Manuals / HP / Computer Equipment / Printer

HP P2050 manual 6High-voltage power supply

Models: P2050

1 322

Download 322 pages 19.97 Kb

Page 99

High-voltage power supply

Figure 5-6High-voltage power supply

Engine controller

DC controller High-voltage power supply

		Fuser
		Fusing film
		Pressure roller
Primary	FB	Cartridge
	FB

charging	PR	Primary charging roller
bias circuit		Primary charging roller
bias circuit
		Developing roller
Developing	DV
bias circuit		Photosensitive drum
		Transfer roller
Transfer	TR
bias circuit

ENWW	Engine control system 87

Image 99

HP P2050 manual 6High-voltage power supply

Contents

HP LaserJet P2050 and P2030 Series Printers Page Page Trademark Credits Copyright and LicenseTable of contents Paper and print media Control panelManage and maintain Theory of operation Removal and replacementSolve problems Enww Parts and diagrams 301 Appendix a Service and supportAppendix B Specifications Appendix C Regulatory informationProduct basics CE457A CE459A CE460A Product comparisonHP LaserJet P2050 Series Printers HP LaserJet P2055d printer HP LaserJet P2055dn printerHP LaserJet P2030 Series Printers HP LaserJet P2035 printerCE461A CE462A Feature Description Product featuresButton, 6 LED control panel Front view Product walkaroundRear view Model and serial number label Interface portsHP LaserJet P2030 Series Printers Rear view 1HP LaserJet P2035 printer Model and serial-number label location Macintosh software Software installation types for WindowsSupported product software Software included with the productSoftware for networks HP Web JetadminOther software provided Software for WindowsSoftware Software for other operating systemsSystem minimum requirements Windows requirementsMacintosh requirements 2Network product discovery Service name DescriptionConnectivity Supported networks HP LaserJet P2050 Series Printers4IP addressing Supported network HP LaserJet P2030 Series Printers6Network product discovery 7Messaging and management8IP addressing Product basics Control panel Control panel HP LaserJet P2050 Series Printers only Control-panel layoutNumber Button or light Function Use the menus Use the control-panel menusMenu item Description Reports menuMenu item Sub-menu item Description System setup menuControl panel Service menu Use this menu to establish network configuration settings WEB Go button and light Control panel HP LaserJet P2030 Series Printers onlyPaper and print media Supported paper and print media sizes Size and dimensions Tray Optional 500-sheet DuplexerSupported paper and print media Paper for the HP LaserJet P2050 Series PrintersSupported paper and print media types Recycled Tray or bin Paper type Specifications QuantityPaper for the HP LaserJet P2030 Series Printers Tray and bin capacity2Supported paper and print media sizes Size and dimensions TrayPaper type printer driver Tray Tray and bin capacity Load paper and print media Load traysPaper orientation for loading trays Tray Load A6-size paper Optional Tray 3 HP LaserJet P2050 Series Printers only Manual feed Configure trays Configure trays HP LaserJet P2050 Series Printers onlyConfigure trays HP LaserJet P2030 Series Printers only Print to the top standard output bin Use paper output optionsPrint to the straight-through paper path rear output Paper and print media Manage and maintain Name of report Description Print the information pagesDemo Print the information pagesSupplies Status ConfigurationView HP ToolboxFX Event log StatusHelp Set up Status AlertsSet up E-mail Alerts AlertsDevice Information Device SettingsPostScript Paper HandlingPrinting PCL5cNetwork Settings Shop for SuppliesOther Links Enww Manage a network product Open the embedded Web serverStatus tab Use security features Use HP Web Jetadmin softwareManage supplies Supplies lifeManage the print cartridge Enww Supply replacement guidelines Replace supplies and partsRedistribute toner Change the print cartridge Enww Install product memory Install memory HP LaserJet P2050 Series Printers onlyInstall memory HP LaserJet P2050 Series Printers only Enww Save resources permanent resources Check Dimm installationClick the Device Settings tab Enable memory for WindowsClean the print-cartridge area Clean the productClean the paper path HP LaserJet P2030 Series Printers only Clean the paper path HP LaserJet P2050 Series Printers onlySettings tab Clean the Tray 1 pickup rollerEnww Enww Enww Clean the Tray 2 pickup roller Enww Reconnect the power cord, and turn the product on Manage and maintain Theory of operation Introduction 1Block diagram2Cross-section of