6.
Review the Cyan, Magenta, Yellow, and Black Boxes along with other content on the diagnostics page.
7.
Clean the printheads, if the diagnostic page shows steaks or missing portions of the color and black
boxes.
To clean the printheads
CAUTION:
Clean the printheads only when necessary. Unnecessary cleaning wastes ink and shortens
the life of the printheads.
a.
Load letter or A4 unused plain white paper into the input tray.
b.
Open the printer software. For more information, see
Open the HP printer software (Windows)
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Chapter 6 Solve a problem
ENWW