Disassembly & Reassembly.pdf

Disassembly and Reassembly

3. Disassembly and Reassembly

3.1 Precautions when replacing parts

3.1.1 Precautions when assembling and disassembling

* Use only approved Samsung spare parts. Ensure that part number, product name, any voltage, current or

temperature rating are correct. Failure to do so could result in damage to the machine, circuit overload, ire

or electric shock.

* Do not make any unauthorized changes or additions to the printer, these could cause the printer to

malfunction and create electric shock or ire hazards.

* Take care when dismantling the unit to note where each screw goes. There are 19 different screws. Use of

the wrong screw could lead to system failure, short circuit or electric shock.

* Do not disassemble the LSU unit. Once it is disassembled dust is admitted to the mirror chamber and will

seriously degrade print quality. There are no serviceable parts inside.

* Regularly check the condition of the power cord, plug and socket. Bad contacts could lead to overheating

and irfe. Damaged cables could lead to electric shock or unit malfunction.

3.1.2 Preautions when handling PBA

Static electricity can damage a PBA, always used approved anti-static precautions when handling or storing

a PBA.

>> Precautions when moving and storing PBA

1. Please keep PBA in a conductive case, anti-static bag, or wrapped in aluminum foil.

2. Do not store a PBA where it is exposed to direct sunlight.

>> Precautions when replacing PBA

1. Disconnect power connectors irst, before disconnecting other cables

2. Do not touch any soldered connections, connector terminals or other electronic parts when handling

insulated parts.

>> Precautions when checking PBA

1. Before touching a PBA, please touch other grounded areas of the chassis to discharge any static electrical

charge on the body.

2. Take care not to touch the PBA with your bare hands or metal objects as you could create a short circuit

or get an electric shock. Take extra care when handling PBAs with moving parts itted such as sensors,

motors or lamps as they may get hot.

3. Take care when itting, or removing, screws. Look out for hidden screws. Always ensure that the correct

screw is used and always ensure that when toothed washers are removed they are reitted in their original

positions.

3.1.3 Releasing Plastic Latches

Many of the parts are held in place with plastic latches. The latches break easily;

release them carefully.

To remove such parts, press the hook end of the latch away from the part to

which it is latched.

Service Manual

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Samsung Electronics

Disassembly and Reassembly

3.2 Parts for Maintenance and Repair

3.2.1 Replacement interval for parts with a limited life

Some of the parts in this printer have a limited life, shorter than that of the whole machine. These parts must

be replaced periodically.

The table below shows the interval at which these parts should be replaced.

The table shows the life of each part, and is measured when using A4 paper. When servicing a machine

always check the status of these parts using the control panel and ensure that parts are replaced at the

appropriate times otherwise a general degradation in print quality will occur.

Item

Pages Printed

Part number

Remark

Black Toner cartridge

Approx. Initial : 1,000 Pages*

Sales : 1,500 Pages*

CLT-K409S(Black)

CRU

Color Toner cartridge

Approx. Initial : 700 Pages*

Sales : 1,000 Pages*

CLT-C409S(Cyan)

CLT-M409S(Magenta)

CLT-Y409S(Yellow)

Imagine unit

Approx. 24000 images**

CLT-R409

Waste Toner

Approx. 10000 images

CLT-W409

Pick-up roller

Approx. 50,000 pages

JC97-03028A

FRU

Fuser unit

Approx. 100,000 black pages or 25,000

color pages

JC96-04781A (110V)

JC96-04780A (220V)

Transfer Unit

Approx. 100,000 pages

JC97-03046A

ITB

Approx. 100,000 black pages or 25,000

color pages

JC96-04840A

ADF Rubber Pad

Approx.20,000 Images

JC97-03188A

ADF Pick up roller

Approx.20,000 Images

JC97-03186A

* Average A4-/letter-sized page count based on Std. ISO 19798 of individual colors on each page. Usage conditions and

print patterns may cause results to vary.

** Image counts based on one color on each page. If you print documents in full color (Cyan, Magenta, Yellow, Black),

the life of this item will be reduced by 25%.

