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Brother DCP 8020 User Manual

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    							TROUBLESHOOTING AND ROUTINE MAINTENANCE   14 - 16
    Black toner marks across 
    the pageThe drum unit may be damaged. Put in a new drum unit. (See Replacing 
    the drum unit on page 14-30.)
    Make sure that you use paper that meets our specifications. (See About 
    paper on page 2-1.)
    If you use label sheets for laser printers, the glue from the sheets may 
    sometimes stick to the OPC drum surface. Clean the drum unit. (See 
    Cleaning the drum unit on page 14-23.)
    Do not use paper that has clips or staples because they will scratch the 
    surface of the drum.
    If the unpacked drum unit is in direct sunlight or room light, the unit may 
    be damaged.
    White lines across the pageMake sure that you use paper that meets our specifications. A rough 
    surfaced paper or thick print media can cause the problem.
    Make sure that you select the appropriate media type in the printer 
    driver. 
    The problem may disappear by itself. Try printing multiple pages to clear 
    this problem, especially if the printer has not been used for a long time.
    The drum unit may be damaged. Put in a new drum unit. (See Replacing 
    the drum unit
     on page 14-30.)
    Li ne s across  the pa geClean the inside of the printer and the primary corona wire in the drum 
    unit. (See Cleaning the drum unit on page 14-23.)
    The drum unit may be damaged. Put in a new drum unit. (See Replacing 
    the drum unit on page 14-30.)
    Black lines down the page
    Printed pages have toner 
    stains down the page.Clean the primary corona wire of the drum unit.
    Make sure the primary corona wire cleaner is at the home position (
    ▲). 
    The drum unit may be damaged. Install a new drum unit. (See Replacing 
    the drum unit on page 14-30.)
    The toner cartridge may be damaged. Put in a new toner cartridge. (See 
    Replacing the toner cartridge on page 14-24.) Make sure that a torn 
    piece of paper is not inside the printer covering the scanner window.
    The fixing unit may be smudged. Call Customer Service.
    White lines down the pageYou may clear the problem by wiping the scanner window with a soft 
    cloth. (See Cleaning the printer on page 14-22.)
    The toner cartridge may be damaged. Put in a new toner cartridge. (See 
    Replacing the toner cartridge
     on page 14-24.)
    Page skewedMake sure the paper or other print media is loaded properly in the paper 
    tray and that the guides are not too tight or too loose against the paper 
    stack.
    Set the paper guides correctly.
    If you are using the manual feed tray (or the multi-purpose tray). (See 
    How to load paper on page 2-5.)
    The paper tray may be too full.
    Check the paper type and quality. (See About paper on page 2-1.)
    Examples of poor print 
    qual ityRecommendation
    ABCDEFGH
    abcdefghijk
    ABCD
    abcde
    01234
    ABCDEFGH
    abcdefghijk
    ABCD
    abcde
    01234
    ABCDEFGH
    abcdefghijk
    ABCD
    abcde
    01234
    ABCDEFGH
    abcdefghijk
    ABCD
    abcde
    01234
    ABCDEFGH
    abcdefghijk
    ABCD
    abcde
    01234
    A
    B
    C
    D
    E
    F
    G
    H
    ab
    cdefg
    h
    ijk
    ABCD
    abcde
    01234
     
    						
    							14 - 17   TROUBLESHOOTING AND ROUTINE MAINTENANCE
    Curl or waveCheck the paper type and quality. High temperatures and high humidity 
    will cause paper to curl.
    If you don’t use the printer very often, the paper may have been in the 
    paper tray too long. Turn over the stack of paper in the paper tray. Also, 
    try fanning the paper stack and then rotating the paper 180° in the paper 
    tray.
    Try printing using the straight-through output path. (See How to load 
    paper on page 2-5.)
    Wrinkles or creasesMake sure that paper is loaded properly.
    Check the paper type and quality. (See About paper on page 2-1.)
    Try printing using the straight-through output path. (See How to load 
    paper on page 2-5.)
    Turn over the stack of paper in the tray or try rotating the paper 180° in 
    the input tray.
    The drum unit is a consumable item and it is necessary to 
    replace it periodically.
    Examples of poor print 
    qualityRecommendation
    B DEFGH
    abc efghijk
    ACD
    bcde
    134
     
    						
    							TROUBLESHOOTING AND ROUTINE MAINTENANCE   14 - 18
    Packing and shipping the DCP
    Whenever you transport the DCP, use the packing materials that 
    came with your machine. If you do not pack the DCP correctly, you 
    may void your warranty.
    1Turn the DCP power switch off.
    2Unplug the DCP from the AC outlet.
    Lock the Scanner Lock
    3Push the Scanner Lock Lever up to lock the scanner. This lever 
    is located on the left of the scanner glass.
    Caution
    Damage caused to your DCP by failure to lock the scanner before 
    moving and shipping may void your warranty.
    4Open the front cover.
    Scanner Lock Lever
     
    						
    							14 - 19   TROUBLESHOOTING AND ROUTINE MAINTENANCE
    5Remove the drum unit and toner cartridge assembly. Leave the 
    toner cartridge installed in the drum unit.
    6Place the drum unit and toner 
    cartridge assembly into the plastic bag 
    and seal the bag.
    7Close the front cover. Fold down the face-down output tray flap.
    8Wrap the DCP in the plastic bag 
    and place it in the original carton 
    with the original packing 
    material.
     
