DOWNLOAD Sharp AR-122E (serv.man3) Service Manual ↓ Size: 6.58 MB | Pages: 127 in PDF or view online for FREE

AR-122E/152E/153E/157E  EXTERNAL VIEWS AND INTERNAL STRUCTURES  4 - 5

1

2

11

9

10

3

4

12

5

6

13

7

8

No.

Name

Signal

Type

Function

Output

1

Scanner unit home position 
sensor

MHPS

Transmission sensor

Scanner unit home position detection

"H" at home position

2

POD sensor

POD

Transmission sensor

Paper exit detection

"H" at paper pass

3

PPD2 sensor

PPD2

Transmission sensor

Paper transport detection 2

"L" at paper pass

4

Cassette detection switch

CED1

Micro-switch

Cassette installation detection

"L" at cassette insertion

5

Manual feed detection 
switch

MFD

Transmission sensor

Manual feed paper detection
 (single only)

"L" at paper detection

6

PPD1 sensor

PPD1

Transmission sensor

Paper transport detection 1

"L" at paper pass

7

Door switch

DSW

Micro-switch

Door open/close detection 
(safety switch for 24V)

1 or 0V of 24V at door open

8

Drum reset switch

DRST

Micro-switch

New drum detection switch

Instantaneously "L" at insertion of new 
drum

9

SPF sensor

SPID/
SD SW

Transmission sensor

Paper entry detection
Cover open/close detection

"L" at paper pass

10

SPPD sensor

SPPD

Transmission sensor

Paper transport detection

"L" at paper pass

11

SDOD sensor

SDOD

Transmission sensor

SPF open/close detection Book 
sensor

"L" at paper pass

12

2nd cassette

DSW

Micro-switch

2nd cassette door open detection

1 or 0V of 5V at door open

13

PPD3 sensor

PPD3

Transmission sensor

Paper transport detection 3

"L" at paper pass

AR-122E/152E/153E/157E  EXTERNAL VIEWS AND INTERNAL STRUCTURES  4 - 6

2

4

5

1

8

3

6

7

9

No.

Name

Function

1

Exposure lamp invertor PWB

Exposure lamp (CCFL) control

2

Main PWB (MCU)

Copier control

3

Operation PWB

Operation input/display

4

Power PWB

AC power input, DC voltage control, High voltage control

5

CCD sensor PWB

For image scanning

6

LSU motor PWB

For polygon motor drive

7

TCS PWB

For toner sensor control

8

LSU PWB

For laser control

9

I/F PWB

Scanner/GDI Printer control (parallel I/F, USB I/F)

AR-122E/152E/153E/157E  EXTERNAL VIEWS AND INTERNAL STRUCTURES  4 - 7

3

4

5

18

8

9

10

11

6

7

12

13

14

1

2

15

16

17

No.

Part name

Function and operation

1

Scanner unit

Illuminates the original with the copy lamp and passes the reflected light to the lens unit(CCD).

2

Exposure lamp

Exposure lamp (CCFL) Illuminates original

3

LSU (Laser unit)

Converts the original image signal into laser beams and writes onto the drum.

4

Paper exit roller

Roller for paper exit

5

Main charger

Provides negative charges evenly to the drum surface.

6

Heat roller

Fuses toner on the paper. (Teflon roller)

7

Pressure roller

Fuses toner on the paper. (Silicon rubber roller)

8

Drum

Forms images.

9

Transfer unit

Transfers images onto the drum.

10

Pickup roller

Picks up the manual feed paper. (In multi feed only)

11

Manual paper feed tray

Tray for manual feed paper

12

Manual paper feed roller

Transport the paper from the manual paper feed port.

13

PS roller unit

Takes synchronization between the lead edge and the rear edge of the paper.

14

Paper feed roller

Picks up a sheet of paper from the cassette.

15

Pickup roller

Picks up documents.

16

Separation roller

Separates documents to feed properly.

17

PS roller

Feeds documents to the scanning section.

18

Paper exit roller

Discharges documents.

AR-122E/152E/153E/157E  UNPACKING AND INSTALLATION  5 - 1

Improper installation may damage the copier. Please note the following
during initial installation and whenever the copier is moved.

Caution: If the copier is moved from a cool place to a warm place, con-

densation may form inside the copier. Operation in this condi-
tion will cause poor copy quality and malfunctions.
Leave the copier at room temperature for at least 2 hours
before use.

Do not install your copier 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.

The copier should be installed near an accessible power outlet for easy
connection.

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.

Be sure to allow the required space around the machine for servicing
and proper ventilation.

Be careful in handling the copier as follows to maintain the perfor-
mance of this copier.

Do not drop the copier, subject it to shock or strike it against any
object.

Do not expose the drum cartridge to direct sunlight.

Doing so will damage the surface (green portion) of the drum cartridge,
causing poor print quality.

Store spare supplies such as drum cartridges and TD cartridges in a
dark place without removing from the package before use.

If they are exposed to direct sunlight, poor print quality may result.

Do not touch the surface (green portion) of the drum cartridge.

Doing so will damage the surface of the cartridge, causing poor print
quality.

Open the carton and check if the following components and accesso-
ries are included.

8"(20cm)

8" (20cm)

4"

(10cm)

4"
(10cm)

Drum cartridge 

(installed in unit)

Operation manual

Power cord