Random "powdered" dots appear, creating a dirty background. The background may be partially or completely stained.

Completely stained background
Partially stained background

Cause:

This may occur because of wearing of the developer, drum unit, or drum charge unit.

Solution:

  1. If a message prompting replacement of a unit has appeared, replace the unit.
  2. In the Machine: Image Quality group on the Adjustment Settings for Skilled Operators menu, select Adjust Image Density and execute Image Density Adjustment: Manual Execute. (SP3-011-002: Manual ProCon :Ex Density Adjustment)
  3. Print the image. Is the problem resolved?

    Yes

    Finished!

    No

    On the machine operation panel: Maintenance > Adjustment Settings for Skilled Operators > Execute Process Initial Setting. (SP3-020-001: Process Setup :Ex Execute: ALL)

  4. If the problem persists, consult the product specialist.