HP Pro L7400 manual Maintain the printheads

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4.Lift the handle of the printhead (which corresponds to the control panel message) and use it to pull the printhead out of its slot.

5.Obtain clean, dry, soft and lint-free cleaning material. Suitable materials include paper coffee filters and eyeglass lens cleaning paper.

CAUTION: Do not use water.

6.Wipe the electrical contacts on the printhead but do not touch the nozzles.

NOTE: The electrical contacts are small copper-color squares, grouped on one face of the printhead.

The nozzles are on a different face of the printhead. Ink will be visible on the nozzles.

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 Accessibility Safety informationCopyright information Hewlett-Packard Company noticesContents Scan Configure and manageCopy Maintain and troubleshoot Support and warranty HP supplies and accessoriesRegulatory information Device specificationsFind other resources for the product Get startedResource Description LocationUnderstand the device parts Printing supplies area Front viewLabel Back viewControl panel buttons and lights Description Recommended Connection informationInstall the duplexer Install the accessoriesInstall Tray To install the duplexerTo install Tray Turn on accessories in the print driverClick Apply Changes To turn on accessories on Windows computersTo turn on accessories on Macintosh computers Use control panel menus Use the deviceControl-panel message types Status messagesError messages Change device settingsCritical error messages To change settings from the control panelUse the HP photo and imaging software Use the HP Solution Center WindowsTo open the HP Photosmart Software on a Windows computer Load originalsLoad an original on the scanner glass To load an original on the scanner glass Tips for selecting and using print mediaSelect print media Understand specifications for supported media Envelopes Media size TrayStandard media sizes Other media CardsPhoto media Capacity Understand supported media types and weightsTray Type Weight Paper 60 to 105 g/m2 Media Left Right Top Bottom Margin Load mediaSet minimum margins To load Tray 1 main tray To load Tray Follow these steps Configure traysWant to Print on special and custom-sized media To print a borderless document Windows Click Properties or SetupPrint borderless Open the Paper Type/Quality panel To print a borderless document Mac OSChange default settings for all future jobs Windows Change print settingsChange settings Mac OS To change the settingsGuidelines for printing on both sides of a Print on both sides duplexingPerform duplexing To print manually on both sides of a page WindowsTo print automatically on both sides of a page Windows To print manually on both sides of a page Mac OSTo print automatically on both sides of a page Mac OS Open the Two-Sided Printing panelCancel a print job Copy Change the copy settingsMake copies from the control panel To make a copy from the control panelSet the copy paper type Set the number of copiesSet the copy paper size Change copy speed or quality Paper type Control panel settingTo set the paper type for copies from the control panel To change the copy quality from the control panelTo resize a document from the control panel Resize an original to fit onto letter or A4 paperCopy a legal-size document onto letter paper To adjust the copy contrast from the control panel Adjust the lightness and darkness of your copyEnhance blurred areas of your copy To copy a legal-size document onto letter paperEnhance light areas of your copy Cancel a copy jobTo copy a blurred document from the control panel To copy an overexposed photo from the control panelScan an original ScanEdit a scanned original Scan from a TWAIN-compliant or a WIA-compliant programScan from a TWAIN-compliant program Scan from a WIA-compliant programEdit a scanned photo or graphic Change scan settingsCancel a scan job Manage the device Configure and manageWindows Mac OSMonitor the device Administer the deviceUse device management tools Toolbox tabs Toolbox WindowsOpen the Toolbox 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 WindowsShare the device on a locally shared network Connect the device before installing the softwareTo connect the device Share the device on a locally shared network Configure the device Mac OSInstall the software for a direct connection To share the device among computers running Mac OS Uninstall and reinstall the softwareTo uninstall from a Windows computer, method To uninstall from a Windows computer, method Uninstall and reinstall the software Replace the ink cartridges Maintain and troubleshootSupported ink cartridges To replace the ink cartridges Maintain the printheadsCheck printhead health Print the print quality diagnosticAlign the printheads Clean the printhead contacts manually Clean the printheadsTo clean the printhead contacts manually Calibrate the linefeedMaintain the printheads Chapter To replace the printheads Replace the printheadsStore printing supplies Clean the scanner glass Clean the deviceTo clean the scanner glass Store ink cartridgesClean the exterior Troubleshooting tips and resourcesSolve printing problems Device is not responding nothing prints Error message appears on control-panel displayDevice shuts down unexpectedly Blank or partial page printed Device does not accept printheadDevice takes a long time to print Something on the page is missing or incorrect Placement of the text or graphics is wrongPoor print quality and unexpected printouts Check the page-orientation settingDevice prints half a page, then ejects the paper Check the media sizeMeaningless characters print Poor quality printoutsInk is not filling the text or graphics completely Ink is smearingOutput is faded or dull colored Colors are printing as black and whiteWrong colors are printing Solve paper-feed problemsPrintout shows bleeding colors Colors do not line up properlyOptional Tray 2 cannot be inserted Another paper-feed problem is occurringMedia is not supported for the printer or tray Media is not picked up from a trayNo copy came out Solve copy problemsDocuments are missing or faded Copies are blankSize is reduced Copy quality is poorCopy defects are apparent Solve scan problemsPart of the document did not scan or text is missing Scanner did nothingScan takes too long Text cannot be edited Error messages appearScanned image quality is poor Check the originalsScan defects are apparent Hardware installation suggestions Troubleshoot installation issuesSize is reduced Check the hardware connectionsVerify installation preliminaries Software installation suggestionsCheck the computer system Check the device to ensure the followingTo clear a jam Clear jamsClear a jam in the device Chapter Tips for avoiding jams Accessories HP supplies and accessoriesOrder printing supplies online SuppliesHP media PrintheadsSupport and warranty Hewlett-Packard limited warranty statement Before you call Obtain electronic supportObtain HP telephone support Support process If you have a problem, follow these stepsHP support by phone Phone support periodAppendix B Support and warranty Placing a call After the phone support period Additional warranty optionsCall HP Korea customer support HP Quick Exchange Service JapanTo remove ink cartridges before shipment Prepare the device for shipmentRemove the ink cartridges and printheads before shipment To remove the control-panel faceplate Remove the control-panel faceplateTo remove printheads before shipment Pack the device To pack the device Physical specifications Device specificationsProduct features and capacities Processor and memory specificationsDevice memory System requirementsOperating system compatibility Minimum requirementsCopy specifications Print specificationsScan specifications Environmental 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