Samsung SCX-8240NA, SCX-8230NA, Service Manual

Service Manual Samsung SCX-8240NA, SCX-8230NA;
This manual is in the PDF format and have detailed Diagrams, pictures and full procedures to diagnose and repair your Samsung copier.
You can print, zoom or read any diagram, picture or page from this Service Manual. Every chapter on this manual is fully detailed and contain all the  simulation codes, trouble codes, maintenance procedures, reset procedures, diagnose procedures of Samsung SCX-8240NA, SCX-8230NA photocopier. You can find easily everything what do you need.
To see what contain, please read table of contents:

1. PRECAUTIONS
1.1 Safety Warning
1.2 Caution for safety
1.3 ESD Precautions

2. PRODUCT DESCRIPTION
2.1 Specifications
2.2 System configuration
2.3 Sensor location
2.4 Paper handling section
2.4.1 Overview
2.4.2 Components
22.4.3 Functions
2.4.4 Paper tray
2.4.5 Pick up unit
2.4.6 Registration unit
2.4.7 MPF unit
2.5 Image creation
2.5.1 Printing process overview
2.5.2 Imaging unit
2.5.2.1 Imaging unit overview
2.5.2.2 Drum drive
2.5.2.3 Development
2.6 Fuser unit
2.6.1 Fuser unit overview
2.6.2 Fuser unit components
2.6.3 Fuser unit drive
2.6.4 Temperature control
2.7 Laser Scanning Unit
2.7.1 Laser Scanning Unit overview
2.7.2 Laser Scanning Optical path
2.7.3 Laser synchronizing detectors
2.8 Printer Drive system
2.8.1 Drive Motors
2.8.2 Main drive unit
2.8.3 Pick-up Drive
2.8.4 Fuser/Exit Drive
2.8.5 Toner Duct drive
2.8.6 Drive of Toner Supply
2.8.7 WTB leveling drive
2.8.8 PR Release drive
2.9 Scanner system
2.9.1 Scanner System overview
2.9.2 Scanning System components
2.10 DADF
2.10.1 DADF System overview
2.10.2 Electric parts layout
2.10.3 DADF Drive System
2.10.3.1 DADF Original Drive assembly
2.10.3.2 DADF Original registration drive assembly
2.10.3.3 DADF Original feed drive assembly
2.10.3.4 DADF Exit drive assembly
22.10.3.5 DADF Gate drive assembly
2.11 Hardware configuration
2.11.1 Main controller
2.11.1.1 MSOK
2.11.1.2 Fax-Joint PBA
2.11.1.3 Primary Modem Card
2.11.1.4 Secondary Modem Card
2.11.1.5 FDI
2.11.2 OPE Controller
2.11.2.1 Sub Key PBA
2.11.2.2 USB Hub Controller PBA
2.11.3 DADF Controller
2.11.4 Interface Part
2.11.5 Connection Part
2.11.6 SMPS 1
2.11.7 SMPS 2
2.11.8 FDB
2.11.9 HVPS
2.11.10 Eraser PBA
2.11.11 Side Joint PBA
2.11.12 Fuser PBA
2.11.13 Waste Sensor PBA
2.11.14 LED Panel PBA
2.11.15 Crum PBA
2.11.16 Deve Crum Joint PBA
2.11.17 Toner Crum Joint PBA
2.11.18 Scan Joint PBA
2.11.19 CCDM PBA
2.11.20 WLED CTL PBA
2.11.21 WLED AL Front PBA

3. REPLACEMENT PRODUCE
3.1 General precautions on disassembly
3.2 Cover
3.2.1 Front cover
3.2.2 Left cover
3.2.3 Rear cover
3.2.4 Right cover
3.3. OPE Unit
3.3.1 OPE assembly
3.3.2 OPE PBA and LCD panel
3.3.3 Key buttons
3.4 Scan unit
3.4.1 Scanner Assembly
3.4.2 Scan Glass
3.4.3 Lamp Assembly
3.4.4 Scanner Board
3.4.5 Scanner paper sensor
3.5 Fuser unit
3.5.1 Fuser cover
3.5.2 Draw connector
3.5.3 Halogen lamp
3.5.4 Heat roller
3.5.5 Pressure roller
3.6 Side Unit
3.6.1 Duplex sensor
3.6.2 Transfer sensor
3.6.3 MP unit
3.6.3.1 MP Solenoid
3.7 Electrical components
3.7.1 Main board
3.7.2 Storage (HDD)
3.7.3 Toner PBA, Toner Motor
3.7.4 Lift Motor
3.7.5 FDB
3.7.6 HVPS
3.7.7 SMPS
3.7.8 SMPS Fan
3.7.9 Ozone filter Fan
3.7.10. Side Joint PBA
3.7.11 Eraser Lamp
3.7.12. Waste Sensor PBA
3.7.16 Temperature sensor
3.7.16.1 Outer Temperature sensor
3.7.16.2 Inner Temperature sensor
3.8 Main Drive unit
3.8.1 Main Drive Motor
3.8.2 Main Drive Clutch
3.9 Exit Drive unit
3.8.1 Exit Drive Motor
3.10 Toner Duct Drive unit
3.11 PR Release Drive unit
3.12 Pick-up Drive unit
3.13 WTB Leveling Drive unit
3.14 LSU
3.15 Frame-Duct
3.16 DADF
3.16.1 DADF Cover
3.16.2 DADF Open Cover
3.16.3 DADF Stacker
3.16.4 DADF main board
3.16.5 DADF motor, solenoid, clutch
3.16.6 DADF Detect/ Cover/ Regi sensor
3.16.7 DADF Exit Idle sensor
3.16.8 DADF Exit sensor
3.16.9 DADF Length, Width sensor
3.17 Exit unit
3.18 Regi. unit
3.19 Pick-Up Unit
3.20 Cassette heating cable

