Samsung SCX-4521F Series SCX-4321/XEV Digital Laser Multi-Function Printer Service Repair Manual

This is the COMPLETE factory Service Repair Manual for the Samsung SCX-4521F Series SCX-4321/XEV Digital Laser Multi-Function Printer. This Service Manual has easy-to-read text sections with top quality diagrams and instructions as well as step-by-step instructions for repairing your SAMSUNG machine. it makes it easy for you to learn technical theory, installation, maintenance, troubleshooting, disassembly, assembly and repair of SAMSUNG products.

This Manual Covers:
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1. Precautions
1.1 Safety Warning
1.2 Safety Caution
1.3 ESD Precautions
2. Product Specification
2.1 Product Overview
2.2 Specifications
2.3 Model Comparison Table
3. System Overview
3.1 System Outline
3.2 H/W Structure and Descriptions
3.3 S/W Structure and Descriptions
3.4 Initial Product Installation
4. Alignment and Adjustments
4.1 Sample Pattern
4.2 Control Panel
4.3 Consumables and Replacement Parts
4.4 LED Status Error Messages
4.5 Periodic Defective Image
4.6 How to use DCU
4.7 Paper Path
5. Disassembly and Reassembly
5.1 General Precautions on Disassembly
5.2 Disassembly and Reassembly
6. Troubleshooting
6.1 Checking Symptoms
6.2 Bad discharge
6.3 Malfunction
6.4 Bad software environment
6.5 Bad Image
7. Exploded Views & Parts List
7.1 Exploded Views and Parts List
8. Block diagram
8.1 System Block Diagram
8.2 System Timing Chart
9. Connection Diagram
9.1 Connection Diagram
10. Schematic Diagram
10.1 Main Board
10.2 Connector Circuit Diagram
10.3 SMPS Circuit Diagram
10.4 HVPS Circuit Diagram
11. Reference Information
11.1 Troubleshooting Tools
11.2 Acronyms and Abbreviations
11.3 Selecting printer locations
11.4 Sample Tests Patterns
12. Circuit Description
12.1 Engine Controller

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Model Specification: Samsung SCX-4521F Series SCX-4321/XEV Digital Laser Multi-Function Printer
Total Pages: 173
File Format: PDF
Requirements: Adobe PDF Reader
Language: English
Compatible: All Versions of Windows & Mac, APP ISO, Iphone, Ipad, Android etc...

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This manual is in PDF format, This is an original Adobe document which equals Perfect Quality and Perfect Printing. The PDF can be searched quickly to find what you need to know in every Chapter. You can print the Entire manual or ANY Pages you want to select. You can also Zoom in on any Diagram or Picture to easily SEE EVERY PART.

Save time and money by doing your own repairs! This manual makes any repair job easy to do with very easy to follow step-by-step instructions & pictures on all areas of repair.

ALL Service Repair Manual are INSTANT DOWNLOAD, it means no shipping cost or waiting for a CD or paper manual to arrive in the mail. you will receive this manual today via instant download on completion of payment via our secure payment processor. We accept all major credit/debit cards and paypal.

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