Samsung ML-5000 Precautions

1. Precautions . . . . . . . . . . . . . . . . . 1-1

1-1 Safety Precautions . . . . . . . . . . . . . . . . . . . . . 1-1

1-2 Servicing Precautions . . . . . . . . . . . . . . . . . . . 1-2

1-3 ESD Precautions . . . . . . . . . . . . . . . . . . . . . . . 1-2

2. Specifications . . . . . . . . . . . . . . . 2-1

2-1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-1

2-2 Electrical . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-2

2-3 Print Quality . . . . . . . . . . . . . . . . . . . . . . . . . .2-3

2-4 Option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3

2-5 Paper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-4

3. Disassembly and Reassembly . . .3-1

3-1 Removal Procedures . . . . . . . . . . . . . . . . . . . . 3-1

3-2 Face-Up Cover and Front Cover . . . . . . . . . 3-1

3-3 Panel Board and Board Cover . . . . . . . . . . . 3-3

3-4 Transfer Roller . . . . . . . . . . . . . . . . . . . . . . . . 3-3

3-5 Top Cover and Rear Cover . . . . . . . . . . . . . . 3-4

3-6 Side Covers (Left, Right) . . . . . . . . . . . . . . . . 3-4

3-7 SMPS/Engine Control Board . . . . . . . . . . . . 3-5

3-8 Control Board . . . . . . . . . . . . . . . . . . . . . . . . 3-5

3-9 Joint Board . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6

3-10 Sensor Board . . . . . . . . . . . . . . . . . . . . . . . . 3-6

3-11 Gear Bracket . . . . . . . . . . . . . . . . . . . . . . . . . 3-7

3-12 Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7

3-13 HVPS Board . . . . . . . . . . . . . . . . . . . . . . . . . 3-8

3-14 LSU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8

3-15 Fuser . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9

3-16 Upper Frame . . . . . . . . . . . . . . . . . . . . . . . 3-10

3-17 Pressure Roller . . . . . . . . . . . . . . . . . . . . . . 3-10

3-18 Pickup Roller . . . . . . . . . . . . . . . . . . . . . . . 3-11

3-19 Installing SIMM . . . . . . . . . . . . . . . . . . . . . 3-12

4. Troubleshooting . . . . . . . . . . . . . . 4-1

4-1 Abnormal Image Printing and

Defective roller . . . . . . . . . . . . . . . . . . . . . . . .4-1

4-2 Print Quality . . . . . . . . . . . . . . . . . . . . . . . . . .4-1

4-3 Malfunction . . . . . . . . . . . . . . . . . . . . . . . . . .4-12

4-4 DCU Control . . . . . . . . . . . . . . . . . . . . . . . . .4-16

5. Exploded Views and Parts List . . 5-1

5-1 Main Exploded View . . . . . . . . . . . . . . . . . . . 5-2

5-2 Main Parts List . . . . . . . . . . . . . . . . . . . . . . . . 5-3

5-3 Front Cover Exploded View . . . . . . . . . . . . . 5-4

5-4 Front Cover Parts List . . . . . . . . . . . . . . . . . . 5-5

5-5 Top Cover Exploded View . . . . . . . . . . . . . . 5-6

5-6 Top Cover Parts List . . . . . . . . . . . . . . . . . . . 5-7

5-7 Fuser Exploded View . . . . . . . . . . . . . . . . . . 5-8

5-8 Fuser Parts List . . . . . . . . . . . . . . . . . . . . . . . 5-9

5-9 Frame Exploded View . . . . . . . . . . . . . . . . . 5-10

5-10 Frame Parts List . . . . . . . . . . . . . . . . . . . . . 5-11

5-11 Feeder (1/2) Exploded View . . . . . . . . . . . 5-12

5-12 Feeder (1/2) Parts List . . . . . . . . . . . . . . . 5-13

5-13 Feeder (2/2) Exploded View . . . . . . . . . . 5-14

5-14 Feeder (2/2) Parts List . . . . . . . . . . . . . . . . 5-15

5-15 Motor Exploded View . . . . . . . . . . . . . . . . 5-16

5-16 Motor Parts List . . . . . . . . . . . . . . . . . . . . . 5-17

5-17 PCB Exploded View . . . . . . . . . . . . . . . . . . 5-18

5-18 PCB Parts List . . . . . . . . . . . . . . . . . . . . . . 5-19

