Middle Cover Assy, Cover Mid Front | Dell 1815DN guide

Precautions

5.20 Middle Cover Ass'y

1.Before you remove the Middle Cover Ass'y, you should remove:

-Rear Cover (Refer to 5.4)

-Side Cover (Left, Right) (Refer to 5.6)

-Scanner Ass'y (Refer to 5.7)

-Shield Controller Ass'y (Refer to 5.10)

2.Remove the six screws securing the Middle Cover Ass'y and remove it.

Middle Cover Ass'y

3.If necessary, remove the two screws securing the USB Host PBA and remove it.

Harness

USB Host PBA

5.21 Cover Mid Front

1.Before you remove the Cover Mid Front, you should remove:

- Middle Cover Ass'y (Refer to 5.20)

2.Remove the four screws securing the Cover Mid Front and release two hooks in the center. This cover is fragile take care when removing it.

Hook
Hook
Cover Mid Front
Service Manual	5-29
	5-29

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Dell 1815DN service manual Middle Cover Assy, Cover Mid Front

Contents

Dell 1815dn Page Precautions Safety Warning Electric Shock and Fire Safety Precautions Toxic material Handling Precautions Assembly / Disassembly Precautions Be careful with the high temperature part When you move the printerEnsure the printer is installed safely Disregarding this warning may cause bodily injury ESD Precautions Super Capacitor or Lithium Battery Precautions Tool for Troubleshooting Acronyms and Abbreviations SPL 1 A4 ISO 19752 Standard Pattern Sample Pattern for the TestThis test page is reproduced at 70% of the normal A4 size Product Specifications Product Overview Product General Specifications Remarks Sdram Items Dell Laser MFP 1815dn Remarks Copy Telephone ITU-T G3 Face Down 150Sheets/20lb Face Up 1Sheet Whql MFP System Configurations CPU Part FAX Section Modem Part Modem SFX336 specification Signal Transition of DAA Solution SSD Clkp Clkn Dibp Dibn LSD Line Interface Part Ring Sensitivity Scan Part OPE Pannel Section Printer Section Items Specification Remark RTC Core Voltage PLL Main / Hpvc System Outline Copier Section Hvps High Voltage Power Supply Telephone Section Output Voltage Fluctuation Method PWM Control 15%Line Regulation under Smps Switching Mode Power Supply Remark+5V AVG TBD Wh Fuser AC Power Control Toner Cartridge LSU Laser Scanner UnitFixing Part Fuser Transfer Ass’y Feeding Part Duty Cycle Releasing Plastic Latches General Precautions on DisassemblyWhenever servicing the machine, you must perform as follows Front Cover Take out the CassetteIf necessary, remove the Toner Cartridge Open the Cover MP Tray Assy Open the MP Tray Assy Rear Cover Take out the Duplex Unit Face Up Cover Fuser Assy Bracket Jam Holder Side Cover Left, Right Dimm Cover Scanner Assy Pull up the Scanner Assy, as shown below Remove 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 ADF Assy Remove the Open Cover, as shown below ADF 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 Connectors are located, as shown below Connection PCB Fuser Drive Assy 16 Fan Pick Up Roller Assy Duplex Guide Housing With Feed Roller Pull the Feed Roller from the Bushing Hvps Housing Middle Cover Assy Cover Mid Front MPF 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 Remove the Clutch Unit, as shown below Pull up the Feed1 Roller from the Bushing, as shown below Pick Up Gear Assy & Solenoids Exit Roller 26 LSU Terminal PBA Transfer Roller Parts Alignment and Adjustments Paper path Clearing Paper Jams Clearing Document Jams If the document is jammed in the paper feed area If 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 Fuser Area Jam Paper Exit Jam Alignment & Adjustments Duplex Jam Push the duplex unit to the printer Duplex Jam Paper Setting Copy Setup Fax Setup User ModeDell Laser MFP1815dn Tech Mode How to Enter Tech ModeSetting-up System in Tech Mode To enter the Tech mode Data Setup Method Do not turn off the power while upgrading process Local MachineFprt rom file Remote FAX Select the Adjust Shading at Machine Test Report Protocol List Engine Test Mode To enter the Engine Test ModeDiagnostic To enter the Engine Test mode Detail DescriptionEngine Test Mode Laser Motor OnOff Identify Sale Date Consumables and Replacement Parts Component Replacement Cycle Abnormal Image Printing and Defective Roller Heat Roller Error Messages Display Meaning Suggested solutions Toner Empty Paper Feeding Problems Check and Cause SolutionWrong Print Position 2 JAM 3 JAM 4 JAM Multi-Feeding Paper rolled in the fuser Paper rolled in the OPC Defective ADF Printing Problems malfunction DisplayDefective LCD Operation Description Not functioning of the fuser gear due to melting away Paper EmptyPaper Empty without indication Motor breaks away from its place due to gear melting away No Beep on when the Door is open Error lamp is on even when the print Door is closedDoor Open Check the insertion of the Door S/W Connect No Power Defective Motor operation Vertical Line Getting Curved Replace LSU Vertical Black Line and Band Printing Quality ProblemsVertical White Line Horizontal Black Band Black/White Spot Light Image Dark Image or a Black Uneven Density Background Hvps board Life of developer is expired GhostAbove directions Stains on the front Stains on back Blank Page Print out No Dial Tone Fax & Phone ProblemsDefective MF Dial Defective FAX FORWARD/RECEIVE Defective FAX Forward Defective FAX Receive Dial Telephone lineFAX at another fax machine Another machine receiving a FAX additionally Sent to Defective Automatic Receiving To the FAX ModeDescription The automatic receiving function is not working White Copy Copy ProblemsBlack Copy Abnormal noise Defective Image Quality Defective PC Scan Scanning ProblemsDefective Image Quality of PC Scan Toner Cartridge Service Precautions on Safe-keeping of Toner CartridgeService for the Life of Toner Cartridge Open the Front Cover Signs and Measures at Poor toner cartridge Fault Signs Cause & Check White Black spotNever use usual alcohol Recycled product Fault Signs Cause & Check Solution Ghost & Image Network Problems Troubleshooting General Problems Macintosh Problems Windows Problems SyncThru Installation Problems Page8-2 Page8-3Page8-4 Page8-5 Exploded MainViews Cover Assy Middle Cover Assy Front Cover Assy Rear Cover Assy Frame Assembly Fuser Drive Assy Main Drive Assy MP Assy ADF Assy Cover Platen Assy OPE Unit Scanner Assy Cassette Assy Fuser Assy Duplex UnitOptional Parts 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