26Removing the ECU 6 | HP P3005 instruction

7.Remove seven screws (callout 8) from the ECU pan, and remove the grounding screw (callout 9).

8

9

Figure 5-26Removing the ECU (6 of 8)

ENWW	Engine control unit (ECU) 93

Image 111

HP P3005 manual 26Removing the ECU 6

Contents

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