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HP P2050 manual 109Remove the ECU 13

Models: P2050

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13.Pull the ECU down until the mounting bracket is below the sheet-metal tab. Figure 6-108Remove the ECU (12 of 14)

14.When the ECU is removed, you must carefully pass the FFC and wire harness through the holes in the chassis.

CAUTION: Do not bend or fold the flat flexible cables (FFCs) during removal or installation. Also, do not straighten pre-folds in the FFCs.

Figure 6-109Remove the ECU (13 of 14)

ENWW	Internal assemblies 169

Image 181

HP P2050 manual 109Remove the ECU 13

Contents

HP LaserJet P2050 and P2030 Series Printers Page Page Trademark Credits Copyright and License Table of contents Paper and print media Control panel Manage and maintain Theory of operation Removal and replacement Solve problems Enww Parts and diagrams Appendix B Specifications Appendix a Service and supportAppendix C Regulatory information 301 Product basics HP LaserJet P2050 Series Printers Product comparisonHP LaserJet P2055d printer HP LaserJet P2055dn printer CE457A CE459A CE460A HP LaserJet P2035 printer HP LaserJet P2030 Series PrintersCE461A CE462A Feature Description Product features Button, 6 LED control panel Front view Product walkaround Rear view Model and serial number label Interface ports HP LaserJet P2030 Series Printers Rear view 1HP LaserJet P2035 printer Model and serial-number label location Supported product software Software installation types for WindowsSoftware included with the product Macintosh software Other software provided HP Web JetadminSoftware for Windows Software for networks Software Software for other operating systems Windows requirements System minimum requirementsMacintosh requirements Connectivity Service name DescriptionSupported networks HP LaserJet P2050 Series Printers 2Network product discovery 4IP addressing Supported network HP LaserJet P2030 Series Printers 7Messaging and management 6Network product discovery8IP addressing Product basics Control panel Control-panel layout Control panel HP LaserJet P2050 Series Printers onlyNumber Button or light Function Use the menus Use the control-panel menus Menu item Description Reports menu Menu item Sub-menu item Description System setup menu Control panel Service menu Use this menu to establish network configuration settings WEB Go button and light Control panel HP LaserJet P2030 Series Printers only Paper and print media Supported paper and print media Size and dimensions Tray Optional 500-sheet DuplexerPaper for the HP LaserJet P2050 Series Printers Supported paper and print media sizes Supported paper and print media types Paper for the HP LaserJet P2030 Series Printers Tray or bin Paper type Specifications QuantityTray and bin capacity Recycled 2Supported paper and print media sizes Size and dimensions Tray Paper type printer driver Tray Tray and bin capacity Load trays Load paper and print mediaPaper orientation for loading trays Tray Load A6-size paper Optional Tray 3 HP LaserJet P2050 Series Printers only Manual feed Configure trays HP LaserJet P2050 Series Printers only Configure traysConfigure trays HP LaserJet P2030 Series Printers only Print to the top standard output bin Use paper output options Print to the straight-through paper path rear output Paper and print media Manage and maintain Demo Print the information pagesPrint the information pages Name of report Description Supplies Status Configuration View HP ToolboxFX Event log Status Set up E-mail Alerts Set up Status AlertsAlerts Help Device Information Device Settings Printing Paper HandlingPCL5c PostScript Shop for Supplies Network SettingsOther Links Enww Open the embedded Web server Manage a network productStatus tab Use security features Use HP Web Jetadmin software Supplies life Manage suppliesManage the print cartridge Enww Replace supplies and parts Supply replacement guidelinesRedistribute toner Change the print cartridge Enww Install product memory Install memory HP LaserJet P2050 Series Printers only Install memory HP LaserJet P2050 Series Printers only Enww Save resources permanent resources Check Dimm installation Click the Device Settings tab Enable memory for Windows Clean the print-cartridge area Clean the product Clean the paper path HP LaserJet P2030 Series Printers only Clean the paper path HP LaserJet P2050 Series Printers only Settings tab Clean the Tray 1 pickup roller Enww 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 diagram 2Cross-section of product Internal components Enww 1Sequence of operation TimingName Timing Purpose 3Engine control system Engine control system 4DC controller DC controller Swon Low-voltage power supply 6High-voltage power supply High-voltage power supply 7Laser/scanner system Laser/scanner system Laser failure detection Primary charging Image-formation system 10 Developing 11 Transfer 13 Fusing Pickup/feed/delivery system Pickup/feed/delivery system 16Jam detection Jam detection Enww Removal and replacement Electrostatic discharge Removal and replacement strategy 1Phillips and pozidrive screwdriver comparison Required tools After performing service Before performing service Print-quality test Post-service test Print cartridge 3Remove the Tray 2 cassette Tray 2 cassette Pickup roller Tray Rollers and pads Release two tabs 8Remove the pickup roller Tray 1 5 Removal and replacement 9Remove the pickup roller assembly Tray 2 1 Pickup roller assembly Tray Enww 13Remove the pickup roller Tray 2 5 14Remove the separation-pad assembly Tray 2 1 Separation-pad assembly Tray Transfer 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 doors Right 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 cover Carefully remove the cartridge-door assembly Reinstall the cartridge-door assembly and front cover Formatter PCA HP LaserJet P2030 Series Internal assemblies Internal assemblies Formatter PCA HP LaserJet P2050 Series Enww Paper-pickup-gear assembly 55Remove the paper-pickup-gear assembly 3 Reinstall the