HP Pro L7400 Calibrate the linefeed, Clean the printheads, Clean the printhead contacts manually

Page 64

Chapter 8

Calibrate the linefeed

•Control panel: Press the Setup button, select Tools, select Calibrate Linefeed, and then press OK.

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

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

Clean the printheads

NOTE: Cleaning uses ink, so clean the printheads only when necessary.

The cleaning process takes up to 3.5 minutes. Some noise might be generated in the process.

•Control panel: Press the Setup button, select Tools, and then select Clean Printhead.

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

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

Clean the printhead contacts manually

After the printheads are installed, you might get a control panel message telling you the device will not print. If you receive this message, you might need to clean the electrical contacts on the printheads and in the device.

CAUTION: Clean the electrical contacts only after you have attempted to clean the printheads. Electrical contacts contain sensitive electronic components that can be damaged easily. For more information, see Clean the printheads.

To clean the printhead contacts manually

1.Open the top cover.

2.If the carriage does not move to the left automatically, press and hold the OK button for five seconds. Wait for the carriage to stop moving, and then unplug the power cord from the printer.

3.Lift the printhead latch.

60 Maintain and troubleshoot

Image 64

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 Copy Configure and manageScan 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 areaControl panel buttons and lights Back viewLabel 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 Macintosh computers To turn on accessories on Windows 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 an original on the scanner glass Load originalsTo open the HP Photosmart Software on a Windows computer Select print media Tips for selecting and using print mediaTo load an original on the scanner glass Understand specifications for supported media Standard media sizes Media size TrayEnvelopes Photo media CardsOther media Tray Type Weight Paper 60 to 105 g/m2 Understand supported media types and weightsCapacity Set minimum margins Load mediaMedia Left Right Top Bottom Margin To load Tray 1 main tray To load Tray Want to Configure traysFollow these steps Print on special and custom-sized media Print borderless Click Properties or SetupTo 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 copy paper size Set the number of copiesSet 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 panelCopy a legal-size document onto letter paper Resize an original to fit onto letter or A4 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 programCancel a scan job Change scan settingsEdit a scanned photo or graphic Configure and manage Manage the deviceWindows Mac OSUse device management tools Administer the deviceMonitor the device Open the Toolbox Toolbox WindowsToolbox 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 connectionTo connect the device Connect the device before installing the softwareShare the device on a locally shared network Install the software for a direct connection Configure the device Mac OSShare the device on a locally shared network To uninstall from a Windows computer, method Uninstall and reinstall the softwareTo share the device among computers running Mac OS To uninstall from a Windows computer, method Uninstall and reinstall the software Supported ink cartridges Maintain and troubleshootReplace 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 cartridgesSolve printing problems Troubleshooting tips and resourcesClean the exterior Device shuts down unexpectedly Error message appears on control-panel displayDevice is not responding nothing prints Device takes a long time to print Device does not accept printheadBlank 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 apparentScan takes too long Scanner did nothingPart 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 a jam in the device Clear jamsTo 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 HP telephone support Obtain electronic 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 supportRemove the ink cartridges and printheads before shipment Prepare the device for shipmentTo remove ink cartridges before shipment To remove printheads before shipment Remove the control-panel faceplateTo 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