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Lexmark C920 User Manual

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    							Solving option problems
    141
    Troubleshooting
    Solving option problems
    If an option does not operate correctly after it is installed or if it quits working:
    Turn the printer off, wait for about 10 seconds, and turn the printer on. If this does not fix the problem, unplug the 
    printer, and check the connection between the option and printer.
    Print the menu settings page and check to see if the option is listed in the Installed Options list. If the option is not 
    listed, reinstall it. See Printing the menu settings page for more information.
    Make sure the option is selected in the software application you are using.
    For Macintosh computer users: Make sure the printer is set up in Chooser.
    The following table lists printer options and suggested corrective actions for related problems. If the suggested corrective 
    action does not fix the problem, call your service representative.
    OptionAction
    Drawers  Make sure the connection between drawers and the printer is secure.
     Make sure the print media is loaded correctly.
    Duplex unit Make sure the connection between the duplex unit and the printer is secure. If the duplex 
    unit is listed on the menu settings page, but print media jams when it enters or exits the 
    duplex unit, the printer and duplex unit may not be properly aligned. 
    Finisher  Make sure the connection between the finisher and the printer is secure. If the finisher is 
    listed on the menu settings page, but print media jams when it exits the printer and 
    enters the finisher, it may not be properly installed. Reinstall the finisher.
     Make sure you are using a print media size compatible with your optional output bins. 
    See Media sizes and support.
    Flash memory Make sure flash memory is securely connected to the printer system board. 
    Hard disk with 
    adapterMake sure the hard disk is securely connected to the printer system board.
    Infrared adapter If infrared communication stops or does not occur, make sure:
     The distance between the two infrared ports is 1 meter 
    (39 in.) or less. If communication does not occur between ports, move the ports closer 
    together.
     Both ports are stable.
     The computer and the printer are on a level surface.
     The angle of communication between the two infrared ports is within 15 degrees of 
    either side of an imaginary line drawn between the two infrared ports.
     No bright light, such as direct sun light, is interfering with communication.
     No objects are placed between the two infrared ports.
    Internal print 
    server Make sure the internal print server (also called an internal network adapter or INA) is 
    securely connected to the printer system board. 
     Make sure you are using the correct cable, that it is securely connected, and the 
    network software is correctly set up. 
    See the drivers CD that shipped with your printer for more details.
    High capacity 
    feederSee Solving high capacity feeder problems.
    Printer memory Make sure printer memory is securely connected to the printer system board.
    USB/Parallel 
    interface Make sure the USB/parallel interface card is securely connected to the printer system 
    board.
     Make sure you are using the correct cable and that it is securely connected.
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    							Solving option problems
    142
    Troubleshooting
    Solving high capacity feeder problems
    ProblemSolution
    The paper tray does not raise when the 
    loading door is closed, or the paper tray does 
    not lower when the door is opened and the 
    paper tray button is pushed.Check the following:
     The printer is properly attached to the high capacity feeder.
     The printer is powered on.
     The power cord is plugged firmly into the back of the high capacity 
    feeder.
     The power cord is plugged into an outlet.
     The outlet has power.
    The paper tray lowers unexpectedly. Check to see if your printer is out of paper or has a jam.
    More than one sheet of paper is fed or a sheet 
    is fed improperly.Remove the paper in the printer paper path, and check the stack to 
    ensure the paper has been loaded properly. Be sure to remove the top 
    and bottom sheets of each ream of paper that is loaded.
    A jam occurs.
    Rubber feed rollers do not turn to advance 
    paper.Check the following:
     The power cord is plugged firmly into the back of the high capacity 
    feeder.
     The power cord is plugged into an outlet.
     The outlet has power 
    Consistent misfeeds or jams in the feeder. Try the following:
     Flex the paper.
     Turn the print media over.
    Check the following:
     Feeder is properly installed.
     Paper is loaded correctly.
     Paper is not damaged.
     Paper meets specifications.
     Guides are positioned correctly for the paper size selected.
    Service messages  A service message indicates printer failure that may require service. 
    Turn the printer off, wait about 10 seconds, and then turn the printer on.
    If the error recurs, write down the error number, the problem, and a 
    detailed description. Call for service.
