Image-formation system | HP P3005 manual

Image-formation system

Laser printing requires the interaction of several different technologies, including electronics, optics, and electrophotographics, to provide a printed page.

Figure 4-7Print cartridge diagram

Each process functions independently and must be coordinated with the other device processes. Image formation consists of the following five processes:

●Electrostatic latent-image formation

●Developing

●Transfer

●Fusing

●Drum cleaning

The five processes contain eight steps, which are shown in Figure 4-8Image-formation system on page 52 and described in the following sections.

Figure 4-8Image-formation system

52 Chapter 4 Theory of operation

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HP P3005 manual 8Image-formation system Theory of operation

Contents

HP LaserJet P3005 Series printers Page HP LaserJet P3005 Series printers Copyright information Safety informationTrademark credits Table of contents Maintenance Gear assembly Service approachPaper feed guide assembly Reinstallation notes for the gear assembly Troubleshooting Order through service or support providers Print-quality checklistWiring diagrams Paper-handling accessories Appendix a Specifications EMI statement Korea Power cord statement JapanVcci statement Japan Laser statement for Finland Enww Alphabetical parts list Diagnostics menuTray 2 pickup assembly 10 Numerical parts list Xii Model and serial numbers Systems overview Print engine general structure Jam-detection sensors ECU wiringGrounding-spring locations Jetdirect 197 Xvi Chapter contents Device information Device configurations P3005dn Features Feature Description Accessibility Supplies Walkaround Device parts Interface ports Model name Model number Number Button or light Control-panel layoutFunction Select Minimum system requirements Device softwareSupported operating systems Software for Windows computers HP Web JetadminSupported printer drivers HP Easy Printer Care software Other software Software for Macintosh computersEmbedded Web server Remove software from Windows operating systems Uninstall softwareRemove software from Macintosh operating systems Media specifications Select print media 1Supported media sizes Media size Dimensions Weight and thicknessSupported media sizes 2Automatic 2-sided printing 3Tray 1 media types Type DimensionsSupported media types 4Tray 2 and tray 3 media types Paper to avoid Installation and configuration Site preparation Location specificationsOperating environment Load input trays Load tray 1 multipurpose tray Enww Load tray 2 and optional tray Enww Supply replacement guidelines Install suppliesChange the print cartridge Enww Enww Install memory Install accessoriesInstall device memory Install accessories Enww Check Dimm installation Verify that Dimm is installed correctly Install an HP Jetdirect print server card Enable memory for WindowsUse HP Jetdirect print server cards Remove an HP Jetdirect print server card Enww Maintenance Supplies life Approximate print-cartridge replacement intervalsManage supplies Manage the print cartridge Print-cartridge authentication HP fraud hotline and Web site Clean the paper path Clean the deviceClean the exterior Clean spilled toner Create and use the cleaning Management tools Description How to printUse information pages File directory Use the HP Easy Printer Care softwareOpen the HP Easy Printer Care software PCL or PS font list HP Easy Printer Care software sections SectionOptions Embedded Web server sections Open the embedded Web server by using a network connectionUse the embedded Web server Tab or section Options Or Sleep mode on Settings tab Tab or section Use HP Web Jetadmin softwareUse the HP Printer Utility for Macintosh Networking tab HP Printer Utility features Open the HP Printer Utility Theory of operation Basic operation Formatter Engine control unit ECU Formation roller 3Engine control system circuit diagram Theory of operation ECU Pickup/feed/delivery system Laser/scanner system 6Laser/scanner system Image-formation system 8Image-formation system Theory of operation Laser beam exposure Primary chargingDeveloping Transfer FusingSeparation Drum cleaning 13 Fusing Internal components 15Cross-section of device Internal components 1Operation sequences 2Power-on sequenceTiming Name Timing Purpose 16Operational sequences Timing