Samsung SCX-8030ND SCX-8040ND Service Manual and Parts Catalog


Accurate, clear and concise text, combined with detailed illustrations, lists of error code, instruction and diagrams, guide you through procedure of repair, remediate, maintenance and adjustments your copier, printer or scanner.
Present service manual and parts catalog Samsung SCX-8030ND SCX-8040ND contain clear instructions and procedures on how to fix the problems occurring in your equipment.
The information contained in this repair manual is necessary for the repair, but also prevention, resulting in a longer life of your equipment.
Format of the manual: PDF, makes it easy to navigate, instant download and print. English language.
To see what contain, please read table of contents:

Content SERVICE MANUAL SAMSUNG SCX-8030ND, SCX-8040ND:
Chapter 1. PRECAUTIONS
1.1 Safety Warning
1.2 Caution for safety
1.3 ESD Precautions

Chapter 2. PRODUCT DESCRIPTION
2.1 Specifications
2.2 System configuration
2.3 Sensor location
2.4 Paper handlingsection
2.4.1 Overview
2.4.2 Components
2.4.3 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 formation
2.5.1 Printing process overview
2.5.2 Imaging unit
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 (OPC, DEVE, MP, REGI, DUPLEX)
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 Scannner system overview
2.9.2 Scanning System components
2.10 DADF system
2.10.1 DADF systme overview
2.10.2 Electric parts layout
2.10.3 Description of drive system operations
2.11 Printer Electronics confi guration
2.11.1 Video controller
2.11.2 OPE controller
2.11.3 Engine controller
2.11.4 Scan controller
2.11.5 DADF controller
2.11.6 Interface part
2.11.7 Connection part
2.11.8 SMPS board
2.11.9 HVPS board
2.11.10 Eraser PBA
2.11.11 DC Power PBA
2.11.12 Cassette Joint PBA
2.11.13 Side Joint PBA
2.11.14 Toner Connector PBA
2.11.15 CRUM PBA
2.11.16 Development Crum Interface PBA
2.11.17 Deve Crum Joint PBA
2.11.18 Toner Curm Joint PBA
2.11.19 Fuser PBA
2.11.20 Waste Sensor PBA
2.11.21 LED Panel PBA
2.11.22 Scan Joint PBA
2.11.23 CCDM PBA
2.11.24 Scan Cover Open Sensor PBA
2.11.25 DADF Length Sensor PBA
2.11.26 DADF Width Sensor PBA
2.11.27 DADF Mixed Sensor PBA
2.11.28 DADF LED Panel PBA
2.11.29 Exit LED Panel PBA
2.12 Heating cables

Chapter 3. REPLACEMENT PROCEDURE
3.1 General Disassembly Procedure Precautions
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
3.4 Scan unit
3.4.1 Scan glass
3.4.2 Scan main PBA
3.4.3 Lamp
3.4.4 Original size detection sensor
3.4.5 Joint PBA
3.4.6 Joint sub PBA
3.4.7 Fan
3.4.8 Pulley-belt
3.4.9 Scan motor and gear belt
3.4.10 Home sensor
3.4.11 Scanner heating cable
3.4.12 Align set
3.5 Fuser unit
3.6 Side Unit
3.6.1 Duplex sensors
3.7.2 Transfer sensors
3.7.3 MP unit
3.7 Electrical components
3.7.1 Engine controller
3.7.2 Hard Disk Drive (HDD)
3.7.3 Video controller
3.7.4 Joint PBA
3.7.5 Toner PBA
3.7.6 Toner motor
3.7.7 DC power PBA
3.7.8 HVPS PBA
3.7.9 Lift motor
3.7.10 SMPS PBA
3.7.11 SMPS FAN
3.7.12 Ozone Filter FAN
3.7.13 Side joint PBA
3.7.14 Eraser Lamp
3.7.15 Waste sensor PBA
3.7.16 Temperature sensor
3.8 Main drive unit
3.8.1 Main drive motor
3.8.2 Main drive clutch
3.9 Exit drive unit
3.10 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 (Laser Scanning Unit)
3.15 Frame Duct
3.16 DADF Unit
3.16.1 Width / Length sensor PBA
3.16.2 DADF Main PBA
3.16.3 DADF Motors
3.16.4 DADF cover open sensor
3.16.5 Pick-Up Guide Sensor PBA
3.16.6 DADF Solenoid
3.17 Exit Unit
3.18 Regi. Unit
3.19 Pick-Up Unit
3.20 Cassette Heating Cable

Chapter 4. TROUBLESHOOTING
4.1 Entering/Exiting Diagnostics Mode
4.2 Serive mode menu tree
4.2.1 Information tab
4.2.2 Maintenance counts tab
4.2.3 Diagnostics tab
4.2.4 Service Functions
4.3 Information
4.3.1 General
4.3.2 Supply status
4.3.3 Software version
4.3.4 Service Hours
4.3.5 Fault Log
4.3.5 Print reports
4.4 Maintenance Counts
4.4.1 Fault count
4.4.2 Jam count
4.4.3 Part replacement count
4.5 Diagnotics
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
4.5.5 ACS
4.5.6 Color Management
4.6 Sevice 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

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

Chapter 6. PREVENTIVE MAINTENANCE (PM)
6.1 PM Supplies
6.2. PM Procedures
6.2.1 Toner cartridge
6.2.2 Imaging unit
6.2.3 2nd Transfer roller
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
6.3.7 Cleaning the ADF glass

Chapter 7. TROUBLESHOOTING
7.1 Procedure of checking the symptoms
7.2 Error code and troubleshooting
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 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 copys
7.3.10 Uneven density in sub scan direction
7.3.11 Uneven density in main scan direction
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

Chapter 8. SYSTEM DIAGRAM
8.1 Engine 1
8.2 Engine 2
8.3 Main board & OPE
8.4 Scan & DADF
8.5 Bottle joint board & side joint board
8.6 DC control board
8.7 Cassette joint board & Drive joint board
8.8 Heater & Fuse

Chapter 9. SYSTEM RECOVERY
9.1 Entry Point
9.2 USB
9.3 Network
9.4 Confi rmation Page
9.5 Error Page
9.6 Progress Page
9.7 Error List
9.8 HDD Repair
9.9 HDD Failure

Chapter 10. REFERENCE INFORMATION
10.1 Tools for troubleshooting
10.2 Abbreviations

Parts Catalog

SCX8030ND SCX8040ND SCX 8030ND SCX 8040ND ND CLX FIN40S CLXFIN