HP Pro L7400 manual Something on the page is missing or incorrect

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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 it has restarted, reinsert the printhead.

Something on the page is missing or incorrect

Check the printheads

Print the print quality diagnostic page on a clean sheet of white paper. Evaluate any problem areas, and perform the recommended actions. For more information, see Print the print quality diagnostic page.

Check the margin settings

Make sure the margin settings for the document do not exceed the printable area of the device. For more information, see Set minimum margins.

Check the color print settings

Make sure Print in Grayscale is not selected in the printer driver. For information on changing this setting, see Change print settings.

Check the device location and length of USB cable

High electromagnetic fields (such as those generated by USB cables) can sometimes cause slight distortions to printouts. Move the device away from the source of the electromagnetic fields. Also, it is recommended that you use a USB cable that is less than 3 meters (9.8 feet) long to minimize the effects of these electromagnetic fields.

Placement of the text or graphics is wrong

Check how the media is loaded

Make sure the media width and length guides fit snugly against the edges of the stack of media, and make sure the tray is not overloaded. For more information, see Load media.

Solve printing problems

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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 Copy Configure and manageScan 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 viewControl panel buttons and lights Back viewLabel Description Recommended Connection informationInstall the duplexer Install the accessoriesInstall Tray To install the duplexerTo install Tray Turn on accessories in the print driverTo turn on accessories on Macintosh computers To turn on accessories on Windows computersClick Apply Changes 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 WindowsLoad 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 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 size Set the number of copiesSet the copy paper type 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 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 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 programCancel a scan job Change scan settingsEdit a scanned photo or graphic Manage the device Configure and manageWindows Mac OSUse device management tools Administer the deviceMonitor the device Open the Toolbox Toolbox WindowsToolbox 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 WindowsTo 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 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 cartridges Solve printing problems Troubleshooting tips and resources Clean 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 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 problemsScan takes too long Scanner did nothingPart of the document did not scan or text is missing 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 followingClear a jam in the device Clear jamsTo clear a jam Chapter Tips for avoiding jams Accessories HP supplies and accessoriesOrder printing supplies online SuppliesHP media PrintheadsSupport and warranty Hewlett-Packard limited warranty statement Obtain HP telephone support Obtain electronic supportBefore you call 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 JapanRemove 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 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