Samsung ML-4551NR Bedienungsanleitung
DIGITAL LASER PRINT CONTENTS
[The keynote of Product]
- Series Model: ML-4550 / 4551N / 4551ND
- High speed Laser Printer:
Up to 43 ppm in 4 (45 ppm in Letter),
Duplex: 29 ipm ( 4); 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 L N, 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
Manual
SERVICE
Basic Model :ML-4550
ML-4551NR/XEV
fineline6
1. Prec utions
1.1 Safety Warning 1-1
1.2 Caution for safety 1-2
1.3 ESD Precautions 1-5
2. Product spec nd fe ture
2.1 Product Specifications 2-1
2.1.1 Product Overview 2-1
2.1.2 Specifications 2-1
2.1.3 Model Comparison Table 2-6
2.2 Summary of Product 2-1
2.2.1 Printer Components 2-7
2.2.2 System Layout 2-13
2.2.3 Engine H/W Specifications 2-17
3. Dis ssembly nd Re ssembly
3.1 General Precautions on Disassembly 3-1
3.2 Transfer Roller 3-2
3.3 MPF ss’y 3-3
3.4 Holder Pad ss'y 3-4
3.5 Retard ss'y 3-5
3.6 Feed2 Idle Unit 3-6
3.7 Cover Right 3-7
3.8 Main PB 3-8
3.9 Main Drive ss'y 3-9
3.10 DEVE Drive ss'y 3-10
3.11 Connector PB 3-11
3.12 Solenoid 3-12
Contents
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3.13 Rear Cover 3-13
3.14 Cover Left 3-14
3.15 Top Cover 3-15
3.16 Open Cover 3-16
3.17 Inner Cover 3-17
3.18 Fuser ss'y 3-18
3.19 Duplex Solenoid ss'y 3-20
3.20 Exit Roller 3-21
3.21 LSU 3-22
3.22 DC Fan 3-23
3.23 Toner Sensor PB 3-24
3.24 REGI ss'y 3-25
3.25 MP Pick Up ss'y 3-26
3.26 Pick Up & Feed2 ssy 3-28
3.27 Engine Shield 3-31
4. Alignment & Troubleshooting
4.1 lignment and djustments 4-1
4.1.1 How to use EDC (Engine Diagnostic Control) Mode 4-1
4.1.2 Paper Path 4-10
4.1.3 Sample Pattern 4-17
4.1.4 Periodic Defective Image 4-18
4.1.5 Error Messages 4-19
4.2 Troubleshooting 4-22
4.2.1 Procedure of Checking the Symptoms 4-22
4.2.2 The cause and solution of Bad image 4-23
4.2.3 The cause and solution of the bad discharge 4-39
4.2.4 The cause and solution of the malfunction 4-49
4.2.5 Maintaining the toner cartridge 4-59
4.2.6
The cause and solutions of bad environment of the software
4-65
Continued
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5. Exploded Views & P rts List
5.1 Main ssembly 5-2
5.2 Cover ssembly 5-5
5.3 Frame ssembly 5-8
5.4 Fuser Unit 5-14
5.5 REGI ssembly 5-16
5.6 Main Motor ssembly 5-18
5.7 Deve Motor ssembly 5-20
5.8 Exit Sorenoid ssembly 5-22
5.9 Cassette ssembly 5-24
5.10 Duplex Unit 5-26
5.11 SCF Unit 5-28
6. System Di gr m
6.1 Block Diagram 6-1
6.2 SCX-4200 Connection Diagram 6-3
7. Reference Inform tion
7.1 Troubleshooting Tools 7-1
7.2 cronyms and bbreviations 7-2
7.3 Select a location for the printer 7-4
7.4 Sample Tests Patterns 7-5
Continued
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Service Manual
4-1
Samsung Electronics
4
4
4. Adjustment and Troubleshooting
4.1 Alignment and Adjustments
4.1.1 How to use EDC (Engine Diagnostic Control) Mode
4.1.1.1 EDC etup
EDC(Engine Diagnostic Control, EDC will be used below) is considered to test and check whether each functions of
machinery and h/w module are normal or not. All of the test function are able to be controlled by the keys and CD
window on the panel without any other kits. It’s developed for related engineers, not for users.
4.1.1.2 Entrance method for EDC
In order to enter the EDC mode, the entering method should be special because this mode is developed for engineers
related, not for end users.
- Entering the mode, the message, COMPONENT TEST/Press Menu Key is displayed.
- In this mode, an engineer should press the Menu Key to search each function he would like to test.
• Usage
1. Check printer is powered on.
2. Wait until the printer becomes a ready mode.
3. Press Menu -> Stop -> eft -> Back -> Ok -> Right in order.
4. Confirm the message COMPONENT TEST/Press Menu Key is displayed.
5. Press Menu key.
6. Follow a usage for a function you would like to use.
* The procedure and content above can be changed according to the situation.
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Exploded Views & Parts List
Service Manual
5-1
Samsung Electronics
5
5
5. Exploded Views and Parts List (ML-4551NR/XEV)
5.1 Main Assembly 5-2
5.2 Cover Assembly 5-5
5.3 Frame Assembly 5-8
5.4 Fuser nit 5-14
5.5 REGI Assembly 5-16
5.6 Main Motor Assembly 5-18
5.7 Deve Motor Assembly 5-20
5.8 Exit Sorenoid Assembly 5-22
5.9 Cassette Assembly 5-24
5.10 Duplex nit 5-26
5.11 SCF nit 5-28
Contents
Contents
D G TAL LASER PR NT The keynote of Product
[The keynote of Product]
- Series Model: ML-4550 / 4551N / 4551ND
- High speed Laser Printer:
p to 43 ppm in A4 (45 ppm in Letter),
Duplex: 29 ipm (A4); 30 ipm (Letter)
- Resolution: p to 1200 x 1200 dpi
- Marvell 500Mhz
- Memory: 128 MB (Max. 512 MB)
128, or 256 MB optional memory available.
se 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 p to 150,000 pages
fineline6
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