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    							Solving paper feed problems
    143
    Troubleshooting
    Solving paper feed problems
    SymptomCauseSolution
    Paper frequently jams. You are using paper that does not 
    meet the printer specifications.Use recommended paper and other specialty media.
    See the Card Stock & Label Guide available on our 
    Lexmark Web site at www.lexmark.com for detailed 
    specifications.
    See Avoiding jams for information that can help prevent 
    jams from occurring.
    You have loaded too much paper 
    or too many envelopes.Make sure the stack of paper you load does not exceed 
    the maximum stack height indicated in the tray or on the 
    multipurpose feeder.
    Guides in the selected tray are not 
    set to the appropriate position for 
    the size paper loaded.Move the guides in the tray to the correct position.
    The paper has absorbed moisture 
    due to high humidity.Load paper from a fresh package.
    Store paper in its original wrapper until you load it.
    See Storing media for more information.
    The Paper Jam 
    message remains after 
    you remove the 
    jammed paper. You have not pressed
      or have 
    not cleared the entire paper path.Clear paper from the entire paper path, and then press 
    .
    See Clearing jams for more information.
    The page that jammed 
    does not reprint after 
    you clear the jam. Jam Recovery in the Setup Menu 
    is set to Off.Set Jam Recovery to Auto or On.
    See the Menus and Messages Guide for more 
    information.
    Blank pages feed into 
    the output bin. An incorrect media type is loaded 
    in the tray being printed from.Load the correct type media for your print job, or change 
    the Paper Type to match the type of media loaded.
    See the Menus and Messages Guide for more 
    information.
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    							Solving print quality problems
    144
    Troubleshooting
    Solving print quality problems
    To help isolate print quality problems, print the Print Quality Test Pages.
    1Turn the printer off.
    2Press   and  . Hold them while you turn the printer on, and until the Performing Self Test message 
    appears.
    Config Menu.appears.
    3Press  until  Prt Quality Pgs appears, and then press .
    The pages are formatted. The Printing Quality Test Pages message appears, then the pages print. The 
    message remains on the operator panel until all the pages print.
    After the Print Quality Test Pages print, to exit the Config Menu:
    4Press  until  Exit Config Menu appears, and then press  to complete the procedure.
    The information in the following table may help you solve print quality problems. If these suggestions still do not correct the 
    problem, call for service. You may have a printer part that requires adjustment or replacement.
    SymptomCauseSolution
    Repeating defects Either a toner cartridge, a 
    photodeveloper, the transfer 
    belt or the fuser is defective.Marks occur repeatedly only in one 
    color and multiple times on a page:
     Replace the toner cartridge if the defects 
    occur every:
    – 45.1mm (1.78in.)
    –60mm (2.4in.)
     Replace the photodeveloper (black 
    alone or all other colors at once) if the 
    defects occur every: 
    – 31.5 mm (1.2 in.)
    –94mm (3.7in.)
    Marks occur across the page repeatedly 
    in all colors:
     Replace the transfer belt if the defects 
    occur every 27 mm (1.1 in.)
     Replace the fuser if the defects occur 
    every 140 mm (5.5 in.)
    Color misregistration Color has shifted outside of 
    the appropriate area or has 
    been superimposed over 
    another color area.Top to Bottom or Left to Right:
    1Re-seat the cartridges by removing 
    them from the printer and then 
    reinserting them.
    2Adjust the color alignment. Use the 
    Alignment page under the Utilities Menu.
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    							Solving print quality problems
    145
    Troubleshooting
    Dark Lines A toner cartridge, a 
    photodeveloper, or the transfer 
    belt is defective.If the problem is on the front (print side) of 
    the page:
    1Replace the color cartridge causing the 
    line.
    2If you still have the problem, replace the 
    photodeveloper (black alone or all other 
    colors at once).
    If the problem is on the back of the page, 
    replace the transfer belt.
    Light colored line, 
    white line, or wrong 
    colored lineThe LEDs are dirty. See Cleaning the LEDs.
    Streaked horizontal 
    linesA toner cartridge, a 
    photodeveloper, the transfer 
    belt, or fuser may be defective, 
    empty, or worn.Replace the cartridge, photodeveloper 
    (black alone or all other colors at once), 
    transfer belt, or fuser as needed.
