DC Fan | Samsung SCX-4200 instruction

Disassembly and Reassembly

5.4 DC Fan

1.Before you remove the DC Fan, you should remove:

-Rear Cover (Refer to 5.3)

2.First release the harness from the Harness Holder and then remove the one screw securing the Harness Holder and remove it, as shown below.

Harness Holder

3. Pull the DC Fan out of the Rear Cover.

DC Fan

(24V, 80mA)

5-4Service Manual

Samsung Electronics

Image 61

Samsung SCX-4200 manual DC Fan

Contents

Digital Laser MFP Key Features Version no Contents Troubleshooting Disassembly and Reassembly Exploded Views & Parts List Block diagramConnection Diagram Schematic Diagram Safety Warning Precautions Toxic material Electric Shock and Fire Safety Precautions Assembly / Disassembly Precautions Handling Precautions When you move the printer Be careful with the high temperature partEnsure the printer is installed safely Disregarding this warning may cause bodily injury Super Capacitor or Lithium Battery Precautions ESD Precautions Product Overview Product Specification General Specifications Specifications Scan Specification Print Specification Copy Copy Specification Paper Handiling Specification Accessory Items Other Specification Front View System Outline Sensor Control Panel Scan Part System Layout Transfer Ass’y Paper Feed MechanismDrive Ass’y Fixing PartFuser Scanner Unit Safety Relevant FactsPressure roller Scan Image Controller LSU Laser Scanner Unit Toner Cartridge CPU Part H/W Structure and Descriptions Iptop Scan Part ConfigurationOpe Pannel Micom controller Asic Printer Section CPU Unit Chorus 2 Block Diagram Smps & Hvps Copier Part Hvps High Voltage Power Supply Remark Smps Switching Mode Power Supply Printing CH1+5V CH2+24V CH3+24VS System Fuser AC Power Control Architecture S/W Structure and Descriptions 2 S/W Overview Power on Initial ModuleEngine Print Processing Control Module Print Interface Module Paper Size Engine Unit Control ModulePaper Type Functional Requirements of Fixing Unit Fuser Handling Print ModeAccumulated Printing Pages Elapsed Printing Time Temperature in the Warm-Up mode 3.6Temperature in the Stand-By mode3.8Environmental Index LSU Ready Check Functional Requirements for LSU ControlSequence of LSU module Functional Requirements of Environment Recognition Air Temperature Sensor Environment RecognitionTransfer Roller Functional Requirements of Hvps Control Functional Requirements of Power Save Mode6.1 MHV 6.2 THV Functional Requirements of OPC Drum Functional Requirements of Toner CartridgeFunctional Requirements of Fan Operation Door Open Out Bin Tray Full Checking Paper jamPaper Jam Paper Jam1 Open Heat Error TemperatureLow Heat Error Over Heat Error LSU Error To enter the Engine Test Mode Engine Test ModeDiagnostic To enter the Engine Test mode Paper Path Paper Tray Clearing Paper Jams Paper Exit Area Manual Feeder Fuser Area or Around the Toner Cartridge Clearing the Memory Printing the System Data ListClearing the Drum LCD Status Display by Each Error Consumables and Replacement Parts Roller Defective image Typical defect Periodic Defective Image Display Meaning Suggested solutions Error Message Direct KEY ڌډڞڪګڴٻڟڤڭڠڞگٻڦڠڴ Releasing Plastic Latches General Precautions on DisassemblyWhenever servicing the machine, you must perform as follows Front Cover Rear Cove DC Fan Right Side Cover Left Side Cover Scanner Unit Remove the two screws securing the Scan Upper Unit Scan Motor Assy OPE Unit Middle Cover Unit Fuser Unwrap the Thermistor Harness, as shown below Exit Roller 12 LSU Drive Assy 13 Fan Main PBA Engine Shield Assy Smps Crum PCB Transfer Roller Feed Roller Remove the Feed Gear1 Assy, as shown below Pick Up Roller & Solenoid Disassembly and Reassembly Check and Cause Solution Printing Problems Causes and SolutionsVertical Black Lines and Bands Vertical White Line Black/White Spot Horizontal Black BandsDescription Digital Printer Dark Image or a Black Light Image Background Uneven Density Ghost Digital Printer Ghost Stains on the Face Blank Page Print out Stains on Back White Copy Copy ProblemsBlack Copy Defective Image Quality Abnormal noise Wrong Print Position Paper Feed problems Causes and Solutions2 JAM 4 JAM 3 JAM Paper rolled in the fuser Multi-Feeding Paper rolled on the OPC Drum Fuser Error Printer Faults Causes and SolutionsLSU Error Paper Empty Fuser gear melts due to overheating causing Paper Jam Cover Open Paper Empty without indication No error message when the cover is open Defective motor operation No Power Printed Vertical Lines become curved Precautions on Safe-keeping of Toner Cartridge Toner Cartridge ServiceService for the Life of Toner Cartridge Standard of guarantee for consumable parts Signs and Measures of Poor toner cartridge Fault Signs Cause & Check Solution Fault Signs Cause & Check Solution Ghost & Image Printer is not working Software Problems Causes and SolutionsAbnormal Printing How to delete the data in the spool manager Spool Error OPE 7Block Diagram 7.1 System Block Diagram Exploded Views and Parts List SCX-4200/XAX Main Exploded View Housing Base Exploded View 24 22 Fuser Unit Exploded View Drive Assembly Exploded View Scan Assembly Exploded View OPE Assembly Exploded View Cassette Assembly Exploded View Service Parts ListModel SCX-4200/XAX HOUSING-M-TERMINAL R2SCX-4920N,ABSNH-1 ROLLER-M-EXIT F/UPML-1710,PCGE EXL-911 SCREW-TAPTITEPWH,+,B,M3,L10,NI PLT,SWRC LABELP-NOMBOXCOMMON,XAX,ART,100G,0 CBF HARNESS-PTLML-1710,CBF,UL 1061,2P,2 LCD-DISPLAYXEVVHX1620BHRC9,SCX-5312F 9Connection 9.1 SCX-4200 Connection Diagram 10.1 Main Board1/7 Schematic Diagrams Main Board2/7 Main Board3/7 Main Board4/7 Main Board5/7 Main Board6/7 Main Board7/7 OPE Circuit Diagram SMPS-110V1/4 SMPS-110V2/4 SMPS-110V3/4 SMPS-110V4/4 SMPS-220V1/4 SMPS-220V2/4 SMPS-220V3/4 SMPS-220V4/4 Vacuum Cleaner Spring Hook Tool for TroubleshootingDriver Tweezers Acronyms and Abbreviations IPC Select a location for the printer 11.4 A4 ISO 19752 Standard Pattern