Lexmark 250dn manual Paper characteristics, Weight

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Selecting print media

The laser printing process heats paper to high temperatures of 210°C (410°F) for non-MICR applications. Use only paper able to withstand these temperatures without discoloring, bleeding, or releasing hazardous emissions. Check with the manufacturer or vendor to determine whether the paper chosen is acceptable for laser printers.

When loading paper, note the recommended print side on the paper package, and load paper accordingly. The printer can automatically feed paper weights from 60 to 90 g/m2 (16 to 24 lb bond) grain long. Paper lighter than 60 g/m2 (16 lb) might not be stiff enough to feed properly, causing jams. Paper heavier than 90 g/m2 (24 lb) should be fed through the manual feeder.

The duplex unit only supports certain sizes and types of print media. Only A4-, letter-, legal- and folio-size paper can be used for duplex printing. The printer does not support duplex printing on any other type of print media.

Paper characteristics

The following paper characteristics affect print quality and reliability. It is recommended that these guidelines are followed when evaluating new paper stock.

For detailed information, see the Card Stock & Label Guide available on the Lexmark Web site at www.lexmark.com/ publications.

Weight

The printer can automatically feed paper weights from 60 to 90 g/m2 (16 to 24 lb bond) grain long in the integrated and optional trays and paper weights from 60 to 163 g/m2 (16 to 43 lb bond) grain long in the manual feeder. Paper lighter than 60 g/m2 (16 lb) might not be stiff enough to feed properly, causing jams. For best performance, use 75 g/m2 (20 lb bond) grain long paper. To use paper narrower than 182 x 257 mm (7.2 x 10.1 in.), it is recommended that the weight be equal to 90 g/m2 (24 lb bond).

Curl

Curl is the tendency of media to curve at its edges. Excessive curl can cause paper feeding problems. Curl can occur after the paper passes through the printer, where it is exposed to high temperatures. Storing paper unwrapped in hot, humid, cold, and dry conditions, even in the trays, can contribute to paper curling prior to printing and can cause feeding problems.

Smoothness

The degree of smoothness of paper directly affects print quality. If the paper is too rough, the toner does not fuse to the paper properly, resulting in poor print quality. If the paper is too smooth, it can cause paper feeding or print quality issues. Smoothness needs to be between 100 and 300 Sheffield points; however, smoothness between 150 and 250 Sheffield points produces the best print quality.

Moisture content

The amount of moisture in the paper affects both print quality and the ability of the printer to feed the paper properly. Leave the paper in its original wrapper until it is time to use it. This limits the exposure of the paper to moisture changes that can degrade its performance.

Condition paper while it is still in the original wrapper. To condition it, store it in the same environment as the printer for 24 to 48 hours before printing to let the paper stabilize in the new conditions. Extend the time several days if the storage or transportation environment is very different from the printer environment. Thick paper may also require a longer conditioning period because of the mass of material.

Grain direction

Grain refers to the alignment of the paper fibers in a sheet of paper. Grain is either grain long, running the length of the paper, or grain short, running the width of the paper.

For 60 to 90 g/m2 (16 to 24 lb bond) paper, grain long fibers are recommended. It is not recommended that short grain paper be used in any paper size with a weight less than 64 g/m2 (17 lb), in A5-size paper weighting less than 70 g/m2 (18 lb), or in A6-size paper of any weight.

