Samsung SCX-4100 specifications Feed Roller

Page 54

Disassembly and Reassembly

5.15 Feed Roller

1.Before you remove the Feed Roller you should remove:

-Rear Cover (see page 5-2)

-Side Covers (see page 5-3)

-Scanner Ass’y (see page 5-4)

-Middle Cover (see page 5-6)

-LSU (see page 5-9)

-Drive Ass’y (see page 5-10)

2.Remove 2 screws from the Guide Paper and take it out.

Guide

Paper

3.Pull up the Feed Idle Bush and Feed Idle Shaft, as shown below.

Feed Idle

Shaft

Bush

4. Remove 3 screws from the Feed Bracket and take it out.

Feed Bracket

5. Remove the Idle Gear and Feed Gear2.

Feed Gear2

Idle Gear

6. Remove the Feed Gear 1 Ass’y, as shown below.

Feed Gear1

Ass’y

Service Manual

Samsung Electronics

5-15

Image 54

Contents Troubleshooting PrecautionsSpecifications Block DiagramHttp//itself.sec.samsung.co.kr Precautions Safety WarningElectric Shock and Fire Safety Precautions Toxic materialHandling Precautions Assembly / Disassembly PrecautionsBe careful with the high temperature part Disregarding this warning may cause bodily injuryESD Precautions Tool for Troubleshooting Acronyms and Abbreviations IPC Select a location for the printer Sample Pattern for the Test 1 A4 5% Pattern2 A4 2% Pattern 3 A4 IDC 5% Patten Memo Specifications General SpecificationsPrint Specification Scan SpecificationCopy Specification CopyPaper Handiling Specification Other Specification WhqlMemo Printer Components Front ViewRear View Control Panel System Layout Drive Ass’y Paper Feed MechanismTransfer Ass’y Fixing PartFuserScan Image Controller Safety Relevant FactsScanner Unit CIS Driver CircuitLSU Laser Scanner Unit Toner Cartridge Main PBA Sdram Asic Chorus2Flash Memory Sensor input circuitCover Open Sensing Paper Feeding, Toner Cartridge SensingPaper Exit Sensing DC FAN / Solenoid DriverSmps & Hvps HVPSHigh Voltage Power Supply Consumption Power Smps Switching Mode Power SupplyRated Power Output Length of Power Cord 1830 ± 50mm Power Switch FittedEnvironment Condition Fuser AC Power ControlFeature Safty RequrementTransfer Engine F/WDrive FeedingFusing 5 LSUHeat Lamp Method Memo General Precautions on Disassembly Releasing Plastic LatchesWhenever servicing the machine, you must perform as follows Front and Rear Cover Units Side Covers Scanner Ass’y Remove Scanner Ass’yDismantle Scanner Ass’y Spring Pulley Idle ETC Belt Middle Cover FuserHeat Lamp Type Remove 4 screws and divide the Fuser into two parts Exit Roller LSUFan Engine Shield Ass’y Smps Transfer Roller Feed Roller Remove the Feed Roller and Feed Roller1, as shown below Pick Up Roller & Solenoid Memo Diagnostic Engine Test ModeTo enter the Engine Test Mode To enter the Engine Test modePaper Path Clearing Paper Jams Paper TrayPaper Exit Area Fuser Area or Around the Toner Cartridge Manual FeederPrinting the System Data List Clearing the MemoryClearing the Drum Consumables and Replacement Parts LCD Status Display by Each ErrorPeriodic Defective Image Roller Defective image Typical defectPrinting Problems Causes and Solutions Vertical Black Lines and BandsVertical White Line Horizontal Black Bands Black/White SpotLight Image Dark Image or a BlackUneven Density BackgroundGhost Stains on the Face Digital Printer GhostStains on Back Blank Page Print outCopy Problems White CopyBlack Copy Abnormal noise Defective Image QualityPaper Feed problems Causes and Solutions Wrong Print Position2 JAM 3 JAM 4 JAMMulti-Feeding Paper rolled in the fuserPaper rolled on the OPC Drum Printer Faults Causes and Solutions Fuser ErrorLSU Error Fuser gear melts due to overheating causing Paper Jam Paper EmptyPaper Empty without indication Cover OpenNo error message when the cover is open No Power Defective motor operationPrinted Vertical Lines become curved Service for the Life of Toner Cartridge Toner Cartridge ServicePrecautions on Safe-keeping of Toner Cartridge Standard of guarantee for consumable partsSigns and Measures of Poor toner cartridge EndedFault Signs Cause & Check Solution Fault Signs Cause & Check Solution Ghost & Image Software Problems Causes and Solutions Printer is not workingNot working with the message insufficient printer Abnormal Printing Spool Error How to delete the data in the spool managerMemo Exploded Views and Parts List Main Assembly Main Assembly Parts List Frame Assembly Frame Unit Assembly Parts List Description SEC.Code ’ty RemarkFrame Unit Assembly Parts ListCont Scanner Unit Assembly Scanner Unit Assembly Parts List Fuser Unit Assembly Fuser Unit Assembly Parts List WASHER-PLAIN Middle Cover Unit Assembly Middle Cover Unit Assembly Parts List ’ty RemarkDrive Unit Assembly Drive Unit Assembly Parts ListCassette Unit Assembly Cassette Unit Assembly Parts List Block Diagram 10.10Connection Diagram

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