Horizontal dark lines
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Horizontal dark lines

Do horizontal dark lines appear randomly in your prints? Check the paper settings from the Printing Preferences or Print dialog.
  • Before solving the problem, print the Print Quality Test Pages. From the control panel, navigate to
    Settings
    >
    Troubleshooting
    >
    Print Quality Test Pages
    . For non-touch-screen printer models, press to navigate through the settings.
  • If horizontal dark lines keep appearing on the prints, then see the “Repeating defects” topic.
  1. Perform the following tests:
    1. Depending on your operating system, specify the paper type from the Printing Preferences or Print dialog.
      • Make sure that the setting matches the paper loaded.
      • You can also change the setting on the printer control panel. Navigate to
        Settings
        >
        Paper
        >
        Tray Configuration
        >
        Paper Size/Type
        .
    2. Print the document.
    Do dark lines appear on prints?
    • Yes
      :
      Go to the next step.
    • No
      :
      The problem is solved.
  2. Perform the following tests:
    1. Load paper from a fresh package.
      Paper absorbs moisture due to high humidity. Store paper in its original wrapper until you use it.
    2. Print the document.
    Do dark lines appear on prints?
    • Yes
      :
      Go to the next step.
    • No
      :
      The problem is solved.
  3. Perform the following tests:
    1. Open the front door, and then firmly push it down.
    2. Pull out the print cartridge tray.
    3. Remove, and then insert the print cartridges.
    4. Insert the print cartridge tray, and then close the door.
    5. Print the document.
    Do dark lines appear on prints?
    • Yes
      :
      Go to the next step.
    • No
      :
      The problem is solved.
  4. Perform the following tests:
    1. Perform Color Adjust.
      From the control panel, navigate to:
      Settings
      >
      Print
      >
      Quality
      >
      Advanced Imaging
      >
      Color Adjust
    2. Print the document.
    Do dark lines appear on prints?

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