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Dell 1815DN service manual Abnormal Image Printing and Defective Roller, Heat Roller

Models: 1815DN

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Alignment & Adjustments

6.8 Abnormal Image Printing and Defective Roller

If abnormal image prints periodically, check the parts shown below.

			2	6
		4	2
	3	4	1	7
				7
			5
1	OPC Drum		5	Transfer Roller
2	Charge Roller		6	Heat Roller
3	Supply Roller		7	Pressure Roller
4	Developing Roller

No	Roller	Abnormal image period	Kind of abnormal image
1	OPC Drum	75.5mm	White spot, Block spot

2	Charge Roller	37.7mm	Black spot

3	Supply Roller	44.9mm	Horizontal density band

4	Develop Roller	35.2mm	Horizontal density band

5	Transfer Roller	47.1mm	Black side contamination/transfer fault

6	Heat Roller	77.8mm	Black spot and fuser ghost

7	Pressure Roller	75.4mm	Black side contamination

Service Manual 6-21

Image 91

Dell 1815DN service manual Abnormal Image Printing and Defective Roller, Heat Roller

Contents

Dell 1815dn Page Safety Warning PrecautionsToxic material Electric Shock and Fire Safety PrecautionsAssembly / Disassembly Precautions Handling PrecautionsDisregarding this warning may cause bodily injury Be careful with the high temperature partWhen you move the printer Ensure the printer is installed safelySuper Capacitor or Lithium Battery Precautions ESD PrecautionsTool for Troubleshooting SPL Acronyms and Abbreviations1 A4 ISO 19752 Standard Pattern Sample Pattern for the TestThis test page is reproduced at 70% of the normal A4 size Product Overview Product SpecificationsRemarks Product General SpecificationsSdram Copy Items Dell Laser MFP 1815dn RemarksTelephone ITU-T G3 Face Down 150Sheets/20lb Face Up 1Sheet Whql MFP CPU Part System ConfigurationsModem Part FAX SectionModem SFX336 specification SSD Clkp Clkn Dibp Dibn LSD Signal Transition of DAA SolutionRing Sensitivity Line Interface PartOPE Pannel Section Scan PartPrinter Section Items Specification Remark PLL Main / Hpvc RTC Core VoltageSystem Outline Copier Section Telephone Section Hvps High Voltage Power SupplyOutput Voltage Fluctuation Method PWM Control 15%Line Regulation under AVG TBD Wh Smps Switching Mode Power SupplyRemark +5VFuser AC Power Control Transfer Ass’y Toner CartridgeLSU Laser Scanner Unit Fixing Part FuserDuty Cycle Feeding PartReleasing Plastic Latches General Precautions on DisassemblyWhenever servicing the machine, you must perform as follows Open the Cover Front CoverTake out the Cassette If necessary, remove the Toner CartridgeOpen the MP Tray Assy MP Tray AssyTake out the Duplex Unit Rear CoverFace Up Cover Fuser Assy Bracket Jam Holder Side Cover Left, Right Dimm Cover Pull up the Scanner Assy, as shown below Scanner AssyRemove the four screws securing the Scan Upper Lift the ADF Assy upward to remove itRemove the CCD Cable, as shown below Pull up the CCD Shaft and take out the Ccdm Remove the CCD Holder Remove the Open Cover, as shown below ADF AssyADF Motor Assy Remove the Keys from the OPE Cover OPE UnitRemove the Contact Rubber from the OPE Cover Shield Controller Assy Film Cable Drive Assy Duplex Drive Assy Shield Smps Assy Connection PCB Connectors are located, as shown belowFuser Drive Assy 16 Fan Pick Up Roller Assy Pull the Feed Roller from the Bushing Duplex Guide Housing With Feed RollerHvps Housing Cover Mid Front Middle Cover AssyMPF Housing Pull up the Feed Idle Shaft and the Bushs with Spring Feed Roller PartsRelease the E-Ring securing the Feed2 Gear and remove it Pull up