HP Pro L7400 manual Align the printheads

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1Printer Information: Shows device information (such as the product model number, serial number, and firmware version number), the number of pages printed from the tray, the ink level information, and the printhead health status.

2Test Pattern 1: If the lines are not straight and connected, align the printheads. For more information, see Align the printheads.

3Test Pattern 2: If there are thin white lines across any of the colored blocks, clean the printheads. For more information, see Clean the printheads.

4Test Pattern 3: If there are dark lines or white gaps where the arrows are pointing, calibrate the linefeed. For more information, see Calibrate the linefeed.

Align the printheads

Whenever you replace a printhead, the device automatically aligns the printheads to ensure the best print quality. However, if the appearance of your printed pages indicates that the printheads are misaligned, you can start the alignment process manually.

•Control panel: Press the Setup button, select Tools, select Align Printer, and then press OK. Press OK when the alignment is done to continue.

•Toolbox (Windows): Click the Services tab, and then click Align Printheads and follow the onscreen instructions.

•HP Printer Utility (Mac OS): Click Align from the Information and Support panel.

Maintain the printheads

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Contents HP Officejet Pro L7400 All-in-One series Page HP Officejet Pro L7400 All-in- One series Hewlett-Packard Company notices Safety informationAccessibility Copyright informationContents Configure and manage CopyScan Maintain and troubleshoot Support and warranty HP supplies and accessoriesRegulatory information Device specificationsLocation Get startedFind other resources for the product Resource DescriptionUnderstand the device parts Printing supplies area Front viewBack view Control panel buttons and lightsLabel Description Recommended Connection informationTo install the duplexer Install the accessoriesInstall the duplexer Install TrayTo install Tray Turn on accessories in the print driverTo turn on accessories on Windows computers To turn on accessories on Macintosh computersClick Apply Changes Status messages Use the deviceUse control panel menus Control-panel message typesTo change settings from the control panel Change device settingsError messages Critical error messagesUse the HP photo and imaging software Use the HP Solution Center WindowsLoad 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 Open the Paper Type/Quality panel To print a borderless document Mac OSTo change the settings Change print settingsChange default settings for all future jobs Windows Change settings Mac OSTo print manually on both sides of a page Windows Print on both sides duplexingGuidelines for printing on both sides of a Perform duplexingOpen the Two-Sided Printing panel To print manually on both sides of a page Mac OSTo print automatically on both sides of a page Windows To print automatically on both sides of a page Mac OSCancel a print job To make a copy from the control panel Change the copy settingsCopy Make copies from the control panelSet the number of copies Set the copy paper sizeSet the copy paper type To change the copy quality from the control panel Paper type Control panel settingChange copy speed or quality To set the paper type for copies 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 To copy a legal-size document onto letter paper Adjust the lightness and darkness of your copyTo adjust the copy contrast from the control panel Enhance blurred areas of your copyTo copy an overexposed photo from the control panel Cancel a copy jobEnhance light areas of your copy To copy a blurred document from the control panelScan an original ScanScan from a WIA-compliant program Scan from a TWAIN-compliant or a WIA-compliant programEdit a scanned original Scan from a TWAIN-compliant programChange scan settings Cancel a scan jobEdit a scanned photo or graphic Mac OS Configure and manageManage the device WindowsAdminister the device Use device management toolsMonitor the device Toolbox Windows Open the ToolboxToolbox tabs HP Printer Utility panels Information and Support panel HP Printer Utility Mac OSHP Instant Support Printer Settings panelMyPrintMileage Understand the self-test diagnosticUnderstand the self-test diagnostic Direct connection Configure the device WindowsConnect 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 To replace the ink cartridges Maintain the printheadsCheck printhead health Print the print quality diagnosticAlign the printheads Calibrate the linefeed Clean the printheadsClean the printhead contacts manually To clean the printhead contacts manuallyMaintain the printheads Chapter To replace the printheads Replace the printheadsStore printing supplies Store ink cartridges Clean the deviceClean the scanner glass To clean the scanner glassTroubleshooting 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 Something on the page is missing or incorrect Placement of the text or graphics is wrongCheck the media size Check the page-orientation settingPoor print quality and unexpected printouts Device prints half a page, then ejects the paperMeaningless characters print Poor quality printoutsColors are printing as black and white Ink is smearingInk is not filling the text or graphics completely Output is faded or dull coloredColors do not line up properly Solve paper-feed problemsWrong colors are printing Printout shows bleeding colorsMedia is not picked up from a tray Another paper-feed problem is occurringOptional Tray 2 cannot be inserted Media is not supported for the printer or trayNo copy came out Solve copy problemsCopy quality is poor Copies are blankDocuments are missing or faded Size is reducedCopy defects are apparent Solve scan problemsScanner did nothing Scan takes too longPart of the document did not scan or text is missing Check the originals Error messages appearText cannot be edited Scanned image quality is poorScan defects are apparent Check the hardware connections Troubleshoot installation issuesHardware installation suggestions Size is reducedCheck the device to ensure the following Software installation suggestionsVerify installation preliminaries Check the computer systemClear jams Clear a jam in the deviceTo clear a jam Chapter Tips for avoiding jams Supplies HP supplies and accessoriesAccessories Order printing supplies onlineHP media PrintheadsSupport and warranty Hewlett-Packard limited warranty statement Obtain electronic support Obtain HP telephone supportBefore you call Phone support period If you have a problem, follow these stepsSupport process HP support by phoneAppendix B Support and warranty Placing a call After the phone support period Additional warranty optionsCall HP Korea customer support HP Quick Exchange Service JapanPrepare 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 Processor and memory specifications Device specificationsPhysical specifications Product features and capacitiesMinimum requirements System requirementsDevice memory Operating system compatibilityEnvironmental specifications Print specificationsCopy specifications Scan specificationsElectrical specifications Regulatory information FCC statement Toxic and hazardous substance table LED indicator statement Regulatory model numberDeclaration of conformity Environmental product stewardship program Appendix D Index Symbols/NumericsPage OCR Page Twain 114