Samsung SCX 6220 Disassembly & Reassembly

Precautions

Service Manual

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Samsung Electronics

5. Disassembly and Reassembly

5.1 General Precautions on Disassembly

When you disassemble and reassemble components, you must use extreme caution. The close proximity of cables to moving parts makes proper routing a must. If components are removed, any cables disturbed by the procedure must be restored as close as possible to their original positions. Before removing any component from the machine, note the cable routing that will be affected.

Whenever servicing the machine, you must perform as follows:

1. Check to verify that documents are not stored in memory.

2. Be sure to remove the toner cartridge before you disassemble any parts.

3. Unplug the power cord.

4. Use a flat and clean surface.

5. Replace only with authorized components.

6. Do not excessive force on components made of plastic, they may break.

7. Make sure all components are in their proper position.

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

Precautions

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Samsung Electronics

5.2 Rear Cover

1. Remove the six screws securing the Rear Cover. 2. Separate the rear cover from the base frame and Scanner Ass'y .

5.3 Removing the LIU PBA

1. Before you remove the Scanner Ass'y, you should

remove:

- Rear Cover (see page 5-1)

2. Remove the screw securing the Cover Panel MFP

3. Remove 2 screws securing the PBA and disconnect the LIU harness. Release the plastic supporting clip and remove the LIU

ScrewScrew

Supporting ClipSupporting Clip

LIU HarnessLIU Harness

Rear Cover

Precautions

Service Manual

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Samsung Electronics

5.4 Scanner Ass’y

1. Before you remove the Scanner Ass'y, you should remove:

- Rear Cover (see page 5-2)

- LIU PBA (see page 5-2)

2. Unplug the DADF harness connector and CCD cable.

Notice : When removing the CCD flat cable pull firmly

taking care not to bend or crack the cable.

3. The side and front covers are interlocked. Open the side door before opening the front door. When closing the doors the front door must be closed before the side door. Open the front and side doors to gain access to the screws in the following steps.

4. Remove the three screws, as shown below. Also remove the single screw securing 2 ground cables.

5. Remove two screws.

Main Shield

Front Cover

Side Cover Ass'y

Service Manual

Precautions

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Samsung Electronics

6. Pull up the Scanner Ass'y in the direction of arrow.

7. Remove the DADF Main Cable.

8. Open the DADF Ass’y in the direction of arrow. Pull the DADF Ass'y upward and remove it.

9. Remove the three screws securing the Platen Ass'y.

Scanner Ass'y

DADF Main Cable

Clips

Precautions

Service Manual

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Samsung Electronics

10. Pull the OPE Ass'y and unplug the one connector.

11. Remove the five screws securing the Platen Ass'y.

12. Release 2 clips (1 each side) to release the Scan Upper Ass'y securing the glass and remove it. Take care to ensure that the DADF connector is clear.

Notice : When reassembling the Scan Upper take care

to ensure that the Lever Sensor is free to operate

13. Remove the two screws to remove the Dummy Upper Ass'y .

Notice : Dust or other foreign matter can cause the

module to jam or image quality to deteriorate. Only open the scanner in a clean environment and ensure all parts are clean when

reassembling the scanner.

OPE Ass'y

Lever Sensor

Scan Upper Ass'y

Hook

Dummy Upper Ass'y

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Precautions

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Samsung Electronics

14. Remove four screws to release the Channel Base Frame.

15. Remove the five screws securing the Cover Dummy Lower and remove it.

16. Remove the CCD cable cover by flexing and releasing the front clip. Slide the scan module to a position half way along the scanner bed and raise it to a vertical position. Disconnect the CCD cable

17. Release the belt from the underside of the scanner module. Unclip the Shaft CCD and take out the Scanner Module.

Channel Base Frame

CCD Cable Cover

Cover Dummy Lower

Cover Scan Lower

CCD Cable

Precautions

Service Manual

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Samsung Electronics

18. Disconnect the motor harness. Remove three screws and take out the Motor Bracket.

19. Remove the OPE Harness from the Platen PBA. Remove two screws and take out the Platen PBA.

Notice : Take care when reassembling the scanner

module to the belt. The CCD Module should be located just to the right of the belt tension spring as shown below.

Motor Bracket

Shaft CCD

Pully

Belt

Scanner Module

Spring Belt

Service Manual

Precautions

5-8

Samsung Electronics

5.5 DADF Ass’y

1. Before you remove the DADF Ass'y, you should remove:

- Rear Cover (see page 5-2)

- LIU PBA (see page 5-2)

- Scanner Ass'y (see page 5-3)

2. Open the Open Cover Ass’y

3. Remove the one screw securing the COVER-M-FRONT and unlatch the COVER-M-FRONT using a flat-blade screwdriver, as shown below. Then pull the COVER-MFRONT upward and remove it.

4. Remove the two screws securing the COVER-M-REAR and release the stopper. Then pull the COVER-M-REAR upward and remove it.

5. Remove the TX Stacker

Open Cover Ass'y

COVER-M-REAR

Stopper

COVER-M-FRONT

Platen Cover Ass’y

TX Stacker Ass’y

+ 18 hidden pages