HP Pro L7400 manual Device does not accept printhead, Device takes a long time to print

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Chapter 8

Device does not accept printhead

Check the printhead latch

Make sure the printhead latch is properly closed.

Check the printhead

•Make sure the printhead is inserted into its correct color-coded slot. For more information, see Replace the printheads.

•Remove the printhead, and check to make sure the orange protective caps have been removed from the printhead.

Clean the printhead

Complete the printhead cleaning procedure. For more information, see Maintain the printheads.

Turn off the device after removing the printhead

After removing the printhead, turn off the device, wait about 20 seconds, and turn it on again without the printhead installed. After the device has restarted, reinsert the printhead.

Device takes a long time to print

Check the system resources

Make sure your computer has enough resources to print the document in a reasonable amount of time. If the computer meets only the minimum system requirements, documents might take longer to print. For more information on minimum and recommended system requirements, see System requirements. In addition, if the computer is too busy running other programs, documents can print more slowly.

Check the device software settings

Print speed is slower when Best or Maximum dpi is selected as the print quality. To increase the print speed, select different print settings in the device driver. For more information, see Change print settings.

Blank or partial page printed

Check for empty ink cartridges

Check the control panel to see which cartridge is low or empty. The Toolbox (Windows), HP Printer Utility (Mac OS), and the self-test diagnostic page (see Understand the self-test diagnostic page) provide information about ink levels. If you are printing black text and a blank page prints, the black cartridge might be empty. For more information, see Replace the ink cartridges.

Check the printhead latch

Make sure the printhead latch is properly closed.