paper-pickup-gear assembly Enww 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 assembly 70Remove the power-switch assembly 3 71Remove the power-switch assembly 4 Removal and replacement 72Remove the connecting PCA 1 Connecting PCA Enww 75Remove the connecting PCA 4 76Remove the inlet-cable assembly 1 Removal and replacement Inlet-cable assembly 78Remove the inlet-cable assembly 3 Top cover assembly. See Top-cover assembly on Registration assembly 80Remove 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 replacement Enww 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 ECU Enww 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 assembly Enww Enww Remove the paper-retaining-delivery assembly Solve problems Troubleshooting checklist Solve general problems Factors that affect product performance 1Basic problem solving Basic problem solvingProblem Cause Solution Engine test page on Engine components Print a menu map Menu map HP LaserJet P2050 Series Printers only Pre-troubleshooting checklist Troubleshooting processGeneral topic Questions For 10 to 20 minutes Continuous self-test HP LaserJet P2050 Series only Tools for troubleshootingHalf self-test functional check Drum rotation functional check High-voltage contacts check Heating element checkChecking the print cartridge contacts 1High-voltage contact points on the print cartridge 2Left-side components Component locationsReference Component Description If disconnected or blocked FM1 3Right-side components Reference Component Description 4Connector PCA components 6Print cartridge components 5Rear-side componentsOutput bin appears Cartridge area appears Bin full appears 7Top components 8Tray 1 and Tray 2 components Repetitive image defect ruler Problem-solve diagrams9Repetitive defects Component Distance between defects Description When disconnected 10Engine controller connectorsEngine controller PCA Control-panel messageLoad paper appears Supply memory error appearsOpen door and clear jam appear 11Major components Major components 12 PCAs PCAs Timing chart ChartGeneral Circuit diagram Circuit diagram 14Control-panel light messages 13Status-light legendLight status State of the product Action Processing Data Manual Feed or Continuable Error Toner Low Jam Toner Missing Paper Mount Fuser error Supply memory errorScanner Error Alert message Description Recommended action Install black cartridge Engine communication errorDoor Open Jam in cartridge area Jam in Tray Jam in output bin Load paper Non-HP supply installedManual feed No paper pickup Control-panel messages Engine errorPrint failure Press OK Error 41.X.ErrorTurn off then on Turn off then on Laser/scanner assembly error XX Error 51.0000Fan error Device error Service errorGenuine HP supply installed Press OK Door open Specifications Load paper Cleaning mode OK to startLoad tray # Type Size Press OK for available media Manual duplex Load tray 1 Type SizeLoad tray Manual feed Type Size Used cartridge in use Used cartridge installedTo accept press OK Print the event log HP LaserJet P2050 Series Printers only Event-log messagesPrint an event log HP LaserJet P2030 Series Printers only Event log messages Solve problems Product is jammed.1 Cause Solution Paper-handling problemsJams Common causes of jams Clear jams Jam locationsInternal 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 Printed page is different from what appeared onscreen Solve image-quality problems16Printed page is different from what appeared onscreen Light print or faded Image defect examples Dropouts Toner specksVertical lines Gray background Loose toner Toner smearVertical repetitive defects Misformed characters Curl or wave SkewWrinkles or creases Toner scatter outline Print-quality problems associated with paper Solve print-quality problemsPrint-quality problems associated with the environment Print-quality problems associated with jams Solve performance problems Solve direct-connect problems Solve connectivity problemsSolve network problems Open the secondary service menu Service mode functionsSecondary service menu structure 17Secondary Service menu Restore defaults Engine resetsEngine test Nvram initialization HP LaserJet P2050 Series Printers only Solve problems Parts and diagrams Order parts, accessories, and supplies Part numbers Paper-handling accessoriesPrint cartridges Memory Product Model Voltage Description Part number Whole unit replacement 1Common fasteners ScrewsExample 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 doors Description Part number Qty 2External covers, panels, and doors HP LaserJet P2035 HP LaserJet P2055 3External covers, panels, and doors HP LaserJet P2055 Hplj 2050 Series only Internal components 1 4Internal components 1 4Internal components 2 Internal components 2 5Internal components 2 Hplj 2030 Series only Hplj 2050 Series only Internal components 3 6Internal components 3 6Internal components 4 Internal components 4 7Internal components 4 7Internal components 5 Internal components 5 8Internal components 5 9Alphabetical parts list Alphabetical parts list Internal components 1 Switch, push SW301 cartridge-door interlock WC4-5171-000CN 10Numerical parts list Numerical 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 Agreement End User License Agreement Customer self-repair warranty service Ljp2030series Customer support On-site service agreements HP maintenance agreementsNext-day on-site service Weekly volume on-site service Extended warranty Appendix a Service and support Specifications Electrical specifications Physical specificationsTable B-1Product dimensions and weights Table B-3Product dimensions and weights Operating environment Acoustic emissions Appendix B Specifications Regulatory information FCC regulations Declaration of conformity Declaration of conformityDeclaration of Conformity Laser safety Safety statementsCanadian DOC regulations Luokan 1 laserlaite Laser statement for Finland Substances Table China Cables Symbols/Numerics Dimm Macintosh See also solving PCL Enww Enww TCP/IP Enww Page CE457-90980* *CE457-90980