Cause:

This may occur if:

  • Using coated paper

  • Printing black half-tone images

  • Printing at high temperature and humidity

  • Toner is deteriorated.

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.

  • When using matt coated paper, spots may appear due to the uneven matt coat thickness.

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