ML-4550.pdf

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178827123 UNPDF

DIGITAL LASER PRINT

ML-4550 Series

ML-4550/XEV

Basic Model : ML-4550

SERVICE

Manual

DIGITAL LASER PRINT

CONTENTS

[The keynote of Product]

- Series Model: ML-4550 / 4551N / 4551ND

- High speed Laser Printer:

Up to 43 ppm in A4 (45 ppm in Letter),

Duplex: 29 ipm (A4); 30 ipm (Letter)

- Resolution: Up to 1200 x 1200 dpi

- Marvell 500Mhz

- Memory: 128 MB (Max. 512 MB)

128, or 256 MB optional memory available.

Use only the Samsung-approved DIMM.

128 MB: ML-MEM150, 256 MB: ML-MEM160

- Option:

ML-4550:500-sheet trays, ethernet 10/100 Base

TX wired LAN, ethernet 10/100 Base

hard disk, duplex unit, DIMM

- Toner cartridge:

Starter: 10K or 20K pages

Consumable: 10K or 20K pages

- Duty cycle: Monthly Up to 150,000 pages

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ELECTRONICS

* This service manual is a property of Samsung Electronics Co., Ltd.

Any unauthorized use of Manual can be punished under applicable

international and/or domestic law.

Samsung Electronics Co.,Ltd. Mar. 2006

Printed in Korea.

VERSION NO . : 1.00 CODE : JC-0168H

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Contents

1. Precautions

1.1 Safety Warning

1-1

1.2 Caution for safety

1-2

1.3 ESD Precautions

1-5

2. Product Specifications

2.1 Product Overview

2-1

2.2 Specifications

2-1

2.3 Model Comparison Table

2-6

3. Summary of Product

3.1 Printer Components

3-1

3.2 System Layout

3-7

3.3 Engine H/W Specifications

3-11

4. Alignment and Adjustments

4.1 How to use EDC (Engine Diagnostic Control) Mode

4-1

4.2 Paper Path

4-10

4.3 Sample Pattern

4-17

4.4 Periodic Defective Image

4-18

4.5 Error Messages

4-19

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Continue...

5. Disassembly and Reassembly

5.1 General Precautions on Disassembly

5-1

5.2 Transfer Roller

5-2

5.3 MPF Ass’y

5-3

5.4 Holder Pad Ass'y

5-4

5.5 Retard Ass'y

5-5

5.6 Feed2 Idle Unit

5-6

5.7 Cover Right

5-7

5.8 Main PBA

5-8

5.9 Main Drive Ass'y

5-9

5.10 DEVE Drive Ass'y

5-10

5.11 Connector PBA

5-11

5.12 Solenoid

5-12

5.13 Rear Cover

5-13

5.14 Cover Left

5-14

5.15 Top Cover

5-15

5.16 Open Cover

5-16

5.17 Inner Cover

5-17

5.18 Fuser Ass'y

5-18

5.19 Duplex Solenoid Ass'y

5-20

5.20 Exit Roller

5-21

5.21 LSU

5-22

5.22 DC Fan

5-23

5.23 Toner Sensor PBA

5-24

5.24 REGI Ass'y

5-25

5.25 MP Pick Up Ass'y

5-26

5.26 Pick Up & Feed2 Assy

5-28

5.27 Engine Shield

5-31

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Continue...

6. Troubleshooting

6.1 The cause and solution of Bad image

6-1

6.2 The cause and solution of the bad discharge

6-8

6.3 The cause and solution of the malfunction

6-13

6.4 Maintaining the toner cartridge

6-17

6.5 The cause and solutions of bad environment of the software

6-22

7. Exploded Views & Parts List

7.1 Main Assembly

7-2

7.2 Cover Assembly

7-3

7.3 Frame Assembly

7-4

7.4 Fuser Unit

7-6

7.5 REGI Assembly

7-7

7.6 Main Motor Assembly

7-8

7.7 Deve Motor Assembly

7-9

7.8 Exit Sorenoid Assembly

7-10

7.9 Cassette Assembly

7-11

7.10 Duplex Unit

7-12

7.11 SCF Unit

7-13

8. Block diagram

8.1 System Block Diagram

8-1

9. Connection Diagram

9.1 Connection Diagram

9-1

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Plik z chomika:

Inne pliki z tego folderu:

ML-4550[9].pdf (1090 KB)
ML-4550[8].pdf (1218 KB)
ML-4550[7].pdf (591 KB)
ML-4550[6].pdf (8185 KB)
ML-4550[5].pdf (522 KB)

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