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HP 400 manual

Models: 400

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HP LaserJet Pro 300 color MFP M375 and HP LaserJet Pro 400 color MFP M475 Printers

Service Manual

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HP 400 manual

Contents

M375 M475 Page Page Trademark Credits Copyright and LicenseConventions used in this guide Conventions used in this guide Table of contents Enww Solve problems 111 135 Load Tray 1 Type SIZE, Press OK to use available media Enww Enww 218 Parts and diagrams 245 279 289291 Enww Index 313 List of tables Xviii List of figures 35 Remove the rear door simplex product 1 74 Reinstall the left cover 1 137 Remove the fuser 1 101 Rollers 124 Xxiv Removal and replacement Removal and replacement strategy Removal and replacement strategyIntroduction Required tools Electrostatic dischargeTypes of screws Common fastenersDescription Size Part Number Service approach Before performing serviceAfter performing service Test 3 fax-quality test fax models only Post-service testsTest 1 print-quality test Test 2 copy-quality test2Parts removal order 1 Parts removal order3Parts removal order 2 Removal and replacement Removal and replacement procedures Rollers and padsTransfer roller Pickup roller Tray 2 and Tray 4Remove the pickup roller 1 5Remove the pickup roller 2 Removal and replacement 6Remove the pickup roller 1 Separation roller Trays 2 orEnww 9Reinstall the separation roller Reinstall the separation rollerDocument feeder pickup roller assembly Pickup roller and separation pad Tray 13Remove the Tray 1 pickup roller 2 Removal and replacement 15Remove the Tray 1 separation pad Print-cartridge drawer Main assembliesEnww Dimm cover Right cover 22Remove the right cover 3 Removal and replacement 24Remove the document feeder input tray 2 Document feeder input tray25Remove the scanner assembly 1 Remove four screws callout Scanner assemblyEnww Right-front cover and power button Enww Rear-upper cover duplex product 30Remove the rear-upper cover 2 Removal and replacement32Remove the feed assembly 2 Paper-feed guide assemblyRear-door stopper and link caps simplex product 36Remove the rear door simplex product 2 Rear door simplex productEnww 40Remove the rear door duplex product 2 Rear door duplex productEnww Rear cover and feed guide simplex product Before proceeding, remove the following componentsRemove the rear cover and feed guide simplex product Remove three screws callout Enww Enww Rear-lower cover and rear-door links duplex product Enww Enww Enww Remove the rear-door rib assembly duplex product Rear-door rib assembly duplex productEnww 58Replace the link guide simplex products Link guideControl panel and right-arm mount 63Reinstall the control panel and right-arm mount 1 Reinstall the control panel and right-arm mountEnww Remove the upper-cover assembly Upper-cover assemblyEnww 69Reinstall the upper-cover assembly 2 Reinstall the upper-cover assemblyEnww Remove the left cover Left cover73Remove the left cover 3 Removal and replacement 75Reinstall the left cover 2 Reinstall the left coverRemove the front-door assembly Front-door assembly78Remove the front-door assembly 3 Enww Enww Push the black-plastic arm into the product Reinstall the front-door assembly 85Remove the front-door assembly 10Enww 89Remove the ITB 2 Intermediate transfer belt ITB91Remove the ITB 4 Removal and replacement 93Remove the ITB 6 Reinstall the ITB Diagnostics95Remove motor M1 and motor M2 1 Drum motor M1 and developer motor M296Remove motor M1 and motor M2 2 Removal and replacement 97Remove motor M1 and motor M2 3 Release one tab callout 100Remove motor M1 and motor M2 6 Reinstall the drum motor M1 and developer motor M2 Intermediate PCA Formatter PCA and fax PCA Replacing the formatter PCA before the DC controller PCARemove the formatter PCA and fax PCA 104Remove the formatter 1 of 4 base model 106Remove the formatter 3 of 4 base model 108Remove the wirelss PCA 1 Remove the wireless PCA callout Wireless PCADC controller PCA Replacing the DC controller PCA before the formatter PCABefore you proceed, remove the following components 110Remove the DC controller PCA 1 Remove the DC controller PCAEnww Remove the fuser-motor assembly Fuser-motor assemblyEnww Enww Reinstall the fuser-motor assembly 117Remove the fuser-motor assembly 6Remove the high-voltage power-supply PCA High-voltage power-supply PCAEnww Enww Remove the color-misregistration sensor assembly Color-misregistration sensor assembly126Remove the color-misregistration sensor assembly PCA 3 Reinstall the color-misregistration sensor assembly 127Remove the color-misregistration sensor assembly PCA 4Enww Fan FM1 131Remove the fan FM1 2 Remove the USB PCA USB PCA fax/memory-card modelsRemove the duplex-reverse drive assembly Duplex-reverse drive assemblyRelease the wire harnesses from the retainer callout 136Remove the duplex-reverse drive assembly 4 Fuser 137Remove the fuser 1 Remove the fuserEnww 141Remove the fuser 5 142Remove the fuser 6 144Remove the fuser 8 145Reinstall the fuser Removal and replacement Reinstall the fuserRemove the paper-delivery assembly Paper-delivery assemblyEnww 149Remove the paper-delivery assembly 4 Tray cassettes and optional Tray 3 assembly Solve problems Solve problems checklist