Transcription
HP LaserJet Pro M304, M305, M404, M405HP LaserJet Pro MFP M329, M428, M429Service Manual: ww.hp.com/support/ljM429MFP
LaserJet Pro M304, M305, M404, M405LaserJet Pro M329, M428, M429Troubleshooting Manual
Copyright and LicenseTrademark Credits Copyright 2019 HP Development Company,L.P.Microsoft , Windows , Windows XP, andWindows Vista are U.S. registered trademarksof Microsoft Corporation.Reproduction, adaptation, or translation withoutprior written permission is prohibited, except asallowed under the copyright laws.The information contained herein is subject tochange without notice.The only warranties for HP products andservices are set forth in the express warrantystatements accompanying such products andservices. Nothing herein should be construed asconstituting an additional warranty. HP shall notbe liable for technical or editorial errors oromissions contained herein.Edition 1, 8/2019
Conventions used in this guideTIP:Helpful hints or shortcuts.Reinstallation tip:NOTE:Reinstallation helpful hints, shortcuts, or considerations.Information that explains a concept or how to complete a task.IMPORTANT:CAUTION:Information that help the user to avoid potential printer error conditions.Procedures that the user must follow to avoid losing data or damaging the printer.WARNING! Procedures that the user must follow to avoid personal injury, catastrophic loss of data, or extensivedamage to the printer.ENWWiii
ivConventions used in this guideENWW
HP service and supportLearn about HP access to additional service and support information.Additional service and support for channel partnersChannel partners, go to partner.hp.com, and then use the steps below to access the HP Web-based InteractiveSearch Engine (WISE).Access WISE for Channel partners1.Select Services & Support, and then select Services Delivery.2.Select Technical Support, and then select Technical Documentation.Find information about the following topics Service manuals Service advisories Up-to-date control panel message (CPMD) troubleshooting Install and configure Printer specifications Solutions for printer issues and emerging issues Remove and replace part instructions and videos Warranty and regulatory informationAdditional service and support for HP internal personnelHP internal personnel, go to one of the following Web-based Interactive Search Engine (WISE) sites:Americas E - ISE - ISE - frWISE - FrenchAsia Pacific / Japan (APJ)ENWW https://support.hp.com/wise/home/apj-enWISE - English https://support.hp.com/wise/home/apj-jaWISE - Japanese https://support.hp.com/wise/home/apj-koWISE - Korean https://support.hp.com/wise/home/apj-zh-HansWISE - Chinese (simplified)v
https://support.hp.com/wise/home/apj-zh-HantWISE - Chinese (traditional) https://support.hp.com/wise/home/apj-thWISE - ThaiEurope / Middle East / Africa nWISE - EnglishHP service and supportENWW
Revision historyThe information contained herein is subject to change without notice. The only warranties for HP products andservices are set forth in the express warranty statements accompanying such products and services. Nothingherein should be construed as constituting an additional warranty. HP shall not be liable for technical or editorialerrors or omissions contained herein.Table -1 Revision historyRevision numberRevision dateRevision notes18/2019HP LaserJet Pro M304, M305, M404, M405HP LaserJet Pro MFP M329, M428, M429Troubleshooting manual initial releaseENWWvii
viiiRevision historyENWW
Table of contents1 Theory of operation . 1HP service and support . 2Additional service and support for channel partners . 2Additional service and support for HP internal personnel . 2Basic operation . 4Sequence of operation . 5Formatter-control system . 6Power management . 6Printer job language (PJL) . 7Printer management language (PML) . 7Control panel . 7Walk-up USB (MFP only) . 8Wireless . 8Low end data model (LEDM) overview . 8CPU . 8Input/output (I/O) . 8USB . 8USB hosts . 810/100/1000 networking . 9Fax . 9Memory . 9Firmware . 9Nonvolatile random access memory (NVRAM) . 9Flash memory . 9Random access memory (RAM) . 9HP Memory Enhancement technology (MEt) . 9Engine-control system . 10DC controller . 11Motors . 13Fans . 13Solenoids . 13Clutches . 14ENWWix
Switches . 14Sensors . 15Low-voltage power supply . 16Over-current/over-voltage protection . 17Safety . 17Low-voltage power supply functions . 17High-voltage power supply . 18High-voltage power supply circuits . 19Fuser bias . 19Fuser control . 19Fuser circuits . 20Fuser control functions . 21Fuser heater protection . 22Engine laser scanner system . 23Laser/scanner failure detection . 24Safety . 24Image-formation process . 25Step 1: Primary charging . 28Step 2: Laser-beam exposure . 29Step 3: Development . 29Step 4: Transfer . 30Step 5: Separation . 31Step 6: Fusing . 31Step 7: Drum cleaning . 31Toner cartridges . 32Design . 32Memory chip . 34Toner level and cartridge life detection . 34Dynamic security . 35Input trays/accessories . 36Tray 3 . 37Basic operation . 37Paper path . 37Paper feeder controller . 37Motor control . 38Pickup and feed operation . 38Electrical components, pickup and feed . 38Other functions . 39Jam detection . 40Scanning and image capture system . 41Document feeder system . 42xENWW
