Horizontal white lines
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  4. Troubleshoot a problem
  5. Printing problems
  6. Print quality is poor
  7. Horizontal white lines

Horizontal white lines

Stop getting horizontal white lines in your prints. Match the paper settings and use the correct paper type.
  • Before solving the problem, print the Print Quality Test Pages. From the home screen, touch
    Settings
    >
    Troubleshooting
    >
    Print Quality Test Pages
    .
  • If horizontal white 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 in the tray.
      • You can also change the setting on the printer control panel. From the home screen, touch
        Settings
        >
        Paper
        >
        Tray Configuration
        >
        Paper Size/Type
        .
    2. Print the document.
    Do horizontal white lines appear on prints?
    • Yes
      :
      Go to the next step.
    • No
      :
      The problem is solved.
  2. Perform the following tests:
    1. Load the specified paper source with the recommended paper type.
    2. Print the document.
    Do horizontal white lines appear on prints?
    • Yes
      :
      Go to the next step.
    • No
      :
      The problem is solved.
  3. Perform the following tests:
    1. Remove the printhead wiper, and then clean the printhead lenses.
    2. Print the document.
    Do horizontal dark lines appear on prints?
    • Yes
      :
      Go to the next step.
    • No
      :
      The problem is solved.
  4. Perform the following tests:
    1. Remove the photoconductor units.
      Do not expose the photoconductor units to direct light. Extended exposure to light may cause print quality problems.
      Do not touch the photoconductor drums. Doing so may affect the quality of future print jobs.
    2. Insert the photoconductor units.
    3. Print the document.
    Do horizontal white lines appear on prints?

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