Print a menu map Menu mapTroubleshooting process Pretroubleshooting checklistGeneral topic Questions Power-on checks Troubleshooting tools Component diagnosticsLED diagnostics Test the control-panel buttons Component testsControl-panel tests Test the control-panel displayPlug/jack locations DiagramsLocation of connectors Connector BoardDC controller PCA Enww Location of major components Major components1Major components Enww 2Solenoid, sensors, and motors Motors and fansItem Description RollersPCAs PCAs5Optional 250-sheet cassette Optional 250-sheet cassetteGeneral timing diagram General circuit diagram 129 Asic diagram HVT / Toneremp Driver PCA1-1 Environment Sensor FSR diagram DiagramInternal print quality test pages Print quality troubleshootingPrint the Configuration ServicePrint the cleaning Print-quality troubleshooting toolsClean the paper path Print the ServiceCalibrate the product from the control panel Setup MenuControl panel menus Calibrate the productMenu item Description HP Web Services menuReports menu Menu item Sub-menu item Description Quick Forms menuMenu item Sub-menu item Description Fax Setup menuMenu item Sub-menu item Private Receive Off System Setup menu Bottom on Adjust Tray X1 ShiftUse the Y Shift setting to center the image from top to Side on the first side of a two-sidedUSB Flash Drive Disable FaxOff Supply Settings Black Cartridge Very Low Setting Prompt Product SecurityYellow Color Cartridges Very Low Setting StopPrint Black Low Threshold Cyan Enter percentage MagentaDark Color Copy Store Usage Data On SupplyNot on Supply Courier Font RegularService menu Restore Defaults HP SmartInstall Off Network Setup menu ID Copy Function specific menusCopy menu Sets the product so that it communicates only with WebSpecifies the paper size and type Fax menu Jobs Displays pending fax jobs,Scan menu Opens the Fax Setup menuControl panel messages 10.100X Supply Memory ErrorInterpret control panel messages Control panel message typesError, Turn off then on Fuser ErrorScanner Error Fan Error, Turn off then on Error Turn off then onBlack Cartridge Low Black Very Low Canceled scan. Clear documentCanceled send. Clear document Black in wrong positionCyan Very Low Communication errorCyan Cartridge Low Cyan in wrong positionDocument feeder jam. Clear and reload Device error, press OKDevice is busy. Try again later Document feeder door is openDoor open Engine Communication ErrorEngine error. Press OK to continue Document feeder mispick. ReloadFax is busy. Canceled send Fax receive errorFax is busy. Redial pending Fax storage is full. Canceling the fax receive Fax Send errorFit to Page on flatbed only Fax storage is full. Canceling the fax sendGenuine HP supply installed Install color cartridgeJam in Tray 1, Clear jam and then press OK Invalid driver Press OKInvalid entry Jam in area, Open door and clear jamMagenta in wrong position Load Tray 1, Plain Size / Cleaning mode, OK to startLoad tray X Press OK for available media Magenta Cartridge LowMemory is low. Try again later Manual Duplex Load Tray 1, Press OKManual feed Size TYPE, Press OK to use available media Memory is low. Press OKNo dial tone No fax answer. Canceled sendMemory low Only 1 copy made. Press OK to continue Misprint, Press OKNo fax detected No fax answer. Redial pendingRemove shipping locks from cartridges Print failure, press OK. If error repeats, turn off then onScanner error #, Turn off then on Remove shipping lock from color cartridgeUnexpected size in tray # Load size Press OK Scanning error Cannot connectSettings cleared Scanner reserved for PC scanUsed supplies in use Used color installed, to accept press OKUnsupported color Press OK to continue Used color in useEvent-log messages Yellow in wrong positionYellow Very Low Event code Description Print the event logEvent log messages 7Event-log messagesTroubleshooting tools 177 Description Solution Event-log messagesEvent-log-only messages 8Event-log-only messages Event code Description SolutionClear jams Common causes of jamsJam locations Clear jams from the document feeder Enww Clear jams in Tray Enww Enww Clear jams in Tray Clear jams in the fuser area Clear jams in the output bin Clear jams in the duplexer duplexing models only Enww Solve paper-handling problems Product picks up multiple sheets of paperProduct does not pick up paper Solve image-quality problems Problem CausePrint quality examples AaBbCc Problem Cause Solution Severity of the defect Continue Black Color image defectsAaBbCc Clean the paper path from the product control panel Clean the productClean the pickup and separation rollers Clean the paper pathClean the scanner glass strip and platen Clean the document feeder pickup rollers and separation pad Clean the touch screen Factors affecting print performance Solve performance problemsPrint speeds Product does not print Product does not print or it prints slowlyProduct prints slowly Computer is using the incorrect IP address for the product Solve product connectivity problemsSolve direct-connect problems Solve network problemsSolve wireless network problems Computer or workstation might be set up incorrectlyComputer is unable to communicate with the product Wireless connectivity checklist Cannot connect more computers to the wireless product Wireless network is not functioning