4. SERVICE MODE
4.1 Entering/Exiting Service Mode
4 2 Service Mode Menu Tree
4.2.1 Information Tab
4.2.2 Maintenance Counts Tab
4.2.3 Diagnostics Tab Menu
4.2.4 Service Functions
4.3 Information
4.3.1 General
4.3.2 Supply Status
4.3.2.1 Customer Replacement Unit (CRU)
4.3.2.2 Field Replacement Unit (FRU)
4.3.3 Software Version
4.3.4 Service Hours
4.3.5 Fault Log
4.3.6 Print Report
4.4 Maintenance Counts
4.4.1 Fault Count
4.4.2 Jam Count
4.4.3 Part Replacement Count
4.5 Diagnostics
4.5.1 Engine Diagnostics
4.5.1.1 NVM Read/Write
4.5.1.2 Engine Test Routines
4.5.2 Fax Diagnostics
4.5.2.1 Fax NVM Read/Write
4.5.2.2 Fax Test Routines
4.5.3 Scanner Diagnostics
4.5.3.1 Shading Test
4.5.3.2 Scanner/DADF NVM Read/Write
4.5.3.3 Scanner/DADF Test Routines
4.5.4 Adjustment
4.5.4.1 Print Adjustment
4.5.4.2 Copy Adjustment
4.5.4.3 Scan Area Adjustment
4.5.4.4 DADF Adjustment
4.5.4.5 Finisher Adjustment
4.5.4.6 Buckle Adjustment
4.5.5 ACS
4.5.6 Color Management
4.5.6.1 Scan CTD
4.6 Service Functions
4.6.1 Main Memory Clear
4.6.2 Hard Disk Maintenance
4.6.3 Debug Log
4.6.4 Port
4.6.5 Capture Log
4.6.6 Toner Save
4.6.7 Count Setting of Large Page
4.6.8 System Recovery
4.6.9 User Data Management
4.6.10 TR Control Mode
4.6.11 Cool Down Mode

5. UPDATING FIRMWARE
5.1 Updating from the Printer Control Panel
5.2 Updating from the Network

6. PREVENTIVE MAINTENANCE
6.1 PM Supplies
6.1.1 PM Parts
6.1.2 PM KIT
6.2 PM Procedures
6.2.1 Toner cartridge
6.2.2 Imaging unit
6.2.3 Transfer roller Unit
6.2.4 Fuser unit
6.2.5 Pick up / Retard / Forward roller
6.2.6 Ozone filter
6.2.7 DADF Rollers (Pick up/ ADF/ Retard)
6.2.8 MP Pick up / Retard / Forward roller
6.2.9 Scanner Fan Filter
6.3 Cleaning the PM parts
6.3.1 Cleaning the charge scorotron
6.3.2 Cleaning the pick up roller
6.3.3 Cleaning the Regi roller
6.3.4 Cleaning the tray1 feed roller
6.3.5 Cleaning the tray2 feed roller
6.3.6 Cleaning the DADF retard rubber pad
6.3.7 Cleaning the DADF rollers
6.3.8 Cleaning the ADF glass

7. TROUBLESHOOTING
7.1 Procedure for checking symptoms
7.1.1 System power-up sequence
7.1.2 Pre-troubleshooting check list
7.2 Error code and Trobleshooting
7.2.1 Error code and error message
7.2.2 Error Code Details
7.3 Image quality problems and solutions
7.3.1 Vertical Lines
7.3.2 Horizontal Lines
7.3.3 White spot
7.3.4 Color or Black background
7.3.5 Blurred image
7.3.6 Uneven pitch and jitter image
7.3.7 Skewed image
7.3.8 Low image density
7.3.9 Blank copy , Black copy
7.3.10 Uneven density in sub scan direction (Horizontal band)
7.3.11 Uneven density in main scan direction (Vertical Band)
7.3.12 Poor fusing performance
7.3.13 Stain on the paper back side
7.3.14 DADF skew testing
7.4 Other errors
7.4.1 OPE problem
7.4.2 USB port problem
7.4.3 FDI device problem

8. SYSTEM DIAGRAM
8.1 Engine 1
8.2 Engine 2
8.3 Engine 3
8.4 Scan & DADF
8.5 Heater & Fuse

9. SYSTEM RECOVERY
9.1 Entry Point
9.2 USB
9.3 Network
9.4 Confirmation Page
9.5 Error Page
9.6 Progress Page
9.7 Error List
9.8 HDD Repair
9.9 HDD Failure
10. Reference Information
10.1 Tools for Troubleshooting
10.2 Abbreviations

Number of pages: 399.