates 5V.

• IC7 (Regulator IC)

Generates 3.3V.

The figure below shows the flow of signals between the finisher and
the optional controller.

Inputs to and outputs from the punch control PCB

Outputs from the punch control PCB

Tray drive system

Tray drive system

Control

system

Swing guide drive system

Alignment drive system

Stapler drive system

Delivery drive system

Feed drive system
Shutter drive system

Punch controller

PCB

(Punch module(option))

Host machine

(DC controller PCB CPU)

Finisher controller

PCB

IC2

CPU

IC3

EEP-ROM

IC28

Regulator IC

IC7

Regulator IC

Motor

Solenoid

Switch
Sensor

Punch motor

lock sensor

When the punch slide

unit is at home position,

'1'.

While the punch motor

is rotating,alternates

between '0' and '1'.

Waste full PCB(FPDD)

When the light is

blocked,'0'.

When paper is

detected,'0'.

FPFDD

FPUDSW

Punch

front door

Punch

upper cover

J602-1

-3

J622-1

-2

J621-1

-2

-4

-6

FRONT COVER

+24V

UP COVER

+24V

FPHPD

FPSHPD

FPE

J613-1

-2

-3

J611-1

-2

-3

J612-1

-2

-3

J605-A3

-A2

-A1

J605-A7

-A9

-A8

J605-A6

-A5

-A4

J606-1

-2

-3

-4

J618-4

-3

-2

-1

J605-B6

-B5

-B4

-B3

-B2

-B1

-B7

J615-2

-3

-4

-5

-6

-7

-1

+5V

PUNCH

+5V

SLIDE

+5V

CLOCK

SREG1*

SREG2*

SREG3*

SREG4*

PAEND*

DUSTLED

DUSTPTR

+5V

+5V

+5V

PT1

PT131

LED121

PT2

PT3

PT4

PT5

Punch home

position sensor

Horizontal

registration

home position

sensor

Punch control PCB

When the hole puncher is

at home position,'0'.

Horizontal registration photosensor PCB (FPTD)

J604-1

-2

-3

-4

J619-6

-4

-3

-1

A*

A

B

B*

FPNM

FPSM

FSIFM

J605-B13

-B8

-B9

-B10

-B11

-B12

J614-1

-6

-5

-4

-3

-2

J603-1

-2

J620-1

-2

J605-A10

-A11

-A12

-A13

J610-1

-2

-3

-4

J610-4

-3

-2

-1

A

B

A*

B*

LEDON5

LEDON4

LEDON3

LEDON2

LEDON1

+5V

LED5

LED4

LED3

LED2

LED1

Horizontal registration LED PCB (FPSD)

Punch control PCB

When '1',LED goes ON.

Punch motor

Punch horizontal registration motor

Punch transport motor

Switches between '+' and '-'

according to the direction of

motor rotation.

Switches the pulse

signals according to

the rotation of the motor.

Switches the pulse

signals according to

the rotation of the motor.