Lexmark 250dn manual Cleaning the printhead lens

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Print quality problems

Cleaning the printhead lens

Some print quality problems can be solved by cleaning the printhead lens.

1Turn the printer off.

2Press the button on the left side of the printer to release and lower the front door.

3Remove the print cartridge assembly by pulling on the toner cartridge handle.

Note: Do not press the button on the print cartridge assembly.

1

2

3

Place the print cartridge assembly on a flat, clean surface.

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Contents E250d and E250dn Edition June Safety informationTrademarks Contents Contents Printer overview Printer overview Press and release Continue To resume printing Using the control panelError Ready Paper Jam Cancel button Load Paper Overview of the control panel= On Understanding the control panel lightsUnderstanding the control panel lights Common light sequences= On Understanding the control panel lights Primary codes Ready / Power SaverBusy Waiting Understanding the control panel lights Hex Trace ReadyNot ready Insufficient collation area / Insufficient memory Understanding the control panel lights Close doorComplex Load print media Press CancelPress and release Continue Press Continue To resume printing Press and hold CancelUnderstanding the control panel lights Load manual feeder Toner lowHow do I order them? on Photoconductor kit life warningSequence and continue printing Programming engine code / Programming system code Service error Network interface errors / Host interface disabledPaper jam printer error Understanding the control panel lights Printer errorMore information Press Continue To resume printing once all Output bin full Understanding the control panel lights Short paperSecondary light sequences Secondary errorsWhen the Error and Continue When the Paper Jam ContinueUnderstanding the control panel lights Understanding the control panel lights Paper jam at the input sensor Understanding the control panel lights Secondary error codesPaper jams as a printed job exits the printer Paper jams between the input and exit sensorsPaper jam duplex rear Paper jam in the 550-sheet drawerPaper jam duplex unsupported size Understanding the control panel lights Complex Printing the job. The job may not print correctly Network interface errorsPrinting Understanding the control panel lights Font errorPress Cancel To cancel the print job Insufficient printer memoryUnderstanding the control panel lights ENA connection lost Host interface disabledUnderstanding the control panel lights Memory full Printing the job Press Cancel To cancel the print jobPrinting the job the job may not print correctly Invalid network code Understanding the control panel lights Invalid engine codeSequence Missing / Defective toner cartridgeToner Low/Replace PC Kit-On Load Paper-On Error-On Printing the Printer Settings Configuration sheet Understanding the printer configuration menusConfiguration menus overview Configuration menus overviewNetwork menu Parallel menu Setup menuUtilities menu USB menuWhat 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 Transparencies Envelopes Labels Card stock Selecting print mediaPaper Selecting print mediaWeight Paper characteristicsUnacceptable paper Preprinted forms and letterheadEnvelopes TransparenciesLabels Storing supplies Tips on storing print media and suppliesCard stock Storing paperTips on preventing jams Tips on preventing jamsLoading the 250-sheet tray Loading the 250-sheet trayLoading the 250-sheet tray Loading the 250-sheet tray Extending the tray for legal- or folio-size paper Loading the 250-sheet tray Attaching the dust cover Loading the manual feeder Loading the manual feederUsing the rear exit Using the rear exitClearing jams Secondary error codes on page 25 for more informationClearing jams Clearing jams Clearing jams Clearing jams Manually feeding a print job Printing tasksManually feeding a print job Landscape Printing on both sides of the paper duplex printingPrinting on both sides of the paper duplex printing PortraitShort Edge means pages are bound along the short edge Printing multiple page images on one page N-up printing Printing multiple page images on one page N-up printingAcross Down Page Printing on letterhead Printing using an overlay or a watermarkUsing an overlay Printing on letterheadFrom the printer control panel Canceling a print jobUsing a watermark Canceling a print jobCanceling a print job from a computer running Mac OS Canceling a job from a Macintosh computerCanceling a job from a computer running Mac OS Accessing the system board Installing optionsAccessing the system board Accessing the system board Adding a memory card Access the system board see Accessing the system board onSee Recognizing installed options on Adding a memory cardClick File Æ Properties Click the Install Options tab Installing an optional 550-sheet drawerClick File Æ Properties Click Print Test Printing the menu settings and network setup pagesSoftware tasks Printing a test page from the computerUsing the Local Printer Settings Utility Using the Local Printer Settings UtilityWhat supplies do I need and how do I order them? Supplies informationWhat supplies do I need and how do I order them? Conserving suppliesChecking the toner and photoconductor levels Knowing when you need new suppliesOrdering a maintenance kit Knowing when you need new suppliesRecognizing the control panel light sequences Changing the toner cartridge Changing the toner cartridgeChanging the toner cartridge Changing the photoconductor kit Changing the photoconductor kitChanging the photoconductor kit Lexmark products General problems TroubleshootingTurning on Reduced Curl mode on Turning on Reduced Curl mode Selecting printer operating modeGeneral problems Print quality problems Print quality problemsToner specks When sheets are handledPrint is too light or too dark Transparency print quality is poorSkewed print Ghost ImagesUneven printing Incorrect marginsPrint media curls badly once it Solid black pagesPrints and exits to the output bin Cleaning the printhead lens Close the front door Turn the printer on Industry Canada compliance statement Conventions Electronic emission noticesEuropean Community EC directives conformity Japanese Vcci notice Korean MIC statement Hot surface notice Power regulation noticeTotal energy usage Off modeNoise emission levels Product energy consumptionLexmark International, Inc. Lexington, KY Statement of Limited Warranty for Lexmark E250d and E250dnLaser notice Laser advisory labelExtent of limited warranty Limited warranty serviceLimitation of liability Additional rights USB IndexIndex 101