product Internal componentsEnww Timing 1Sequence of operationName Timing Purpose 3Engine control system Engine control system4DC controller DC controllerSwon Low-voltage power supply6High-voltage power supply High-voltage power supply7Laser/scanner system Laser/scanner systemLaser failure detection Primary charging Image-formation system10 Developing 11 Transfer 13 Fusing Pickup/feed/delivery system Pickup/feed/delivery system16Jam detection Jam detectionEnww Removal and replacement Electrostatic discharge Removal and replacement strategy1Phillips and pozidrive screwdriver comparison Required toolsAfter performing service Before performing servicePrint-quality test Post-service testPrint cartridge 3Remove the Tray 2 cassette Tray 2 cassettePickup roller Tray Rollers and padsRelease two tabs 8Remove the pickup roller Tray 1 5 Removal and replacement 9Remove the pickup roller assembly Tray 2 1 Pickup roller assembly TrayEnww 13Remove the pickup roller Tray 2 5 14Remove the separation-pad assembly Tray 2 1 Separation-pad assembly TrayTransfer roller 19Remove the transfer roller 4 Removal and replacement 20Remove the transfer roller 5 Dimm door HP LaserJet P2050 Series only External panels, covers, and doorsRight cover 26Remove the right cover 4 Removal and replacement Reinstall the right cover Left cover Enww Rear cover, rear door, and duplex-paper-feed assembly Remove five screws callout Enww Enww Top-cover assembly Enww Remove three screws callout 44Remove the cartridge door assembly and front cover 2 Cartridge-door assembly and front coverCarefully remove the cartridge-door assembly Reinstall the cartridge-door assembly and front cover Formatter PCA HP LaserJet P2030 Series Internal assembliesInternal assemblies Formatter PCA HP LaserJet P2050 Series Enww Paper-pickup-gear assembly 55Remove the paper-pickup-gear assembly 3 Reinstall the paper-pickup-gear assemblyEnww Cartridge-door switch Tray 1 pickup solenoid Enww Fan 65Remove the fan 3 Reverse-sensor assembly HP LaserJet P2050 Series Remove the reverse-sensor assembly 68Remove the power-switch assembly 1 Removal and replacement Power-switch assembly70Remove the power-switch assembly 3 71Remove the power-switch assembly 4 Removal and replacement 72Remove the connecting PCA 1 Connecting PCAEnww 75Remove the connecting PCA 4 76Remove the inlet-cable assembly 1 Removal and replacement Inlet-cable assembly78Remove the inlet-cable assembly 3 Top cover assembly. See Top-cover assembly on Registration assembly80Remove the registration assembly 2 Remove the guide Enww 85Remove the registration assembly 7 Laser/scanner assembly 87Remove the laser/scanner assembly 2 Fuser 88Remove the fuser 1 Removal and replacementEnww Enww 94Remove the fuser 7 Reinstall the fuser Engine controller unit ECU Enww 101Remove the ECU 5 Enww Enww 107Remove the ECU 11 Removal and replacement 109Remove the ECU 13 111Reinstall the fuser 1 Removal and replacement Reinstall the ECUEnww Paper-feed-guide assembly 114Remove the paper-feed-guide assembly 2 Main motor 117Remove the main motor 3 118Remove the main motor 4 Face-down-drive or duplexing-paper-feed assembly Remove the fan duct Remove the face-down-drive or duplexing-paper-feed assembly Duplex solenoid HP LaserJet P2050 Series 125Remove the paper-retaining-delivery assembly 1 Paper-retaining-delivery assemblyEnww Enww Remove the paper-retaining-delivery assembly Solve problems Troubleshooting checklist Solve general problemsFactors that affect product performance Basic problem solving 1Basic problem solvingProblem Cause Solution Engine test page on Engine componentsPrint a menu map Menu map HP LaserJet P2050 Series Printers onlyTroubleshooting process Pre-troubleshooting checklistGeneral topic Questions For 10 to 20 minutes Drum rotation functional check Tools for troubleshootingContinuous self-test HP LaserJet P2050 Series only Half self-test functional checkHeating element check High-voltage contacts checkChecking the print cartridge contacts 1High-voltage contact points on the print cartridge Component locations 2Left-side componentsReference Component Description If disconnected or blocked FM1 3Right-side componentsReference Component Description 4Connector PCA componentsCartridge area appears 5Rear-side components6Print cartridge components Output bin appearsBin full appears 7Top components8Tray 1 and Tray 2 components Component Distance between defects Problem-solve diagramsRepetitive image defect ruler 9Repetitive defects10Engine controller connectors Description When disconnectedEngine controller PCA Supply memory error appears