    						
    							TROUBLESHOOTING AND ROUTINE MAINTENANCE   14 - 20
    9Pack the drum unit and toner cartridge assembly, AC cord and 
    printed materials in the original carton as shown below: 
    10Close the carton and tape it shut.
    If you are returning the DCP to Brother as part of the Exchange 
    Service, pack only
     the DCP. Keep all separate parts to use with 
    your ‘Exchange’ machine.
     
    						
    							14 - 21   TROUBLESHOOTING AND ROUTINE MAINTENANCE
    Routine maintenance
    Cleaning the scanner
    Turn the DCP power switch off and lift the document cover. Clean the 
    scanner glass and glass strip with dry cloth and the white film with 
    isopropyl alcohol on a lint free cloth.
    If the screen still
     displays a scanner error, call Brother Customer 
    Service for assistance at 1-800-284-4329 (in USA), 
    1-877-BROTHER (in Canada), 
    or (514) 685-6464 (in Montreal).
    White Film
    Document Cover
    Glass strip
    White film
     
    						
    							TROUBLESHOOTING AND ROUTINE MAINTENANCE   14 - 22
    Cleaning the printer
    Caution
    ■Do not use isopropyl alcohol to remove dirt from the control 
    panel. It may crack the panel.
    ■Do not
     use isopropyl alcohol to clean the laser scanner window 
    or toner sensor.
    ■Do not
     touch the scanner window with your finger.
    ■The drum unit contains toner, so handle it carefully. If toner 
    scatters and your hands or clothes get dirty, immediately wipe or 
    wash it off with cold water.
    1Turn the DCP power switch off and open the front cover.
    2Remove the drum unit and toner cartridge assembly.
    WARNING
    Just after you have used the DCP, some internal parts of the 
    machine are extremely HOT! When you open the front cover of the 
    DCP, never touch the shaded parts shown in the diagram below.
    3Gently clean the scanner window by wiping it with a clean soft 
    dry cloth. Do not
     use isoproply alcohol.
    Front view
    HOT!
    Laser Scanner Window
     
    						
    							14 - 23   TROUBLESHOOTING AND ROUTINE MAINTENANCE
    Cleaning the drum unit
    We recommend placing the drum unit and toner cartridge assembly 
    on a cloth or large disposable paper to avoid spilling and scattering 
    toner.
    1Clean the primary corona wire inside the drum unit by gently 
    sliding the blue tab from right to left several times.
    2Return the blue tab and snap it into the Home position (▼). 
    Caution
    If the blue tab is not at Home position (▼), printed pages may have 
    vertical stripes.
    3Reinstall the drum unit and toner cartridge assembly into the 
    DCP.
    (See Replacing the drum unit on page 14-30.)
    4Close the front cover.
    5Plug in the power cord.
    Corona Wire Tab
    Home Position(▼)
     
    						
    							TROUBLESHOOTING AND ROUTINE MAINTENANCE   14 - 24
    Replacing the toner cartridge
    The DCP can print up to 6,500 pages using a high yield toner 
    cartridge. When the toner cartridge is running low, the LCD shows 
    Toner Low. The DCP is supplied with a standard toner cartridge 
    that must be replaced after approximately 3,300 pages. Actual page 
    count will vary depending on your average type of original (i.e., 
    standard letter, detailed graphics).
    Discard the used toner cartridge according to local regulations, 
    keeping it separate from domestic waste. Be sure to seal the toner 
    cartridge tightly so toner powder does not spill out of the cartridge. If 
    you have questions, call your local waste disposal office. 
    We recommend that you clean the DCP when you replace the toner 
    cartridge.
    It is a good idea to keep a new toner cartridge ready for use 
    when you see the 
    Toner Low warning.
     
    						
    							14 - 25   TROUBLESHOOTING AND ROUTINE MAINTENANCE
    How to replace the toner cartridge
    WARNING
    Just after you use the DCP, some internal parts of the machine will 
    be extremely HOT! So, never touch the shaded parts shown in the 
    illustration.
    1Open the front cover and pull out the drum unit.
    HOT!
     
    						
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