diagram Print cartridge memory system Write Enww Removal and replacement Separation pad Electrostatic discharge Removal and replacement strategyOverview Required tools Types of screws Illustration Description Size Part number Use Before performing service Service approachPre-service procedures After performing service Parts removal order Covers Right-side cover Left-side cover Enww Back cover Cover Top, right cover 6Removing the I/O cover Lift the cover off of the device Top cover Front, right cover 8Removing the top cover Lift the cover off of the device 9Removing the front, right cover 1 Removal and replacement Enww Control panel 12Reinstalling the control panel 13Removing the formatter 1 Removal and replacement Formatter 14Removing the formatter 2 15Removing the formatter 3 Removal and replacement Fuser Back cover see Back cover on Cover see I/O cover on 17Removing the fuser 2 Removal and replacement Enww 19Removing the laser/scanner 1 Removal and replacement Laser/scanner Laser/scanner 21Removing the ECU 1 Removal and replacement Engine control unit ECU 22Removing the ECU 2 23Removing the ECU 3 Removal and replacement 24Removing the ECU 4 25Removing the ECU 5 Removal and replacement 26Removing the ECU 6 27Removing the ECU 7 Removal and replacement Enww Access plate High-voltage power supply 31Removing the power supply 1 Enww 33Removing the power supply 3 Enww 35Removing the power supply 5 Enww 37Reinstalling the oblique-roller assembly Paper feed guide assembly Paper feed guide assembly Main motor 40Removing the main motor 2 Gear assembly 41Removing the gear assembly 1 Removal and replacement Remove four screws callout 3 from the gear-assembly plate Reinstallation notes for the gear assembly 43Reinstalling the gear assembly Removal and replacement Tray 1 solenoid Tray 2 solenoid Label reader memory tag 46Removing the e-label reader 1 Enww Face-down-roller shaft 48Removing the face-down-roller shaft 1 Enww Cartridge door 50Removing the cartridge door 1 51Removing the cartridge door 2 Removal and replacement 52Removing the cartridge door 3 Transfer roller Registration assembly 54Removing the registration assembly 1 Enww Remove four screws callout Tray 1 pickup roller Tray 2 pickup roller Enww Separation pad Enww Troubleshooting Troubleshooting process Basic troubleshooting Resolve control-panel messages Control-panel messagesControl-panel message types Control panel message Description Recommended action 10.XX.YY Supply Memory Error XX Internal Clock Error JAM Inside Rear Door JAM Inside TOP CoverJAM Inside Front Door 13.XX.YY Fuser JAM Inside TOP 13.XX.YY JAM in Tray 13.XX.YY JAM Inside Duplexer Insufficient Memory 13.XX.YY JAM Inside Rear Door13.XX.YY JAM Inside TOP Cover TOO Complex Parallel I/O Buffer Overflow EIO X Buffer OverflowEmbedded I/O Buffer Overflow Serial I/O Buffer Overflow Embedded I/O BAD Transmission ErrorXxxxx Error Unexpected Size in Tray XY Error Fuser ErrorTo continue turn off then on Alternates with Formatter To continue turn off then on 55.XX.YY DC Controller ErrorNo System Permanent Storage Full Storage Error Settings8X.YYYY EIO Error Permanent Storage Write Fail On Tray 8X.YYYY Embedded JetdirectAction not Currently Available Custom Chosen Personality not Close TOP Cover Code CRC ErrorInstall Black Cartridge Data Received Load Tray X Type Size Insufficient Memory to LoadFONTS/DATA Load Tray 1 Plain Paper MEM Test Failure Replace Dimm NON HP Supply InstalledManually Feed Output Stack NON HP Supply in USE RAM Disk File System is Full RFU Load ErrorRAM Disk File Operation Failed RAM Disk is Write Protected Tray XX Open USB Accessory ErrorTray XX Empty Type Size Tray XX Open or Empty USB Storage X Removed USB Storage File System is FullUSB Storage is Write Protected USE Tray X Type Size Avoid jams Cause SolutionClear jams 1Common causes of jams Typical jam locations Jam detection 1Jam-detection sensors Clear jams from the input-tray areas Jam type Description Enww Clear jams from the print-cartridge area Clear jams from the output-bin areas Clear jams from the optional duplexer Enww Communications checks Interface troubleshootingEIO troubleshooting Computer direct connect parallel test Network printing problems Jetdirect Packet Size Cold reset Service mode functionsNvram initialization Skip disk-load Service menu service PIN codesHard-disk initialization Self test Service ID