Network does not appear in the wireless networks listService menu settings Service mode functionsService menu Secondary service menuScan Calibration Calibrate Open the secondary service menuSecondary service menu structure 9Secondary service menuProduct resets Restore the factory-set defaultsNvram initialization Enww Fax troubleshooting checklist Solve fax problemsEnww Fax is busy. Canceled send Fax error messagesCommunication error Document feeder door is open. Canceled faxFax is busy. Redial pending Fax receive errorFax storage is full. Canceling the fax receive Fax Send errorFax storage is full. Canceling the fax send No fax answer. Canceled sendNo dial tone No fax detected No fax answer. Redial pendingEnww View and interpret fax error codes Troubleshoot fax codes and trace reportsCode number Fax trace report Fax logs and reportsPrint individual fax reports Print all fax reportsChange error correction and fax speed Set the fax error reportSet the fax-error-correction mode Change the fax speed Solve problems sending faxesAn error message displays on the control panel Communication error. message displaysOpen the Error Correction menu No fax answer. message displays Fax is busy. message displaysFax storage is full. message displays Document feeder paper jamUnable to use fax functions from the control panel Faxes can be received, but not sentUnable to use group dials Unable to use speed dialsEnww An answering machine is connected to the product Solve problems receiving faxesFax does not respond Fax has a dedicated phone lineAnswer Mode setting is set to the Manual setting Telephone handset is connected to the productVoice mail is available on the fax line Product uses a fax over IP or VoIP phone service Product is connected to a DSL phone serviceNo fax detected. message displays Open the Advanced Setup menu Open the Fax Resolution menu Sender receives a busy signal Fax is received but does not printCannot send or receive a fax on a PBX line Faxes are sending slowly Solve general fax problemsFax cuts off or prints on two pages Fax quality is poorEnww Product updates Enww Parts and diagrams Order parts by authorized service providers Whole unit replacementOrderable parts 5Related documentation and software Related documentation and softwareSupplies and accessories Service partsPart number Cartridge number Description How to use the parts lists and diagrams Scanner and document feeder main assemblies Description Part number Qty Scanner and document feeder main assembliesCovers 2External panels and covers Parts and diagramsCovers 1,2 Internal assemblies 1 Internal assemblies8Internal assemblies 1 4Internal assemblies 2 Internal assemblies 29Internal assemblies 2 5Internal assemblies 3 Internal components 310Internal assemblies 3 A03 Internal assemblies 411Internal assemblies 4 7Internal assemblies 5 Internal assemblies 512Internal assemblies 5 8Internal assemblies simplex models Internal assemblies simplex models13Internal assemblies simplex models 9Internal assemblies duplex models Internal assemblies duplex modelsDescription Part number 14Internal assemblies duplex models10 PCAs PCAsPCAs Sheet paper feeder optional Tray Input devices16250-sheet paper feeder optional Tray 17Alphabetical parts list Alphabetical parts listInternal assemblies 5 Internal assemblies 4Paper pickup assembly RM1-8045-000 18Numerical parts list Numerical parts listRL1-3053-000 Motor, developer DC M1 RM1-8051-000 Paper-pickup guide assembly duplex Enww Service and support HP Product Duration of Limited Warranty Hewlett-Packard limited warranty statementHewlett-Packard limited warranty statement Enww Data stored on the print cartridge End User License Agreement Transfer Enww OpenSSL LJColorMFPM475 Customer supportProduct specifications Product Height Depth Width Weight Physical specificationsTable B-1Physical specifications Table B-2Environmental specifications1Regulatory information Protecting the environment Power consumptionFCC regulations Environmental product stewardship programHP LaserJet print supplies Toner consumptionPaper use PlasticsShipping Residents of Alaska and Hawaii Non-U.S. returnsMultiple returns more than one cartridge Single returnsMaterial restrictions PaperChemical substances Material Safety Data Sheet Msds For more information Declaration of conformity Manufacturers Name Manufacturers AddressSupplementary Information Boise, Idaho USA OctoberFor regulatory topics only Enww Declaration of conformity wireless models Non-volatile memory Certificate of volatilityTypes of memory Volatile memoryPower cord statement Japan Safety statementsLaser safety Vcci statement Japan Power cord instructionsLuokan 1 laserlaite EMC statement Korea Laser statement for FinlandRestriction on Hazardous Substances statement Ukraine GS statement GermanyAdditional FCC statement for telecom products US Additional statements for telecom fax productsEU Statement for Telecom Operation New Zealand Telecom StatementsIndustry Canada CS-03 requirements Telephone Consumer Protection Act USEnww Additional statements for wireless products Korean statement Enww Enww Index Symbols/Numerics 2ndary service menuMsds JamsUSB Control-panel tests 117 Curled media Demo 116 Diagrams 121 288 Macintosh customer support Material Safety Data Sheet Enww Page CE863-90966* *CE863-90966