Document feeder simplex operation . 422 Solve problems . 43HP service and support . 44Additional service and support for channel partners . 44Additional service and support for HP internal personnel . 44Solve problems checklist . 46Solve problems checklist . 46Print the menu map . 48Print the configuration page . 49Print the Printer Status Report (includes a partial event log) . 50Print the demo log . 51Troubleshooting process . 52Solve problems checklist . 52Print the menu map . 53Print a configuration page . 53Print the Printer Status Report (includes a partial event log) . 54Determine the problem source . 54Pre-troubleshooting checklist . 54Troubleshooting flowchart . 55Power subsystem . 56Power-on checks . 56Power-on troubleshooting overview . 57Control panel checks . 63Tools for troubleshooting . 64Individual component diagnostics . 64LED diagnostics . 64Network LEDs (network models only) . 64Control panel LEDs . 64Engine diagnostics . 65Engine test . 65Diagrams . 66Diagrams: Block diagrams . 66Cross-sectional view of printer . 66Cross-sectional view of 550–sheet paper feeder . 67Diagrams: Printed circuit assembly (PCA) connector locations . 68Diagrams: DC controller connections . 68Paper feeder controller PCA . 69Diagrams: External plug and port locations . 69Diagrams: Locations of major components . 71Major components (printer base) . 71ENWWxi
Motor and fan . 72Rollers and pads (printer base) . 73PCAs (printer base) . 74Diagrams: Timing chart . 75Diagrams: Circuit diagrams . 76Advanced configuration with HP Embedded Web Server (EWS) and HP Device Toolbox(Windows) . 77Internal print-quality test pages . 84Clean the paper path . 84Clean the paper path (LCD control panel) . 84Clean the paper path (touchscreen control panel) . 84Print the configuration page . 84Print the configuration page from an LCD control panel . 84Print the configuration page from a touchscreen control panel . 84Control panel menus . 852-line control-panel view (SFP models) . 85Touchscreen control-panel view (MFP models) . 87Setup menu . 88Preferences menu . 88Network Setup menu . 90Wi-Fi Direct menu (wireless models only) . 92Bluetooth low energy menu . 93Web Services Setup menu . 93Tray Management menu . 93Paper Setup menu . 95Supply Settings menu . 96Printer maintenance menu . 96Print Settings menu . 99Power Management menu . 100Reports menu . 101Fax Setup menu (M428fdn, M428m, M429fdn, M429fdw) . 102Security menu . 106Quick Forms menu . 106Function specific menus . 107USB menu . 107Fax Menu (M248/M429f models only) . 107Copy menu (M329/M428/M429 models only) . 110Scan menu (M329/M428/M429 models only) . 112Apps . 112Print . 112Quick sets . 112xiiENWW
Hidden menus . 113Support menu . 113Boot Screen Menu . 126Error code and control panel message troubleshooting overview . 129Error codes . 129How to search for printer documentation . 130How to search WISE for printer documentation . 130How to search GCSN for printer documentation . 130Solve paper-handling problems . 133Printer feeds incorrect page size . 133Printer pulls from incorrect tray . 133Printer will not duplex or duplexes incorrectly . 133Paper does not feed from Tray 2 . 134Output is curled or wrinkled . 134Printer does not pick up paper or misfeeds . 135The printer does not pick up paper . 135The printer picks up multiple sheets of paper . 135The document feeder jams, skews, or picks up multiple sheets of paper (MFPmodels) . 136Paper does not feed automatically . 136Prevent paper jams . 137Clear paper jams . 138Clear paper jams (SFP) . 138Experiencing frequent or recurring paper jams? . 138Jam locations . 139Clear paper jams in Tray 1 . 140Clear paper jams in Tray 2 . 141Clear paper jams in optional Tray 3 . 145Clear paper jams in the fuser . 149Clear paper jams in the output bin . 152Clear paper jams in the duplexer . 155Clear paper jams (MFP) . 157Introduction . 157Experiencing frequent or recurring paper jams? . 157Jam locations .
herein should be construed as constituting an additional warranty. HP shall not be liable for technical or editorial errors or omissions contained herein. Table -1 Revision history Revision number Revision date Revision notes 1 8/2019 HP LaserJet Pro M304, M305, M404, M405 HP LaserJet Pro MFP M329, M428, M429 Troubleshooting manual initial release