Control-panel messageLoad paper appearsOpen door and clear jam appear 11Major components Major components12 PCAs PCAsChart Timing chartGeneral Circuit diagram Circuit diagram13Status-light legend 14Control-panel light messagesLight status State of the product Action Processing Data Manual Feed or Continuable Error Toner Low Jam Toner MissingPaper Mount Alert message Description Recommended action Supply memory errorFuser error Scanner ErrorJam in cartridge area Engine communication errorInstall black cartridge Door OpenJam in Tray Jam in output binNo paper pickup Non-HP supply installedLoad paper Manual feedPress OK Engine errorControl-panel messages Print failure41.X.Error ErrorTurn off then on XX Error 51.0000 Turn off then on Laser/scanner assembly errorFan error Press OK Door open Service errorDevice error Genuine HP supply installedSpecifications Press OK for available media Cleaning mode OK to startLoad paper Load tray # Type SizeManual feed Type Size Load tray 1 Type SizeManual duplex Load trayUsed cartridge installed Used cartridge in useTo accept press OK Event log messages Event-log messagesPrint the event log HP LaserJet P2050 Series Printers only Print an event log HP LaserJet P2030 Series Printers onlySolve problems Common causes of jams Paper-handling problemsProduct is jammed.1 Cause Solution JamsJam locations Clear jamsInternal areas Print-cartridge area and paper path Enww Duplex paper path HP LaserJet P2050 Series Printers only Enww Enww Input trays Tray Tray Enww Tray 3 HP LaserJet P2050 Series Printers only Output bins Enww Solve image-quality problems Printed page is different from what appeared onscreen16Printed page is different from what appeared onscreen Light print or faded Image defect examplesGray background Toner specksDropouts Vertical linesMisformed characters Toner smearLoose toner Vertical repetitive defectsSkew Curl or waveWrinkles or creases Toner scatter outline Print-quality problems associated with jams Solve print-quality problemsPrint-quality problems associated with paper Print-quality problems associated with the environmentSolve performance problems Solve connectivity problems Solve direct-connect problemsSolve network problems 17Secondary Service menu Service mode functionsOpen the secondary service menu Secondary service menu structureNvram initialization HP LaserJet P2050 Series Printers only Engine resetsRestore defaults Engine testSolve problems Parts and diagrams Order parts, accessories, and supplies Memory Paper-handling accessoriesPart numbers Print cartridgesProduct Model Voltage Description Part number Whole unit replacementScrews 1Common fastenersExample Description Size Part Number How to use the parts lists and diagrams How to use the parts lists and diagrams HP LaserJet P2035 External covers, panels, and doorsDescription Part number Qty 2External covers, panels, and doors HP LaserJet P2035HP LaserJet P2055 3External covers, panels, and doors HP LaserJet P2055 Hplj 2050 Series only Internal components 14Internal components 1 4Internal components 2 Internal components 25Internal components 2 Hplj 2030 Series only Hplj 2050 Series only Internal components 36Internal components 3 6Internal components 4 Internal components 47Internal components 4 7Internal components 5 Internal components 58Internal components 5 9Alphabetical parts list Alphabetical parts listInternal components 1 Switch, push SW301 cartridge-door interlock WC4-5171-000CN Numerical parts list 10Numerical parts listPart number Description External covers, panels, and doors HP LaserJet P2035 on RM1-6445-000CN Reverse-sensor assembly HP LaserJet P2055 Parts and diagrams Service and support Hewlett-Packard limited warranty statement Print cartridge limited warranty statement Transfer End User License AgreementEnd User License Agreement Customer self-repair warranty service Ljp2030series Customer supportWeekly volume on-site service HP maintenance agreementsOn-site service agreements Next-day on-site serviceExtended warranty Appendix a Service and support Specifications Table B-3Product dimensions and weights Physical specificationsElectrical specifications Table B-1Product dimensions and weightsOperating environment Acoustic emissionsAppendix B Specifications Regulatory information FCC regulations Declaration of conformity Declaration of conformityDeclaration of Conformity Safety statements Laser safetyCanadian DOC regulations Luokan 1 laserlaite Laser statement for FinlandSubstances Table China Cables Symbols/NumericsDimm Macintosh See also solvingPCL Enww Enww TCP/IP Enww Page CE457-90980* *CE457-90980