Cause:

Toner fragments have slipped through the cleaning web.

This may occur if:

  • Duplex printing

  • Printing on uncoated (especially rough-textured) paper

  • Halftone printing

Note

  • To adjust the following settings, pre-register the type of paper in use as a custom paper. For details about registering custom papers, see "Specifying a Custom Paper", Preparation.