    Streaked vertical lines  Toner is smeared before 
    fusing to the paper.
     The toner cartridge is 
    defective. If paper is stiff, try feeding from another 
    tray.
     Replace the color cartridge causing the 
    streaks.
    Print irregularities  Paper has absorbed 
    moisture due to high 
    humidity.
     You are using paper that 
    does not meet the printer 
    specifications.
     A photodeveloper, the 
    transfer belt or the fuser is 
    worn or defective. Load paper from a fresh package in the 
    paper tray.
     Avoid textured paper with rough finishes.
     Make sure the printer’s paper type and 
    paper weight settings match the type of 
    paper you are using.
     Replace photodeveloper (black alone or 
    all other colors at once), the transfer belt 
    or the fuser.
    SymptomCauseSolution
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    							Solving print quality problems
    146
    Troubleshooting
    Print too light  The Toner Darkness setting 
    is too light, RGB Brightness 
    is too bright, or RGB 
    Contrast is too high.
     You are using paper that 
    does not meet the printer 
    specifications.
    Color Saver is On.
     Toner is low.
     A toner cartridge is 
    defective or has been 
    installed in more than one 
    printer. Select a different Toner Darkness 
    setting, RGB Brightness setting, or RGB 
    Contrast setting from the printer driver 
    before sending the job to print.
     Perform a Color Adjust in the Quality 
    Menu.
     Load paper from a new package.
     Avoid textured paper with rough finishes.
     Make sure the paper you load in the 
    trays is not damp.
     Make sure the printer’s paper type and 
    paper weight settings match the type of 
    paper you are using.
     Turn Color Saver off.
     Replace the toner cartridge.
    Print too dark  The Toner Darkness setting 
    is too dark, RGB Brightness 
    is too dark, or RGB 
    Contrast is too high.
     A toner cartridge is 
    defective. Select a different Toner Darkness 
    setting, RGB Brightness setting, or RGB 
    Contrast setting from the printer driver 
    before sending the job to print.
     Replace the toner cartridge.
    Transparency print quality is poor
    (Print has inappropriate light or dark spots, 
    toner is smeared, horizontal or vertical light 
    bands appear, or color does not project.) You are using 
    transparencies that do not 
    meet the printer 
    specifications.
     The Paper Type setting for 
    the tray you are using is set 
    to something other than 
    Transparency. Use only transparencies recommended 
    by the printer manufacturer.
     Make sure the Paper Type setting is set 
    to Transparency.
    Toner fog or background shading appears 
    on the page A toner cartridge is 
    defective or installed 
    incorrectly.
     The transfer belt is worn or 
    defective.
     A photodeveloper is worn or 
    defective.
     The fuser is worn or 
    defective.
     Toner is in the paper path. Reinstall or replace the cartridge.
     Replace the transfer belt.
     Replace the photodeveloper (black 
    alone or all other colors at once).
     Replace the fuser.
     Call for service.
    Toner rubs off the paper easily when you 
    handle the sheets The Type setting is wrong 
    for the type of paper or 
    specialty media you are 
    using.
     The Weight setting is wrong 
    for the type of paper or 
    specialty media you are 
    using.
     The fuser is worn or 
    defective. Change Paper Type to match the paper 
    or specialty media you are using.
     Change Paper Weight from Plain to 
    CardStock (or other appropriate weight).
     Replace the fuser.
    Gray background  The Toner Darkness setting 
    is too dark.
     A toner cartridge is 
    defective. Select a different Toner Darkness setting 
    from the printer driver before sending the 
    job to print.
     Replace the toner cartridge.
    SymptomCauseSolution
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    							Solving print quality problems
    147
    Troubleshooting
    Uneven print density  A toner cartridge is 
    defective.
     A photodeveloper is worn or 
    defective.
     The transfer belt is worn or 
    defective. Replace the toner cartridge.
     Replace the photodeveloper (black 
    alone or all other colors at once).
     Replace the transfer belt.
    Characters have jagged or uneven edges A downloaded font is not 
    supported.If you are using downloaded fonts, verify 
    the fonts are supported by the printer, the 
    host computer, and the software 
    application.
    Ghost Images Toner is low.  Make sure the Paper Type setting is 
    correct for the paper or specialty media 
    you are using.
     Replace the toner cartridge.
