HP Designjet 4520 Printer series - Manual (Page 130)

Banding
Banding has occurred when you see repetitive horizontal bands within the printed image. They can
appear as light bands:
or dark bands:
or as a more gradual wave effect:
Horizontal bands across strips of one color only
If a printhead is faulty, you will see horizontal bands across strips of one color only; or at least the
horizontal bands will be much more noticeable in one color than in the others.
NOTE: Banding in the green strips is more difficult to see; and it may be caused by a yellow printhead
or by a cyan printhead. If you see banding only in the green strip, it is caused by a yellow printhead; if
you see banding in the green and cyan strips, it is caused by a cyan printhead.
120 Chapter 12 How do I... (Image Diagnostics Print topics) ENWW
Diagnostic
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