Lexmark 240n manual How to clean the printhead lens

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Print quality problems

How to clean the printhead lens

You can solve some print quality problems by cleaning the printhead lens.

1Turn the printer off.

2Open the front cover by pressing the button on the left side of the printer and lowering the cover.

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Contents E240, E240n Edition notice TrademarksLicensing notice Safety information Conventions Safety informationUnited Kingdom Telecommunications Act Laser noticePrinter energy consumption Printer energy consumptionStatement of Limited Warranty Statement of Limited WarrantyLimitation of liability Contents Print media tasks and tips ContentsHow to install options 108 Printer overview Press and release Continue Printer overviewBefore installing printer software Installing software for local printingInstalling printer software using the drivers CD Installing printer software through the Add Printer WizardLocal Printer Settings Utility Installing optional printer softwareMacintosh MacintoshUNIX/Linux UNIX/Linux`Creating a desktop printer icon Mac OS For Mac OS 9.0 Open Apple LaserWriterInstalling software for direct printing Installing software for network printingDirect IP printing Shared printingInstalling software on the computer attached to the printer Setting up shared printingConnecting other network computers to the printer WindowsHelpful tips for network printing Go to Verifying the IP settings onAssigning a printer IP address Close Network Neighborhood or My Network PlacesVerifying the IP settings Macintosh Printing a network setupInstall a custom PPD file Mac OSUsing IP Printing NetWare NetWareWhat types of print media can be loaded? Print media tasks and tipsWhere can print media be loaded in the printer? Where can print media be loaded in the printer?Paper Tips on choosing the right print mediaPreprinted forms and letterhead TransparenciesLabels Card stock Tips on storing print media and suppliesStoring paper Storing suppliesTips on preventing jams Tips on preventing jamsHow to load the 250-sheet and 550-sheet trays How to load the 250-sheet and 550-sheet traysHow to load the 250-sheet and 550-sheet trays Extending the tray for legal or folio size paper Page How to load the manual feeder How to use the rear exitHow to load the manual feeder How to use the rear exit How to clear paper jams How to clear paper jamsHow to clear paper jams How to clear paper jams Printing tasks How to manually feed a print jobHow to manually feed a print job How to print on both sides of the paper manual duplex How to print on both sides of the paper manual duplexHow to print on both sides of the paper manual duplex How to print multiple page images on one page N-up printing How to print multiple page images on one page N-up printingHow to print a booklet How to print a bookletHow to print a poster How to print a posterHow to print using an overlay or a watermark How to print on letterheadUsing an overlay How to print on letterheadUsing a watermark How to print using an overlay or a watermarkClick Watermark Canceling a job from a Macintosh computer How to cancel a print jobFrom the printer operator panel From a Windows computerHow to access the system board How to install optionsHow to access the system board How to add a memory card How to add a memory cardSee Recognizing installed options How to install a 550-sheet drawer Recognizing installed optionsHow to install a 550-sheet drawer Click File Æ Properties Click the Install Options tab Recognizing installed optionsUsing the operator panel Press and hold CancelOverview of the operator panel Understanding the operator panel lights Understanding the operator panel lights= On = Blinking Close door Load mediaSee Secondary errors on page 55 for more information Secondary errors Paper jam codes Operator panel codes Operator panel codesReady / Power Saver Printer Setup Utility onPrimary codes Press and hold Cancel To reset the printer Press and release CancelOperator panel codes Busy Hex Trace ReadyOperator panel codes Waiting Flushing / Resolution reducedClose door Operator panel codes Not readyLoad manual feeder Operator panel codes Load mediaToner low Operator panel codes Print side two of a duplex jobReplace photoconductor Operator panel codes Photoconductor kit life warningContinue-On Toner Low/Replace PC Kit-Blink Error-Blink Cartridge region mismatch Operator panel codes Change invalid toner cartridgeCancel job / Reset printer Operator panel codes Service error Printer errorPress Continue Operator panel codes Paper jam printer error Secondary error codes on page 70 for more informationCleared from the paper path Errors on Secondary error codesPaper jam in the manual feeder Operator panel codes Paper jam at the input sensorPaper jams as a printed job exits the printer Operator panel codes Paper jam in Tray Press Cancel To cancel the print job Operator panel codes ComplexInsufficient printer memory Operator panel codes Insufficient collation area Network interface errors Operator panel codes Font errorHost interface disabled Short paper Operator panel codes Memory fullInvalid network code Operator panel codes Invalid engine codePrinting the Printer Settings Configuration sheet Understanding the printer configuration menusConfiguration menus overview Configuration menus overviewToner Low/Replace PC Kit Load Paper ContinueParallel menu Network menuSetup menu Parallel ModeUSB menu Utilities menu How to print a test How to print the menu settings and network setup pagesSoftware and network tasks WindowsVerifying the IP settings How to configure for TCP/IPHow to configure for TCP/IP Assigning a printer IP addressUsing the printer resident Web Using the Local Printer Setup UtilityUsing the printer resident Web What supplies do I need and how do I order them? Supplies informationHow to conserve supplies How to conserve suppliesHow to know when you need new supplies How to know when you need new suppliesChecking the toner and photoconductor levels Recognizing the operator panel light sequences How to change a toner cartridge How to change a toner cartridgeHow to change a toner cartridge How to change a toner cartridge Recycling Lexmark products Recycling Lexmark productsHow to change a photoconductor kit How to change a photoconductor kitHow to change a photoconductor kit How to change a photoconductor kit Troubleshooting General problemsClick Printer Software Have another cartridge to General problemsPrint quality problems Print quality problemsPrint irregularities When you handle the sheetsPrint too light Print too darkUneven printing Ghost ImagesIncorrect margins Skewed printSolid black pages Paper curls badly once it printsExits to the bin How to clean the printhead lens 106 107 Numerics IndexIndex TCP/IP