    Clipped images
    (Some of the print is cut off on the sides, 
    top, or bottom of the paper.)Guides in the selected tray are 
    set for a different size paper 
    than what is loaded in the tray.Move the guides in the tray to the proper 
    positions for the size loaded.
    Incorrect margins  Guides in the selected tray 
    are set for a different size 
    paper than what is loaded 
    in the tray.
     Auto size sensing is set to 
    off, but you loaded a 
    different size paper in a tray. 
    For example, you inserted 
    A4 size paper into the 
    selected tray but did not set 
    the Paper Size to A4. Move the guides in the tray to the proper 
    positions for the size loaded.
     Set the Paper Size to match the media in 
    the tray.
    Skewed print
    (Print is inappropriately slanted.) Guides in the selected tray 
    are not in the correct 
    position for the paper size 
    loaded in the tray.
     You are using paper that 
    does not meet the printer 
    specifications. Move the guides in the tray to the proper 
    positions for the size loaded.
    See Media specifications.
    Blank pages  Packaging material has not 
    been removed from one or 
    more toner cartridges
     Toner is low.
     One or more toner 
    cartridges are defective or 
    empty. Remove the packaging material from the 
    appropriate toner cartridge
     Remove the toner cartridge by gripping 
    the handles with both hands. Shake the 
    cartridge back and forth and reinstall it.
     Replace the defective toner cartridges.
    SymptomCauseSolution
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    							Color quality information
    148
    Troubleshooting
    Color quality information
    This section helps you understand how operations available on the printer can be used to adjust and customize color 
    output.
    Quality Menu
    Selections available in the Quality Menu provide the user with multiple options that can adjust color characteristics of the 
    printer.
    Values marked by an asterisk (*) are the factory default settings. Values selected in the printer PostScript or PCL emulation 
    drivers for Windows will override printer settings.Solid color pages  A toner cartridge is 
    defective.
     Your printer requires 
    servicing. Replace the toner cartridge.
     Call for service.
    The paper curls badly once it prints and 
    exits to a bin The Type and Weight 
    settings are not appropriate 
    for the type of paper or 
    specialty media you are 
    using.
     The paper has been stored 
    in a high humidity 
    environment. Change Paper Type and Paper Weight 
    to match the paper or specialty media 
    loaded in the printer.
     Load paper from a fresh package.
     Store paper in its original wrapper until 
    you use it.
    See Storing paper.
    Menu itemPurposeVa l u e s
    Print ModeTo determine whether images are 
    printed in a monochrome 
    grayscale or in color.Color*
    Black Only
    Color 
    CorrectionTo adjust the printed color to 
    better match the colors of other 
    output devices or standard color 
    systems.
    Due to the differences between 
    additive and subtractive colors, 
    certain colors that appear on the 
    monitor are impossible to 
    duplicate on the printer.Auto* Applies different color conversion 
    tables to each object on the printed 
    page, depending on the type of object 
    and how the color for each object is 
    specified.
    Off No color correction is implemented.
    Manual Allows customization of the color 
    conversion tables applied to each 
    object on the printed page, depending 
    on the type of object and how the 
    color for each object is specified. 
    Customization is performed using the 
    selections available under the Manual 
    Color menu item.
    Print 
    ResolutionSelects the quality of printed 
    output.2400 IQ*
    Toner DarknessLighten or darkens printed output 
    and conserves toner.1 to 5 4* is the default setting.
    Select a lower number to lighten the 
    printed output or save toner.
    SymptomCauseSolution
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    							Quality Menu
    149
    Troubleshooting
    Color SaverTo conserve toner in graphics and 
    images yet maintain high quality 
    text. The amount of toner used to 
    print graphics and images is 
    reduced; however, text is printed 
    with default toner usage. If 
    selected, this setting overrides 
    Toner Darkness settings. Color 
    Saver is not supported in PPDS, 
    and partially supported by the 
    PCL emulation driver.On*
    Off
    RGB BrightnessTo assist in making brightness, 
    contrast, and saturation 
    adjustments to color output.
