DOWNLOAD Sharp AR-M351N / AR-M451N (serv.man4) Service Manual ↓ Size: 17.31 MB | Pages: 127 in PDF or view online for FREE

AR-M351N/M451N  EXTERNAL VIEWS AND INTERNAL STRUCTURES  5 - 7

No.

Name

Function/Operation

1

SPF control PWB

SPF control

2

Original size detection PWB (Light emitting side)

Original size detection when using the table glass

3

CCD PWB (in lens unit) (The lens unit cannot be disassembled.)

Image scan (Table glass/SPF surface)

4

SPF original width detection volume PWB

SPF original width detection

5

MFP operation PWB

Panel operation control

6

Scanner control PWB

Scanner unit control

7

LVDS PWB

LCD signal relay

8

Original size sensor (Light receiving side)

Original size detection when using the table glass

9

CIS unit (in CIS unit) (The CIS unit cannot be disassembled.)

Image scan (SPF back surface)

10

CIS interface PWB (in CIS unit) (The CIS unit cannot be disassembled.)

CIS signal AD conversion process

11

Scanner interface PWB

Scanner unit and connection of scanner control PWB

12

CIS control PWB

CIS unit control and image process

13

CL inverter PWB

Inverter for copy lamp

No.

Name

Function/Operation

1

PRT controller

Image process, image data communication control

2

PCU PWB

Overall control of the machine and options

3

Power supply unit

DC power supply

4

LD PWB (Inside LSU)

Laser ON control (Inside LSU: LSU cannot be disassembled.)

5

Mother PWB

Signal interface between PCU and the controller

6

Reactor PWB (200V only) / Filter PWB (Taiwan only)

Noise filter

7

BD PWB

Laser control (Inside LSU: LSU cannot be disassembled.)

8

High voltage resistor PWB

High voltage load adjustment

9

Cassette detection PWB

Paper cassette control

10

Drawer PWB

Fan control

11

High voltage PWB

High voltage power supply

12

Fuse PWB

Protection of the machine when an abnormal power is supplied.

13

Relay PWB

HDD back up

AR-M351N/M451N  EXTERNAL VIEWS AND INTERNAL STRUCTURES  5 - 8

No.

Name

Function/Operation

1

SPFM

SPF motor

Original transport in SPF scan

2

SRRC

SPF original resist clutch

SPF original scan timing adjustment

3

SPFC

SPF original feed clutch

SPF original feed roller drive

4

SDSS

SPF original stopper solenoid

SPF original stopper gate drive

5

MIRM

Mirror motor

Mirror base copy lamp base drive

6

SPFS

SPF original feed solenoid

SPF original feed unit drive

7

STMPS

Stamp solenoid

Finish stamp drive (Option AR-SU1 required)

Code

Function/Operation

Type

1

DM

Drum motor

Brushless motor

2

MM

Main motor

Brushless motor

3

POM

Paper exit motor

Stepping motor

4

TM

Toner motor

Synchronous motor

5

LUM

Lift-up motor

Synchronous motor

6

VFM2

Heat exhaust fan motor

Fan motor

7

VFM1

Cooling fan motor

Fan motor

8

CFM1

Suction fan motor

Fan motor

10

CFM2

Ozone exhaust fan motor

Fan motor

11

CPFC

Paper cassette paper feed clutch

12

TRC

Paper transport clutch

13

PSPS

Separation solenoid

14

RRC

Resist roller clutch

15

HDDFAN

Cooling fan motor (for HDD)

Fan motor

16

CNTFAN

Cooling fan motor (for controller)

Fan motor

17

PM

Polygon motor

Polygon motor

AR-M351N/M451N  UNPACKING AND INSTALLATION  6 - 1

There are many combinations between this machine and option
units. For installing option units, observe the following procedures
for efficiency.

To install the devices effciently, follow the procedure below.

Some peripheral devices may have been installed as standard
devices depending on the main unit model. 

Part of descriptions and illustrations may be different.

∗

For installation of an option unit, refer to the Service Manual of the option unit.

Scanner/document feeder device

Main unit

Main unit

Finishing device

Finishing device

Duplex/bypass device

Finishing device

Paper feeding device

Duplex device

Paper feeding device

Start of installation

End

AR-MU2
AR-D27
AR-D28

Main unit

AR-FX12/AR-MM9
AR-PK6
AR-NS3
Extended memory

AR-MU2/AR-D27/AR-D28/
AR-DU3/AR-DU4

AR-DU3
AR-DU4

AR-MS1
AR-FN6
AR-FN7
AR-PN1A / B / C / D

No

Yes

Duplex/bypass 

device installed?

 No

 No

Finishing device

installed?

Yes

Yes

Controller board,

facsimile unit or other

electric devices

installed?

When installing a paper feeding device or a duplex/bypass device, be sure to reattach 
the rear cabinet, the AC inlet cover, and the harness cover of the main unit at the end 
of installation as needed.
When installing a controller board, a facsimile unit, and other electric devices, be sure to install them
at a time.
Only off center adjustment is needed for AR-DU3.

Install controller board,
facsimile unit or other electric
devices.

2) Paper guide position adjustment/off center adjustment

1) Installation of driver software, setting,
    and operation check 

Main unit/AR-EF3/AR-FX12/AR-PK6/AR-NS3

[Electrical setting/adjustment]

Main unit, paper feeding 
device, and power supply 
unit.

Install duplex/pypass device.

Install finishing device.

* To install the AR-MU2, the optional exclusive-use desk is required.

AR-M351N/M451N  UNPACKING AND INSTALLATION  6 - 2

Improper installation may damage this product. Please note the
following during initial installation and whenever the machine is
moved.

1) The machine should be installed near an accessible power

outlet for easy connection.

2) Be sure to connect the power cord only to a power outlet that

meets the specified voltage and current requirements. Also
make certain the outlet is properly grounded.

• For the power supply requirements, see the name plate of

the main unit.

3) Do not install your machine in areas that are:

• damp, humid, or very dusty

• exposed to direct sunlight

• poorly ventilated

• subject to extreme temperature or humidity

changes, e.g., near an air conditioner or heater.

4) Be sure to allow the required space around the machine for

servicing and proper ventilation.

Check the following items are included in the package. 

23-5/8"

(60cm)

31-1/2"
(80cm)

11-13/16" (30cm)

23-5/8" (60cm)

Operating Manual (Common/Copier/Key Operation)

Install Guide
CD-ROM for Printer

CD-ROM for Network Interface 

Maintenance card/Maintenance case