This is the COMPLETE Service Repair Manual for the Samsung ML-4550 Series ML-4551N/XAZ Laser Printer. It contains deep information about maintaining, assembly, disassembly and servicing your Samsung ML-4550 Series ML-4551N/XAZ Laser Printer.
The Service Manual contains detailed information, has specs, diagrams, and actual real photo illustrations, and schemes, which give you complete step-by-step operations on repair, Diagnosing, servicing, technical maintenance & troubleshooting procedures for your Samsung ML-4550 Series ML-4551N/XAZ Laser Printer. this manual offers full information you need for repair your Samsung ML-4550 Series ML-4551N/XAZ Laser Printer. the information in this manual will enable you to find trouble and to understand how to repair and maintain your machine without going into service. YOU CAN DO THE REPAIRS YOURSELF AND SAVE MONEY $$$
Service Repair Manual Contains:
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1. Precautions
1.1 Safety Warning
1.2 Caution for safety
1.3 ESD Precautions
2. Product spec and feature
2.1 Product Specifications
2.1.1 Product Overview
2.1.2 Specifications
2.1.3 Model Comparison Table
2.2 Summary of Product
2.2.1 Printer Components
2.2.2 System Layout
2.2.3 Engine H/W Specifications
3. Disassembly and Reassembly
3.1 General Precautions on Disassembly
3.2 Transfer Roller
3.3 MPF Ass’y
3.4 Holder Pad Ass’y
3.5 Retard Ass’y
3.6 Feed2 Idle Unit
3.7 Cover Right
3.8 Main PBA
3.9 Main Drive Ass’y
3.10 DEVE Drive Ass’y
3.11 Connector PBA
3.12 Solenoid
3.13 Rear Cover
3.14 Cover Left
3.15 Top Cover
3.16 Open Cover
3.17 Inner Cover
3.18 Fuser Ass’y
3.19 Duplex Solenoid Ass’y
3.20 Exit Roller
3.21 LSU
3.22 DC Fan
3.23 Toner Sensor PBA
3.24 REGI Ass’y
3.25 MP Pick Up Ass’y
3.26 Pick Up & Feed2 Assy
3.27 Engine Shield
4. Alignment & Troubleshooting
4.1 Alignment and Adjustments
4.1.1 How to use EDC (Engine Diagnostic Control) Mode
4.1.2 Paper Path
4.1.3 Sample Pattern
4.1.4 Periodic Defective Image
4.1.5 Error Messages
4.2 Troubleshooting
4.2.1 Procedure of Checking the Symptoms
4.2.2 The cause and solution of Bad image
4.2.3 The cause and solution of the bad discharge
4.2.4 The cause and solution of the malfunction
4.2.5 Maintaining the toner cartridge
4.2.6 The cause and solutions of bad environment of the software
5. Exploded Views & Parts List
5.1 Main Assembly
5.2 Cover Assembly
5.3 Frame Assembly
5.4 Fuser Unit
5.5 REGI Assembly
5.6 Main Motor Assembly
5.7 Deve Motor Assembly
5.8 Exit Sorenoid Assembly
5.9 Cassette Assembly
5.10 Duplex Unit
5.11 SCF Unit
6. System Diagram
6.1 Block Diagram
6.2 SCX-4200 Connection Diagram
7. Reference Information
7.1 Troubleshooting Tools
7.2 Acronyms and Abbreviations
7.3 Select a location for the printer
7.4 Sample Tests Patterns
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** Model Specification: Samsung ML-4550 Series ML-4551N/XAZ Laser Printer
** Language: English
** Total Pages: 172
** File Format: PDF
** Requirements: Adobe PDF Reader
** Compatible: All Versions of Windows & Mac, Linux OS, Iphone, Ipad, Android etc…
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