the Feed1 Roller from the Bushing, as shown below Remove the Clutch Unit, as shown belowExit Roller Pick Up Gear Assy & SolenoidsTerminal PBA 26 LSUTransfer Roller Parts Paper path Alignment and AdjustmentsClearing Paper Jams If the document is jammed in the paper feed area Clearing Document JamsIf the document is jammed in the paper exit area Paper Feed Jam tray Clearing Jams in the Paper PathsOperator Panel Message Location of Jam Go to Bypass tray Jam Paper Feed Jam optional trayPull the tray 1 half Pull the paper straight up and out Paper Exit Jam Fuser Area JamAlignment & Adjustments Push the duplex unit to the printer Duplex JamDuplex Jam User ModeDell Laser MFP1815dn Paper Setting Copy Setup Fax SetupTo enter the Tech mode Tech ModeHow to Enter Tech Mode Setting-up System in Tech ModeMethod Data SetupRemote FAX Do not turn off the power while upgrading processLocal Machine Fprt rom fileMachine Test Select the Adjust Shading atProtocol List ReportTo enter the Engine Test mode Engine Test ModeTo enter the Engine Test Mode DiagnosticLaser Motor OnOff Detail DescriptionEngine Test ModeIdentify Sale Date Component Replacement Cycle Consumables and Replacement PartsHeat Roller Abnormal Image Printing and Defective RollerDisplay Meaning Suggested solutions Error MessagesToner Empty 2 JAM Paper Feeding ProblemsCheck and Cause Solution Wrong Print Position4 JAM 3 JAMPaper rolled in the fuser Multi-FeedingDefective ADF Paper rolled in the OPCDescription Printing Problems malfunctionDisplay Defective LCD OperationMotor breaks away from its place due to gear melting away Not functioning of the fuser gear due to melting awayPaper Empty Paper Empty without indicationCheck the insertion of the Door S/W Connect No Beep on when the Door is openError lamp is on even when the print Door is closed Door OpenDefective Motor operation No PowerReplace LSU Vertical Line Getting CurvedVertical Black Line and Band Printing Quality ProblemsVertical White Line Black/White Spot Horizontal Black BandDark Image or a Black Light ImageBackground Uneven DensityHvps board Life of developer is expired GhostAbove directions Stains on the front Blank Page Print out Stains on backNo Dial Tone Fax & Phone ProblemsDefective MF Dial Defective FAX Forward Defective FAX FORWARD/RECEIVEAnother machine receiving a FAX additionally Sent to Defective FAX ReceiveDial Telephone line FAX at another fax machineDefective Automatic Receiving To the FAX ModeDescription The automatic receiving function is not working White Copy Copy ProblemsBlack Copy Defective Image Quality Abnormal noiseDefective PC Scan Scanning ProblemsDefective Image Quality of PC Scan Open the Front Cover Toner Cartridge ServicePrecautions on Safe-keeping of Toner Cartridge Service for the Life of Toner CartridgeSigns and Measures at Poor toner cartridge Recycled product Fault Signs Cause & CheckWhite Black spot Never use usual alcoholFault Signs Cause & Check Solution Ghost & Image General Problems Network Problems TroubleshootingWindows Problems Macintosh ProblemsSyncThru Installation Problems Page8-5 Page8-2Page8-3 Page8-4Exploded MainViews Cover Assy Middle Cover Assy Front Cover Assy Rear Cover Assy Frame Assembly Fuser Drive Assy Assy Main DriveMP Assy ADF Assy Cover Platen Assy OPE Unit Scanner Assy Cassette Assy Fuser Assy UnitOptional DuplexParts ListModel Dell 1815dn Rear Cover Assy Fuser Drive Assy MP Assy Cover Platen Scanner Assy Fuser Assy BELT-TIMMING Block Diagram Connection Diagram Dell 1815dn recommended spare part list Modems, Accessories