You can also see some banding in patterns 4, 9, 10, and 11, indicating that the printheads need to be cleaned.
You can launch printhead cleaning from the front panel by touching , then Image Quality Maintenance >
Clean printheads.
Streaks
Looking at patterns A, B, C, G and H, you may nd vertical streaks as in the examples shown below, if the
printer’s printheads are not working correctly. Replacing the printhead for the color showing the streaks may
solve the problem.
Grain
Looking at patterns A, B, and C, you may nd problems in the printer’s paper advance or the printheads that
cause visible grain in area lls. The following examples show this defect: original on the left, printed image on
the right.
ENWW The scanner diagnostic plot 171
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