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Disassembly and Reassembly

3.2.2 Printer Cleaning

A printer should be regularly cleaned, especially if it is used in a dusty environment. This will ensure that print

quality remains high and failure due to contamination of printing services is less likely to occur.

* Clean the printer with a soft, lint free, cloth dipped in a “Recommended cleaner” “Recommended cleaner”

can be purchased from our service center. (where available)

* Do not touch the transfer roller when cleaning the inside of the printer. Grease and oils from the skin will

contaminate the surface and reduce print quality.

* Do not touch transfer roller when cleaning inside of machine. If transfer roller gets dirty, printing quality

could be low.

* Please refer to the User Manual for cleaning instructions.

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Samsung Electronics

Disassembly and Reassembly

3.3 Information Related to Disassembly and Assembly.

3.3.1 Special service parts

Never disassemble or adjust the items mentioned, a stock of these items should be maintained.

1) Disassembly of the LSU unit

There are no serviceable parts inside the LSU.

Alignment of the mirrors is critical.

Opening the LSU will allow dust into the laser

and signiicantly reduce print quality.

It is very dangerous to operate or service a

machine with the LSU open or system interlocks

disabled. Exposure to laser radiation can cause

blindness.

4) Disassembly of DEVE drive ass’y and

the main drive ass’y

The alignment of the drive mechanism is critical

and it has been set up in factory using a jig

and a driving gear. It is adjusted for the best

gearing alignment. If the motor is disassembled

alignment would not be maintained and

this could cause operational noise and

image problems: image alignment and toner

distribution may be affected.

2) Disassembly of the ITB unit

Do not disassemble the ITB. The alignment of

the home sensor is critical and is set up in the

factory on a special jig.

Incorrect re-assembly will cause print quality

degradation.

5) Disassembly of terminal parts

Do not adjust the variable resistors on the PBA.

They have been already adjusted in the factory.

3) Care of the Toner cartridge

Toner cartridges contain an extremely ine

powder. Please keep toner cartridges away from

children. The toner powder contained in the

toner cartridge may be harmful and if swallowed

you should contact a doctor. Take care not to

spill toner - spillages should be cleaned with

a vacume cleaner and washed in cold water

(hot water sets the toner). Do not touch the

developer roller surface as contamination will

reduce print quality. Take care not to damage

the roller’s surface when installing or removing

a toner cartridge.

6) Disassembly of the fuser unit

- The fuser melts toner onto the paper at a

high temperature: therefore, you need to take

special care not to get burned by a hot fuser.

When removing the fuser from a set that has

recently been operating you need to take extra

care.

- Do not touch an AC line (Copper contact) on a

main frame even after removing the fuser.

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Samsung Electronics

Disassembly and Reassembly

3.3.2 Screws used in the printer

The screws listed in the table below are used in this printer. Please ensure that, when you disassemble the

printer, you keep a note of which screw is used for which part and that, when reassembling the printer, the

correct screws are used in the appropriate places.