Restoring the service ID Convert the service ID to an actual date 2Diagnostics menu Troubleshooting toolsDiagnostics menu Control-panel menus Test pages Engine-test Formatter test Image defect ruler Use FTP to upgrade the firmware on a network connection Upgrade the firmwareDetermine the current firmware version Use HP Web Jetadmin to upgrade the firmware Use MS-DOS commands to upgrade the firmware \YOURSERVER\YOURCOMPUTER Upgrade the HP Jetdirect firmware Device does not pull media from a tray Cause Solution Troubleshoot general printing problemsDevice selects media from the wrong tray CauseSolution Paper curls when it exits the device Cause Solution Print job prints on both sides of the paper Cause Solution Pages print, but are totally blank Cause Solution Messages and see Control-panel messages on Pages are wrinkled or folded Troubleshoot media handling problemsMultiple pages feed Pages are skewed Assembly on Troubleshoot print-quality problems Print-quality checklist Image-defect examples AaBbCc Light print partial AaBbCc Light print entire Specks Dropouts Lines Gray background Toner smear Loose toner Repeating defects Repeating image Misformed characters Skew Curl or wave Wrinkles or creases Vertical white lines Tire tracks White spots on black Scattered lines Blurred print Random image repetition Device component locations DiagramsMain assemblies Main parts Main parts Sensors and switches 6Sensors and switches Motors, fans, and solenoids 7Motors, fans, and solenoids Wiring diagrams PCAs 3 4 12 11 10Circuit diagram 1 196 Chapter Troubleshooting Circuit diagram 2 Enww Parts and diagrams Order directly from HP Order parts, accessories, and suppliesOrder through service or support providers Order directly through the HP Easy Printer Care software Print cartridge Paper-handling accessoriesPart numbers Memory Cables and interfaces Enww Covers Covers Description Part number Qty 2Internal components 1 Parts and diagrams 2Internal components 1 Enww Enww 3Internal components 2 Parts and diagrams 3Internal components 2 502 Pin, dowel XD3-2120-122 503 Ring, E XD2-1200-802 Enww 4Internal components 3 Parts and diagrams 4Internal components 3 5Internal components 4 Parts and diagrams 5Internal components 4 6Internal components 5 Parts and diagrams 6Internal components 5 7Internal components 6 7Internal components 6 Tray 2 pickup assembly 8Tray 2 pickup assembly Parts and diagrams 8Tray 2 pickup assembly Alphabetical parts list 9Alphabetical parts list Connector, snap tight, bk VS1-7177-004 Film, fuser drive side plate RC2-0649-000 Internal components 4 Holder, switch link RC2-0634-000 Motor, DC M1, main RK2-1488-000 Registration assembly RM1-3715-000 Sensor-flag assembly RM1-3769-000 Spring, torsion RU5-2386-000 10Numerical parts list Numerical parts listPart number Description RC1-4061-000 Spring, torsion RC2-0468-000 Cushion, right lower RC2-0612-000 Cover, engine controller RC2-0705-000 Lever, drive release RM1-3716-000 Multipurpose paper pick-up roller assembly RM1-4040-000 Top sensor PCA PS901 RU5-2386-000 Spring, torsion XA9-1503-000 Screw, tap, M3x6 Enww Specifications Device model Height Depth Width Weight Physical specificationsTable A-1Device dimensions Device model Height Depth Width Table A-4Power consumption average, in watts Electrical specificationsTable A-3Power requirements Specification Volt models Operating environment Acoustic specificationsTable A-5Sound power and pressure level Table A-6Necessary conditions Service and support Hewlett-Packard limited warranty statement Customer self repair warranty service Print cartridge limited warranty statement HP service agreements Online ServicesHP Customer Care HP Easy Printer Care software HP support and information for Macintosh computers Next-day on-site service HP maintenance agreementsOn-site service agreements Weekly volume on-site service Extended warranty Enww Regulatory information FCC regulations Environmental product stewardship program Material restrictions HP print supplies returns and recycling program informationPaper HP LaserJet P3005 device Material Safety Data Sheet Msds For more information Enww Declaration of conformity Declaration of Conformity Laser safety Safety statementsCanadian DOC regulations Laser statement for Finland Luokan 1 laserlaite Enww Index ECU Enww Msds RFU Enww See also trays Trays status Enww Page Q7812-90910