Smps | Samsung SCX-4200 manual

Disassembly and Reassembly

5.17 SMPS

1.Before you remove the SMPS, you should remove:

-Engine Shield Ass'y (Refer to 5.15)

2.Remove the two screws then take the Inlet Bracket out, as shown below.

Inlet Bracket

3.Unplug the Engine Harness from the SMPS and then remove the one screw securing the ground cable, as shown below.

Engine Harness

4. Remove the three screws and take the SMPS out.

SMPS

5-18Service Manual

Samsung Electronics

Image 75

Samsung SCX-4200 manual Smps

Contents

Digital Laser MFP Key Features Version no Contents Troubleshooting Disassembly and Reassembly Schematic Diagram Block diagramExploded Views & Parts List Connection Diagram Safety Warning Precautions Toxic material Electric Shock and Fire Safety Precautions Assembly / Disassembly Precautions Handling Precautions Disregarding this warning may cause bodily injury Be careful with the high temperature partWhen you move the printer Ensure the printer is installed safely 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 Fixing PartFuser Paper Feed MechanismTransfer Ass’y Drive Ass’y Scan Image Controller Safety Relevant FactsScanner Unit Pressure roller LSU Laser Scanner Unit Toner Cartridge CPU Part H/W Structure and Descriptions Iptop Micom controller ConfigurationScan Part Ope Pannel 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 Print Interface Module Power on Initial Module2 S/W Overview Engine Print Processing Control Module Engine Unit Control Module Paper SizePaper Type Elapsed Printing Time Print ModeFunctional Requirements of Fixing Unit Fuser Handling Accumulated Printing Pages 3.6Temperature in the Stand-By mode Temperature in the Warm-Up mode3.8Environmental Index Functional Requirements for LSU Control LSU Ready CheckSequence of LSU module Air Temperature Sensor Environment Recognition Functional Requirements of Environment RecognitionTransfer Roller 6.2 THV Functional Requirements of Power Save ModeFunctional Requirements of Hvps Control 6.1 MHV Door Open Functional Requirements of Toner CartridgeFunctional Requirements of OPC Drum Functional Requirements of Fan Operation Paper Jam1 Checking Paper jamOut Bin Tray Full Paper Jam Over Heat Error TemperatureOpen Heat Error Low Heat Error LSU Error To enter the Engine Test mode Engine Test ModeTo enter the Engine Test Mode Diagnostic Paper Path Paper Tray Clearing Paper Jams Paper Exit Area Manual Feeder Fuser Area or Around the Toner Cartridge Printing the System Data List Clearing the MemoryClearing 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 General Precautions on Disassembly Releasing Plastic LatchesWhenever 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 Vertical White Line Printing Problems Causes and SolutionsCheck and Cause Solution Vertical Black Lines and Bands Horizontal Black Bands Black/White SpotDescription 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 Copy Problems White CopyBlack Copy Defective Image Quality Abnormal noise Paper Feed problems Causes and Solutions Wrong Print Position2 JAM 4 JAM 3 JAM Paper rolled in the fuser Multi-Feeding Paper rolled on the OPC Drum Printer Faults Causes and Solutions Fuser ErrorLSU 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 Standard of guarantee for consumable parts Toner Cartridge ServicePrecautions on Safe-keeping of Toner Cartridge Service for the Life of Toner Cartridge Signs and Measures of Poor toner cartridge Fault Signs Cause & Check Solution Fault Signs Cause & Check Solution Ghost & Image Software Problems Causes and Solutions Printer is not workingAbnormal 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 Tweezers Tool for TroubleshootingVacuum Cleaner Spring Hook Driver Acronyms and Abbreviations IPC Select a location for the printer 11.4 A4 ISO 19752 Standard Pattern