Sec_Code Location

Description

Qty

6001-000130

SCREW-MACHINE;BH,+,M3,L6,ZPC(WHT),SWRCH18A,-,-

6002-000440

MAIN DRIVE

SCREW-TAPPING;PWH,+,-,2,M3,L8,ZPC(BLK),SWRCH18A,- 21

6003-000301

SCREW-TAPTITE;BH,+,-,S,M4,L6,ZPC(WHT),SWRCH18A,-

6003-000196

SCREW-TAPTITE;PWH,+,B,M3,L10,NI PLT,SWRCH18A

FUSER

6003-000282

SCREW-TAPTITE;BH,+,-,B,M3,L8,ZPC(BLK),SWRCH18A,-

6003-000282 LSU

SCREW-TAPTITE;BH,+,-,B,M3,L8,ZPC(BLK),SWRCH18A,-

6003-000282 LSU LD UNIT

SCREW-TAPTITE;BH,+,-,B,M3,L8,ZPC(BLK),SWRCH18A,-

6003-000282 IMAGING UNIT

SCREW-TAPTITE;BH,+,-,B,M3,L8,ZPC(BLK),SWRCH18A,-

6003-000282 CARTRIDGE-TRANSFER

SCREW-TAPTITE;BH,+,-,B,M3,L8,ZPC(BLK),SWRCH18A,-

6003-000196 COVER PLATEN ASSY + COVER-UPPER F/R SCREW-TAPTITE;PWH,+,B,M3,L10,NI PLT,SWRCH18A

6003-000196 STANDARD ADF + COVER PLATEN ASSY

SCREW-TAPTITE;PWH,+,B,M3,L10,NI PLT,SWRCH18A

6003-000196 COVER UPPER + GUIDE PATH LOWER

SCREW-TAPTITE;PWH,+,B,M3,L10,NI PLT,SWRCH18A

6003-000196 GUIDE PATH LOWER + FRAME GUIDE PATH SCREW-TAPTITE;PWH,+,B,M3,L10,NI PLT,SWRCH18A

6003-000196 MOTOR ASSY + GUIDE PATH LOWER

SCREW-TAPTITE;PWH,+,B,M3,L10,NI PLT,SWRCH18A

6003-000269 ELA HOU-ADF MOTOR

SCREW-TAPTITE;BH,+,-,S,M3,L6,ZPC(WHT),SWRCH18A,-

6003-000196 FRAME-GUIDE PATH + BRACKET-PATH LOWER SCREW-TAPTITE;PWH,+,B,M3,L10,NI PLT,SWRCH18A

6003-000196 COVER-PLATEN + HINGE

SCREW-TAPTITE;PWH,+,B,M3,L10,NI PLT,SWRCH18A

6003-000196 COVER-SCAN UPPER TOP

SCREW-TAPTITE;PWH,+,B,M3,L10,NI PLT,SWRCH18A

6003-000196 ELA UNIT-SCAN LOWER

SCREW-TAPTITE;PWH,+,B,M3,L10,NI PLT,SWRCH18A

6003-000196 ELA UNIT-STANDARD SCAN

SCREW-TAPTITE;PWH,+,B,M3,L10,NI PLT,SWRCH18A

6003-000269 ELA UNIT-SCAN DRIVE

SCREW-TAPTITE;BH,+,-,S,M3,L6,ZPC(WHT),SWRCH18A,-

6003-000196 ELA UNIT-OPE

SCREW-TAPTITE;PWH,+,B,M3,L10,NI PLT,SWRCH18A

6003-000196 ADF BOARD

SCREW-TAPTITE;PWH,+,B,M3,L10,NI PLT,SWRCH18A

6003-000196 COVER-HARNESS

SCREW-TAPTITE;PWH,+,B,M3,L10,NI PLT,SWRCH18A

6003-000196 COVER-HARNESS(LSU)

SCREW-TAPTITE;PWH,+,B,M3,L10,NI PLT,SWRCH18A

6003-000196 COVER-MIDDLE

SCREW-TAPTITE;PWH,+,B,M3,L10,NI PLT,SWRCH18A

6003-000196 COVER-RIGHT

SCREW-TAPTITE;PWH,+,B,M3,L10,NI PLT,SWRCH18A

6003-000196 DRIVE

SCREW-TAPTITE;PWH,+,B,M3,L10,NI PLT,SWRCH18A

6003-000196 FUSER

SCREW-TAPTITE;PWH,+,B,M3,L10,NI PLT,SWRCH18A

6003-000196 HOUSING-HARNESS

SCREW-TAPTITE;PWH,+,B,M3,L10,NI PLT,SWRCH18A

6003-000196 HVPS

SCREW-TAPTITE;PWH,+,B,M3,L10,NI PLT,SWRCH18A

6003-000196 LSU

SCREW-TAPTITE;PWH,+,B,M3,L10,NI PLT,SWRCH18A

6003-000196 SHIELD-MAIN LOWER

SCREW-TAPTITE;PWH,+,B,M3,L10,NI PLT,SWRCH18A

Service Manual

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