6. Electrical Parts List . . . . . . . . . . . .6-1

6-1 Controller (ML-5000A) . . . . . . . . . . . . . . . . . .6-1

6-2 Engine (220V) . . . . . . . . . . . . . . . . . . . . . . . . . .6-4

6-3 Engine (110V) . . . . . . . . . . . . . . . . . . . . . . . . . .6-7

6-4 Joint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-10

6-5 Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-11

6-6 Paper Empty . . . . . . . . . . . . . . . . . . . . . . . . .6-12

6-7 Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-13

7. Schematic Diagrams

7-1 Controller (ML-5000A) 1/7

Controller (ML-5000A) 2/7 Controller (ML-5000A) 3/7 Controller (ML-5000A) 4/7 Controller (ML-5000A) 5/7 Controller (ML-5000A) 6/7 Controller (ML-5000A) 7/7

7-2 Controller (ML-5000G) 1/2

Controller (ML-5000G) 2/2 7-3 OPE Panel (ML-5000A/G) 7-4 Engine (ML-5000A/G) 1/3

Engine (ML-5000A/G) 2/3

Engine (ML-5000A/G) 3/3 7-5 Joint Board (ML-5000A/G) 7-6 HVPS (ML-5000A/G) 1/3

HVPS (ML-5000A/G) 2/3

HVPS (ML-5000A/G) 3/3 7-7 Sensor (ML-5000A/G) 7-8 Switch (ML-5000A/G) 7-9 PTL (ML-5000A/G)

Contents

Samsung Electronics 1-1

1. Precautions

1-1 Safety Precautions

Read each caution carefully:

1. Do not use this printer near water or when exposed to inclement weather.

2. Do not place this printer on an unstable cart, stand or table; the product may fall, causing serious damage to the product.

3. Slots and openings in the cabinet are provided for ventilation. To ensure reliable operation and to protect the printer from everheating, do not block or cover any of these openings. Do not place the printer in an enclosure unless the enclosure provides adequate ventilation.

4. Never push objects of any kind into the printer through the cabinet ventilation slots as they may touch dangerous high voltage points, create short circuits, cause a fire, or produce an electrical shock. Never spill liquid of any kind on the printer.

5. Do not place the printer in a location where someone may trip on the cords.

6. Select a work surface that is large enough to hold the printer.

7. Position the printer within six feet of the computer and within five feet of an electrical outlet.

8. Operate this printer using the power source (110V, 220V, etc) indicated on the marking label. If you are not sure of the type of power source available, consult your dealer or local power company.

9. If you need to use an extension power cord with this printer, make sure that it uses a three-wire grounded cord and that the total ampere ratings for all of the products using the extension do not exceed the extension cord ampere rating. Also, make sure that the total of all products plugged into the wall outlet does not exceed 15 amperes.

10. Do not allow anything to rest on the power cord or data communications cable.

11. Unplug this printer from the wall outlet before cleaning. Do not use liquid cleaners or aerosol sprays. Use a damp cloth for cleaning.

12. Do not touch the surface of the photo-sensitive drum as marks or scratches may impair print quality.

13. Do not expose the drum unit to direct light for prolonged periods.

14. Use only standard papers, OHP films, and approved envelopes. Feed OHP films though the manual feed slot only. See specifications for approved papers and envelopes.

15. Other than replacing consumables such as paper and toner, refer all questions to qualified service personnel.

WARNING : NEVER OPERATE AND SERVICE THE PRINTER WITH THE

PROTECTIVE COVER REMOVED FROM LASER/SCANNER ASSEMBLY. THE REFLECTIVE BEAM, ALTHOUGH INVISIBLE, CAN DAMAGE YOUR EYES.

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