    These functions do not affect files 
    where CMYK color specifications 
    are being used. See Frequently 
    asked questions (FAQ) about 
    color printing for more 
    information on color 
    specifications.-6, -5, -4, -3, -2, -1, 0*, 
    1, 2, 3, 4, 5, 6-6 is maximum decrease
    6 is maximum increase
    0 is the default setting
    RGB Contrast0*, 1, 2, 3, 4, 5 0 is the default setting
    5 is maximum increase
    RGB Saturation0*, 1, 2, 3, 4, 5 0 is the default setting
    5 is maximum increase
    Color BalanceTo provide users with the ability to 
    make subtle color adjustments to 
    printed output by increasing or 
    decreasing the amount of toner 
    being used for each color plane 
    individually.Cyan -5, -4, -3, -2, -1, 0*, 1, 2, 3, 4, 5
    -5 is maximum decrease
    5 is maximum increase Magenta
    Ye l l o w
    Black
    Reset Defaults Sets values for Cyan, Magenta, 
    Yellow, and Black to 0 (zero).
    Color SamplesTo assist users in selecting colors 
    to be printed. Users can print 
    color samples pages for each of 
    the RGB and CMYK color 
    conversion tables used in the 
    printer.
    The color samples pages consist 
    of a series of colored boxes along 
    with the RGB or CMYK 
    combination that creates the color 
    observed for each particular box. 
    These pages can be useful in 
    helping users decide which RGB 
    or CMYK combinations to use in 
    their software applications to 
    create the desired printed color 
    output.
    Note:The printer Embedded Web 
    Server interface, which is only 
    available on network models, 
    offers users more flexibility. It lets 
    users access the printing of 
    Detailed Color Samples.sRGB Display Prints RGB samples using 
    sRGB Display color conversion tables.
    sRGB Vivid Prints RGB samples using 
    sRGB Vivid color conversion tables.
    Display — True Black Prints RGB samples using
    Display — True Black color conversion 
    tables.
    Vivid Prints RGB samples using Vivid color 
    conversion tables.
    Off—RGB Color conversion is implemented.
    US CMYK Prints CMYK samples using 
    US CMYK color conversion tables.
    Euro CMYK Prints CMYK samples using 
    Euro CMYK color conversion tables.
    Vivid CMYK Prints CMYK samples using 
    Vivid CMYK color conversion tables.
    Off—CMYK No color conversion is implemented.
    Menu itemPurposeVa l u e s
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    							Quality Menu
    150
    Troubleshooting
    Manual ColorTo let users customize the RGB or 
    CMYK color conversions applied 
    to each object on the printed 
    page. Color conversion of the data 
    specified using RGB 
    combinations can be customized 
    based on object type (text, 
    graphics, or image) through the 
    printer operator panel.RGB ImagesRGB Display*: Applies a color 
    conversion table to produce output 
    that approximates the colors 
    displayed on a computer monitor.
    sRGB Vivid: Increases color 
    saturation for the sRGB Display color 
    conversion table. Preferred for 
    business graphics and text.
    Display — True Black: Applies color 
    conversion table to produce output 
    that approximates the colors 
    displayed on a computer monitor 
    while using only black toner for neutral 
    gray colors.
    Vivid: Applies a color conversion 
    table that produces brighter, more 
    saturated colors.
    Off: No color conversion is 
    implemented.
    RGB TextsRGB Display
    sRGB Vivid*
    Display - True Black
    Vivid
    Off RGB Graphics
    CMYK Image
    CMYK Text
    CMYK Graphics US CMYK* (country/region-specific 
    factory default values): Applies a color 
    conversion table to approximate 
    SWOP color output.
    Euro CMYK* (country/region-specific 
    factory default values): Applies color 
    conversion table to approximate 
    EuroScale color output.
    Vivid CMYK: Increases color 
    saturation for the US CMYK color 
    conversion table.
    Off: No color conversion is 
    implemented.
    Enhance Fine 
    LinesA selection to enable a print mode 
    preferable for certain files 
    containing fine line detail, such as 
    architectural drawings, maps, 
    electronic circuit diagrams, and 
    flow charts.
    Note:Enhance Fine Lines is not a 
    menu item. This setting is only 
    available on the PCL emulation 
    driver or PostScript driver or on 
    the printer Embedded Web 
    Server.On In the driver, enable the check box.
    Off* In the driver, disable the check box.
    Menu itemPurposeVa l u e s
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