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HP DesignJet 5000 Series Printers Service Manual
Overall Print Quality Test
This test pattern checks for banding in the print mode and media
that is being used.
What is Banding?
Banding is when you see repetitive horizontal bands within the
printed image (these may appear as light or dark bands).
This array of colored stripes is designed to check for certain defects
with the Printer. It should not be used to check for color consistency
or accuracy. The test pattern is printed with the six Printhead colors;
Light Cyan, Light Magenta, Yellow, Cyan, Magenta and Black.
Each pair of colors is printed by only one Printhead; one is the full
color and the other is a lighter shade to help you detect any banding.
Solving the Banding Problem
The main causes of banding are:
n Printhead problems.
n Use of Non-HP media.
n Incorrect media type selected in the front panel.
n Media advance problems.
Banding Caused by Printhead Problems
Banding caused by problems with the Printhead(s) will be
highlighted in the Diagnostic Print because the banding is not in all
of the colors, the colored strip that has banding was caused by the
same colored Printhead.
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