Samsung SCX-4824FN/XFA User manual

Service Manual
DIGITAL LASER MFP
Model : SCX-4824FN/XFA
Basic : SCX-4824FN/SCX-4828FN
- Print/Copy Speed
SCX-4824FN : 24 ppm (A4) / 24 cpm (A4)
SCX-4828FN : 28 ppm (A4) / 28 cpm (A4)
- Print resolrution
: 1200 dpi effective output
- CPU : 360 Mhz
- PCL5e, PCL6, IBM ProPrinter, EPSON PS(4828FN)
- Memory
SCX-4824FN : 64MB(Max. 320MB)
SCX-4828FN : 128MB(Max. 384MB)
- ADF : 30(4824FN) / 50(4828FN) Sheet
- MP : 1 Sheet
- Toner : 2K(Initial)/ 5K(Sales)
The keynote of Product

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Samsung Electronics Co.,Ltd. September. 2008
Printed in Korea.
VERSION NO. : 1.00 CODE : 4824-FN0XFA
GSPN (Global Service Partner Network)
North America : service.samsungportal.com
Latin America : latin.samsungportal.com
CIS : cis.samsungportal.com
Europe : europe.samsungportal.com
China : china.samsungportal.com
Asia : asia.samsungportal.com
Mideast & Africa : mea.samsungportal.com

1.1 Safety Warning …………………………………………………… 1-1
1.2 Caution for safety ………………………………………………… 1-2
1.3 ESD Precautions ………………………………………………… 1-5
1.4 Super Capacitor or Lithium Battery Precautions ……………… 1-5
3URGXFW6SHFL¿FDWLRQV …………………………………………… 2-1
2.1.1 Product Overview …………………………………………… 2-1
6SHFL¿FDWLRQV ………………………………………………… 2-2
2.1.3 Model Comparison…………………………………………… 2-9
2.2 Summary of Product …………………………………………… 2-10
2.2.1 Printer Components ………………………………………… 2-10
2.2.2 System Layout ……………………………………………… 2-12
(QJLQH+:6SHFL¿FDWLRQV ………………………………… 2-16
2.2.4 S/W Descriptions …………………………………………… 2-27
3.1 Disassembly and Reassemblyons on Disassembly ………… 3-1
3.1.1 Screws used in the printer ………………………………… 3-2
3.2 General Disassembly …………………………………………… 3-3
3.2.1 Front Cover …………………………………………………… 3-3
3.2.2 Rear Cover …………………………………………………… 3-3
3.2.3 Right/Left Cover ……………………………………………… 3-4
3.2.4 Scan and ADF Assy ………………………………………… 3-5
3.2.5 Middle Cover ………………………………………………… 3-9
3.2.6 Fuser ………………………………………………………… 3-9
3.2.7 LSU …………………………………………………………… 3-10
3.2.8 Main Drive Assy ……………………………………………… 3-10
3.2.9 HVPS/SMPS/Main board …………………………………… 3-11
chapter 1 Precautions
chapter 2 Product spec and feature
Contents
chapter 3 Disassembly and Reassembly

3.2.10 Transfer roller ……………………………………………… 3-12
3.2.11 Holder Pad unit……………………………………………… 3-13
4.1 Alignment and Adjustments……………………………………… 4-1
4.1.1 Control Panel overview ……………………………………… 4-1
4.1.2 Understanding The Status LED …………………………… 4-2
4.1.3 Paper path …………………………………………………… 4-3
4.1.4 Menu Map …………………………………………………… 4-10
4.1.5 Tech Mode …………………………………………………… 4-12
4.1.6 EDC Mode …………………………………………………… 4-17
4.1.7 Abnormal Image Printing and Defective Roller …………… 4-23
4.1.8 Error Message ……………………………………………… 4-24
4.2 Troubleshooting…………………………………………………… 4-28
4.2.1 Procedure of Checking the Symptoms …………………… 4-28
4.2.2 The cause and solution of Bad image……………………… 4-29
4.2.3 The cause and solution of the bad discharge …………… 4-45
4.2.4 The cause and solution of the malfunction………………… 4-53
4.2.5
The cause and solutions of bad environment of the software 4-62
4.2.6 Fax & Phone Problems ……………………………………… 4-66
4.2.7 Copy Problems ……………………………………………… 4-75
4.2.8 Scanning Problems ………………………………………… 4-79
Thumbnail ……………………………………………………………… 5-2
5.1 Main ……………………………………………………………… 5-3
5.2 Cover Ass’y ……………………………………………………… 5-5
5.3 Cover Middle ……………………………………………………… 5-7
5.4 Frame ……………………………………………………………… 5-9
5.5 Main Drive ………………………………………………………… 5-15
5.6 Scan Ass’y ………………………………………………………… 5-17
chapter 4 Alignment & Troubleshooting
Contents
chapter 5 Exploded Views & Parts List

5.7 ADF Ass’y ………………………………………………………… 5-19
5.8 Platen Ass’y ……………………………………………………… 5-21
5.9 OPE Unit ………………………………………………………… 5-23
5.10 Duplex Unit ……………………………………………………… 5-25
5.11 Fuser……………………………………………………………… 5-27
5.12 Cassette ………………………………………………………… 5-30
5.13 SCF ……………………………………………………………… 5-32
6.1 Block Diagram …………………………………………………… 6-1
6.2 Connection Diagram……………………………………………… 6-2
7.1 Tool for Troubleshooting ………………………………………… 7-1
7.2 Acronyms and Abbreviations …………………………………… 7-2
7.2.1 Acronyms …………………………………………………… 7-2
7.2.2 Service Parts ………………………………………………… 7-4
7.3 The Sample Pattern for the Test………………………………… 7-8
7.4 Selecting a location ……………………………………………… 7-9
Contents
chapter 6 System Diagram
chapter 7 Reference Information