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Lexmark C2535

Lexmark C2535

Troubleshooting vertical streaks

Issue description

Visible dark or light vertical lines, streaks, or voids appear on the paper.

Review the following print defect samples for examples of the dark and light vertical lines.

Light vertical lines

Dark vertical lines


  1. Did this occur during printing or scanning/copying?

  2. Print the following printer internal pages. (User's Guide provides instructions for navigating through the printer menus.)

    • Print Defects Guide
    • Menu Settings Page
  3. Check the levels of the consumable supplies on the Menu Settings Page (User's Guide provides instructions for replacing supplies).

  4. If the supply levels are normal, please refer to KB topic “Cleaning the printhead lens“.

  5. Using the Print Defect Guide, check to see;

    • If the vertical lines appear in one color, replace the affected developer unit and order the photoconductor unit.
    • If the vertical lines appear across multiple colors, replace the Imaging Kit.


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