Samsung SF-531P, SF-530 Disassemble

3-1

Samsung Electronics

3. Disassembly and Reassembly

3-1 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 parts.

3. Unplug the power cord.

4. Use a flat and clean surface.

5. Replace only with authorized components.

6. Do not force plastic-material components.

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.

3-2 Cradle

1. Push the lever and remove the cradle as shown below.

3-3 White Roller

1. Open the OPE cover.

2. Push the bushing on the end of the Roller slightly inward, then rotate it until it reaches the slot. Then lift, the Roller out.

Note : Check the Roller for any dirt. If dirty, wipe it off with

soft cloth dampened with water. If the Roller is heavily worn, replace it with a new one.

3-2

Samsung Electronics

Disassembly and Reassembly

Control Panel

Bushing

White Roller

3-4 OPE Cover

1. Pull the cover release button on both sides of the machine, and open the front cover.

2. Remove two stoppers holding the front cover unit and unplug one connector and one wire.

3. Pull the bottom left end of the cover downward to unlatch the front cover unit and remove the cover from the main frame.

4. Remove two screws securing bracket scan board, then take out the bracket scan board.

5. Unplug two connectors and one wire from the scan board.

6. Lift the OPE cover.

Samsung Electronics

3-3

Disassembly and Reassembly

7. Remove the stopper holding the OPE cover.

8. Unlatch the bottom ends, then remove the OPE cover.

3-4

Samsung Electronics

Disassembly and Reassembly

3-5 ADF Rubber

1. Open the OPE unit.

2. Insert a flat blade screw driver and pinset into the slot as shown below, and release the latches. Take out the Holder Rubber, Sheet ADF and the Rubber ADF.

Notes : • When you reassemble the them, be sure that

the Rubber ADF and Holder Rubber fit into the guide boss and the Holder Rubber latches fit into the corresponding hole. Then push firmly until it clicks.

3. Clean the surface of the rubber pad with IPA(Isopropyl Alcohol). After wiping it, be sure to dry it. Check the rub ber wear. If the wear reaches 1/2 its original thickness, replace it with a new one.

Samsung Electronics

3-5

Disassembly and Reassembly

Holder Rubber

Rubber ADF

Guide Boss

Holder Rubber

Rubber ADF

Pinset or Screw Driver

Safely Precautions :

Do not force to open or fasten plastic material components.

Rubber ADF

Guide Boss

Holder Rubber

3-6 OPE Board

1. Before you remove the OPE board, you should remove:

– OPE cover (see page 3-3)

2. Remove four screws securing the OPE board.

3. Release two latches securing the both side of the LCD and the two of four latches securing the board. Then remove the OPE board.

3-6

Samsung Electronics

Disassembly and Reassembly

3-7 Lever Sensor Doc.

1. Unlatch the lever sensor Doc from the scan upper frame and take it out.

3-8 Lever Sensor Scan

1. Push the both sides of Lever sensor Scan inward, then unlatch and take out the sensor Scan from the scan upper frame.

3-9 Scan Board

1. Before you remove Scan board, you should remove: – Bracket scam board (see page 3-3)

2. Unplug all the connectors from the scan board and remove the board.

Samsung Electronics

3-7

Disassembly and Reassembly

3-10 Scan Motor

1. Before you disassemble Scan Motor , you should remove:

– OPE cover (see page 3-3) – Bracket scan board (see page 3-3)

2. Unplug one connector from the scan board.

3. Remove three screws, then remove the motor Ass’y from the main frame.

4. Take out the gear from the Motor Ass’y.

5. Remove two screws and remove the motor.

3-11 ADF Roller

1. Before you remove the ADF Roller, you should remove:

– OPE cover (see page 3-3)

2. Remove two screws securing the guide paper and remove the guide paper.

3. Remove ADF Roller from the scan front frame.

3-8

Samsung Electronics

Disassembly and Reassembly

Guide Paper

ADF Roller

3-12 CIS

1. Remove one screw and push CIS as shown below and lift it.

2. Separate the Dummy CIS from CIS.

CIS

tape

+ 16 hidden pages