68 Maintain and troubleshoot

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Contents HP Officejet Pro L7400 All-in-One series Page HP Officejet Pro L7400 All-in- One series Safety information AccessibilityCopyright information Hewlett-Packard Company noticesContents Configure and manage CopyScan Maintain and troubleshoot HP supplies and accessories Support and warrantyDevice specifications Regulatory informationGet started Find other resources for the productResource Description LocationUnderstand the device parts Front view Printing supplies areaBack view Control panel buttons and lightsLabel Connection information Description RecommendedInstall the accessories Install the duplexerInstall Tray To install the duplexerTurn on accessories in the print driver To install TrayTo turn on accessories on Windows computers To turn on accessories on Macintosh computersClick Apply Changes Use the device Use control panel menusControl-panel message types Status messagesChange device settings Error messagesCritical error messages To change settings from the control panelUse the HP Solution Center Windows Use the HP photo and imaging softwareLoad originals Load an original on the scanner glassTo open the HP Photosmart Software on a Windows computer Tips for selecting and using print media Select print mediaTo load an original on the scanner glass Understand specifications for supported media Media size Tray Standard media sizesEnvelopes Cards Photo mediaOther media Understand supported media types and weights Tray Type Weight Paper 60 to 105 g/m2Capacity Load media Set minimum marginsMedia Left Right Top Bottom Margin To load Tray 1 main tray To load Tray Configure trays Want toFollow these steps Print on special and custom-sized media Click Properties or Setup Print borderlessTo print a borderless document Windows To print a borderless document Mac OS Open the Paper Type/Quality panelChange print settings Change default settings for all future jobs WindowsChange settings Mac OS To change the settingsPrint on both sides duplexing Guidelines for printing on both sides of aPerform duplexing To print manually on both sides of a page WindowsTo print manually on both sides of a page Mac OS To print automatically on both sides of a page WindowsTo print automatically on both sides of a page Mac OS Open the Two-Sided Printing panelCancel a print job Change the copy settings CopyMake copies from the control panel To make a copy from the control panelSet the number of copies Set the copy paper sizeSet the copy paper type Paper type Control panel setting Change copy speed or qualityTo set the paper type for copies from the control panel To change the copy quality from the control panelResize an original to fit onto letter or A4 paper Copy a legal-size document onto letter paperTo resize a document from the control panel Adjust the lightness and darkness of your copy To adjust the copy contrast from the control panelEnhance blurred areas of your copy To copy a legal-size document onto letter paperCancel a copy job Enhance light areas of your copyTo copy a blurred document from the control panel To copy an overexposed photo from the control panelScan Scan an originalScan from a TWAIN-compliant or a WIA-compliant program Edit a scanned originalScan from a TWAIN-compliant program Scan from a WIA-compliant programChange scan settings Cancel a scan jobEdit a scanned photo or graphic Configure and manage Manage the deviceWindows Mac OSAdminister the device Use device management toolsMonitor the device Toolbox Windows Open the ToolboxToolbox tabs HP Printer Utility Mac OS HP Printer Utility panels Information and Support panelPrinter Settings panel HP Instant SupportUnderstand the self-test diagnostic MyPrintMileageUnderstand the self-test diagnostic Configure the device Windows Direct connectionConnect the device before installing the software To connect the deviceShare the device on a locally shared network Configure the device Mac OS Install the software for a direct connectionShare the device on a locally shared network Uninstall and reinstall the software To uninstall from a Windows computer, methodTo share the device among computers running Mac OS To uninstall from a Windows computer, method Uninstall and reinstall the software Maintain and troubleshoot Supported ink cartridgesReplace the ink cartridges Maintain the printheads To replace the ink cartridgesPrint the print quality diagnostic Check printhead healthAlign the printheads Clean the printheads Clean the printhead contacts manuallyTo clean the printhead contacts manually Calibrate the linefeedMaintain the printheads Chapter Replace the printheads To replace the printheadsStore printing supplies Clean the device Clean the scanner glassTo clean the scanner glass Store ink cartridgesTroubleshooting tips and resources Solve printing problemsClean the exterior Error message appears on control-panel display Device shuts down unexpectedlyDevice is not responding nothing prints Device does not accept printhead Device takes a long time to printBlank or partial page printed Placement of the text or graphics is wrong Something on the page is missing or incorrectCheck the page-orientation setting Poor print quality and unexpected printoutsDevice prints half a page, then ejects the paper Check the media sizePoor quality printouts Meaningless characters printInk is smearing Ink is not filling the text or graphics completelyOutput is faded or dull colored Colors are printing as black and whiteSolve paper-feed problems Wrong colors are printingPrintout shows bleeding colors Colors do not line up properlyAnother paper-feed problem is occurring Optional Tray 2 cannot be insertedMedia is not supported for the printer or tray Media is not picked up from a traySolve copy problems No copy came outCopies are blank Documents are missing or fadedSize is reduced Copy quality is poorSolve scan problems Copy defects are apparentScanner did nothing Scan takes too longPart of the document did not scan or text is missing Error messages appear Text cannot be editedScanned image quality is poor Check the originalsScan defects are apparent Troubleshoot installation issues Hardware installation suggestionsSize is reduced Check the hardware connectionsSoftware installation suggestions Verify installation preliminariesCheck the computer system Check the device to ensure the followingClear jams Clear a jam in the deviceTo clear a jam Chapter Tips for avoiding jams HP supplies and accessories AccessoriesOrder printing supplies online SuppliesPrintheads HP mediaSupport and warranty Hewlett-Packard limited warranty statement Obtain electronic support Obtain HP telephone supportBefore you call If you have a problem, follow these steps Support processHP support by phone Phone support periodAppendix B Support and warranty After the phone support period Additional warranty options Placing a callHP Quick Exchange Service Japan Call HP Korea customer supportPrepare the device for shipment Remove the ink cartridges and printheads before shipmentTo remove ink cartridges before shipment Remove the control-panel faceplate To remove printheads before shipmentTo remove the control-panel faceplate Pack the device To pack the device Device specifications Physical specificationsProduct features and capacities Processor and memory specificationsSystem requirements Device memoryOperating system compatibility Minimum requirementsPrint specifications Copy specificationsScan specifications Environmental specificationsElectrical specifications Regulatory information FCC statement LED indicator statement Regulatory model number Toxic and hazardous substance tableDeclaration of conformity Environmental product stewardship program Appendix D Symbols/Numerics IndexPage OCR Page Twain 114