HP Pro L7400 manual Solve scan problems, Copy defects are apparent

Page 81

Copy defects are apparent

•Vertical white or faded stripes

The media might not meet Hewlett-Packard media specifications (for example, the media is too moist or too rough). See Select print media for more information.

•Too light or dark

Try adjusting the contrast and copy-quality settings.

•Unwanted lines

The scanner glass, lid backing, or frame might need cleaning. See Clean the device for more information.

•Black dots or streaks

Ink, glue, correction fluid, or an unwanted substance might be on the scanner glass or lid backing. Try cleaning the device. See Clean the device for more information.

•Unclear text

•Try adjusting the contrast and copy-quality settings.

•The default enhancement setting might not be suitable for the job. Check the setting and change it to enhance text or photographs, if needed. For more information, see Change the copy settings.

•Incompletely filled text or graphics

Try adjusting the contrast and copy-quality settings.

•Large, black typefaces look splotchy (not smooth)

The default enhancement setting might not be suitable for the job. Check the setting and change it to enhance text or photographs, if needed. For more information, see Change the copy settings.

•Horizontal grainy or white bands in light-gray to medium-gray areas

The default enhancement setting might not be suitable for the job. Check the setting and change it to enhance text or photographs, if needed. For more information, see Change the copy settings.

The device prints half a page, then ejects the paper

Check the ink cartridges

The ink cartridges may have run out of ink, and the print job was cancelled. Replace the ink cartridges, and then resend the print job to the device. For more information, see Replace the ink cartridges.

Solve scan problems

If the following topics do not help, see Support and warranty for information about HP support.

NOTE: If you are starting the scan from a computer, see the software Help for troubleshooting information.

Solve scan problems

77

Image 81

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 Configure and manage CopyScan 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 viewBack view Control panel buttons and lightsLabel 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 Windows computers To turn on accessories on Macintosh 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 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 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 number of copies Set the copy paper sizeSet 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 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 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 programChange scan settings Cancel a scan jobEdit a scanned photo or graphic Manage the device Configure and manageWindows Mac OSAdminister 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 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 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 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 problemsScanner did nothing Scan takes too longPart 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 jams Clear a jam in the deviceTo 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 electronic support Obtain HP telephone 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 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 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