Samsung SF 3000, SF3000T Disassembly & Reassembly

3. Disassembly

3-1. General Precautions on Disassembly

When disassemble and reassembling components, use extreme caution. The close proximity of cables to moving
parts makes proper routing a must. If components are removed or replaced, any cables
disturbed by the procedure must be replaced 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 the following:

1. Check that documents are not stored in memory.

2. Remove the print cartridge.

3. Unplug the power cord.

4. Work on a flat and clean surface.

5. Replace only with authorized components.

6. Do not force plastic components.

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

3-2. White Roller

1. Lift the control panel.

2. Push the white clip on each end of the roller
slightly inward, then rotate it until it reaches the
slot, as shown below. Then lift the roller out.

B

white clip

Control panel

A

Note : Check the roller for dirt. If dirty, wipe it off

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

White roller

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Disassembly

3-3. Rear Cover

1. Holding the paper guide, move it in the direction
of arrow.

Paper guide

3. Holding the rear cover ass’y, take it out by
rotating it to release properly.

2. Remove the six screws, as shown below.

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3-4. Top Cover and Speaker

Disassembly

1. Before you disassemble the top cover, you should
remove:

– Rear Cover (see page 6-2)

2. Remove the handset, and unplug the connector
from the main board.

4. Remove the four screws securing the cover.

3. Release the tie stopper supporting the control
panel.

Tie stopper

5. If you want to remove the speaker, turn the top
cover over, and remove the two screws securing
it.

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Disassembly

3-5. Scan Motor

1. Before disassembling the scan motor, you should
remove:

– Rear Cover (see page 6-2)
– Top Cover (see page 6-3)

2. Unplug the motor connector from the main
board. Make sure the harness is released from the
two hooks, as shown below.

4. Remove the ground plate.

3. Remove the two screws as shown below.

Ground plate

5. Remove the ground screw securing the motor to
the motor bracket.

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3-6. ADF Roller and Contact Image Sensor (CIS)

Disassembly

1. Before disassembling the roller and CIS, you
should remove:

– Rear Cover (see page 6-2)
– Top Cover (see page 6-3)

2. Remove the ADF roller. When you assemble the
roller, make sure it is properly hooked.

3. Unplug the CIS harness, then remove the CIS
ass’y. To remove the CIS ass’y, turn it up and
slide the two legs far left, and pull it up.

Note : Clean the surface of the roller with ethyl

alcohol. After wiping it, you must dry it
completely.

4. Remove the CIS from the bracket.

CIS

Note: Check the glassy surface of the CIS for stains

or scratches. If stained, wipe off with ethyl
alcohol. If it is heavily scratched, replace it
with a new one.

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