Cleaning the printhead lens | Lexmark 250dn instruction

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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Lexmark 250dn manual Cleaning the printhead lens

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 Ready Not ready Insufficient collation area / Insufficient memory Understanding the control panel lights Close doorComplex Load print media Press Cancel Press and release Continue Press Continue To resume printing Press and hold CancelUnderstanding the control panel lights Load manual feeder Toner low How 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 disabled Paper 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 paper Secondary light sequences Secondary errorsWhen the Error and Continue When the Paper Jam Continue Understanding the control panel lights Understanding the control panel lights Paper jam at the input sensor Understanding the control panel lights Secondary error codes Paper jams as a printed job exits the printer Paper jams between the input and exit sensors Paper jam duplex rear Paper jam in the 550-sheet drawer Paper jam duplex unsupported size Understanding the control panel lights Complex Printing the job. The job may not print correctly Network interface errors Printing Understanding the control panel lights Font errorPress Cancel To cancel the print job Insufficient printer memory Understanding the control panel lights ENA connection lost Host interface disabled Understanding 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 code Sequence Missing / Defective toner cartridge Toner Low/Replace PC Kit-On Load Paper-On Error-On Printing the Printer Settings Configuration sheet Understanding the printer configuration menus Configuration menus overview Configuration menus overviewNetwork menu Parallel menu Setup menu Utilities menu USB menu What types of print media can be loaded? Print media tasks and tips Where 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 media Weight Paper characteristics Unacceptable paper Preprinted forms and letterhead Envelopes TransparenciesLabels Storing supplies Tips on storing print media and suppliesCard stock Storing paper Tips on preventing jams Tips on preventing jams Loading the 250-sheet tray Loading the 250-sheet tray Loading 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 feeder Using the rear exit Using the rear exit Clearing jams Secondary error codes on page 25 for more informationClearing jams Clearing jams Clearing jams Clearing jams Manually feeding a print job Printing tasks Manually feeding a print job Landscape Printing on both sides of the paper duplex printingPrinting on both sides of the paper duplex printing Portrait Short 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 letterhead From the printer control panel Canceling a print jobUsing a watermark Canceling a print job Canceling 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 options Accessing 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 card Click File Æ Properties Click the Install Options tab Installing an optional 550-sheet drawer Click File Æ Properties Click Print Test Printing the menu settings and network setup pagesSoftware tasks Printing a test page from the computer Using the Local Printer Settings Utility Using the Local Printer Settings Utility What supplies do I need and how do I order them? Supplies information What supplies do I need and how do I order them? Conserving supplies Checking the toner and photoconductor levels Knowing when you need new suppliesOrdering a maintenance kit Knowing when you need new supplies Recognizing the control panel light sequences Changing the toner cartridge Changing the toner cartridge Changing the toner cartridge Changing the photoconductor kit Changing the photoconductor kit Changing 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 problems Toner specks When sheets are handledPrint is too light or too dark Transparency print quality is poor Skewed print Ghost ImagesUneven printing Incorrect margins Print 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 notice Total energy usage Off modeNoise emission levels Product energy consumption Lexmark International, Inc. Lexington, KY Statement of Limited Warranty for Lexmark E250d and E250dnLaser notice Laser advisory label Extent of limited warranty Limited warranty serviceLimitation of liability Additional rights USB Index Index 101