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Contents E250d and E250dn Trademarks Safety informationEdition June Contents Contents Printer overview Printer overview Using the control panel Error Ready Paper Jam Cancel button Load PaperOverview of the control panel Press and release Continue To resume printingUnderstanding the control panel lights Understanding the control panel lightsCommon light sequences = On= On Understanding the control panel lights Busy Ready / Power SaverPrimary codes Understanding the control panel lights Hex Trace Ready WaitingNot ready Complex Understanding the control panel lights Close doorInsufficient collation area / Insufficient memory Press Cancel Load print mediaPress Continue To resume printing Press and hold Cancel Understanding the control panel lights Load manual feederToner low Press and release ContinueSequence and continue printing Photoconductor kit life warningHow do I order them? on Programming engine code / Programming system code Network interface errors / Host interface disabled Service errorMore information Press Continue To resume printing once all Understanding the control panel lights Printer errorPaper jam printer error Understanding the control panel lights Short paper Output bin fullSecondary errors When the Error and ContinueWhen the Paper Jam Continue Secondary light sequencesUnderstanding the control panel lights Understanding the control panel lights Understanding the control panel lights Secondary error codes Paper jam at the input sensorPaper jams between the input and exit sensors Paper jams as a printed job exits the printerPaper jam in the 550-sheet drawer Paper jam duplex rearPaper jam duplex unsupported size Understanding the control panel lights Complex Network interface errors Printing the job. The job may not print correctlyUnderstanding the control panel lights Font error Press Cancel To cancel the print jobInsufficient printer memory PrintingHost interface disabled Understanding the control panel lights ENA connection lostPrinting the job the job may not print correctly Printing the job Press Cancel To cancel the print jobUnderstanding the control panel lights Memory full Understanding the control panel lights Invalid engine code Invalid network codeMissing / Defective toner cartridge SequenceToner Low/Replace PC Kit-On Load Paper-On Error-On Understanding the printer configuration menus Printing the Printer Settings Configuration sheetNetwork menu Configuration menus overviewConfiguration menus overview Setup menu Parallel menuUSB menu Utilities menuPrint media tasks and tips What types of print media can be loaded?Where can print media be loaded in the printer? Where can print media be loaded in the printer?Selecting print media PaperSelecting print media Paper Transparencies Envelopes Labels Card stockPaper characteristics WeightPreprinted forms and letterhead Unacceptable paperLabels TransparenciesEnvelopes Tips on storing print media and supplies Card stockStoring paper Storing suppliesTips 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 Printing tasks Manually feeding a print jobManually feeding a print job Printing on both sides of the paper duplex printing Printing on both sides of the paper duplex printingPortrait LandscapeShort Edge means pages are bound along the short edge Across Down Printing multiple page images on one page N-up printingPrinting multiple page images on one page N-up printing Page Printing using an overlay or a watermark Using an overlayPrinting on letterhead Printing on letterheadCanceling a print job Using a watermarkCanceling a print job From the printer control panelCanceling a job from a computer running Mac OS Canceling a job from a Macintosh computerCanceling a print job from a computer running Mac OS Installing options Accessing the system boardAccessing the system board Accessing the system board Access the system board see Accessing the system board on See Recognizing installed options onAdding a memory card Adding a memory cardInstalling an optional 550-sheet drawer Click File Æ Properties Click the Install Options tabPrinting the menu settings and network setup pages Software tasksPrinting a test page from the computer Click File Æ Properties Click Print TestUsing the Local Printer Settings Utility Using the Local Printer Settings UtilitySupplies information What supplies do I need and how do I order them?Conserving supplies What supplies do I need and how do I order them?Knowing when you need new supplies Ordering a maintenance kitKnowing when you need new supplies Checking the toner and photoconductor levelsRecognizing 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 Turning on Reduced Curl mode on TroubleshootingGeneral problems General problems Selecting printer operating modeTurning on Reduced Curl mode Print quality problems Print quality problemsWhen sheets are handled Print is too light or too darkTransparency print quality is poor Toner specksGhost Images Uneven printingIncorrect margins Skewed printPrints and exits to the output bin Solid black pagesPrint media curls badly once it Cleaning the printhead lens Close the front door Turn the printer on European Community EC directives conformity Conventions Electronic emission noticesIndustry Canada compliance statement Hot surface notice Power regulation notice Japanese Vcci notice Korean MIC statementOff mode Noise emission levelsProduct energy consumption Total energy usageStatement of Limited Warranty for Lexmark E250d and E250dn Laser noticeLaser advisory label Lexmark International, Inc. Lexington, KYLimitation of liability Limited warranty serviceExtent of limited warranty Additional rights Index USBIndex 101
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