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Print Quality
6-9
HP DesignJet 5000 Series Printers Service Manual
In the following example, there is a problem in the Magenta
Printhead. There will be clear repetitive bands (perhaps white) in the
magenta column.
NOTE The Printer has automatic procedures to hide many Printhead
defects. This type of problem affects print quality mostly in
Productivity and Max. Speed modes. If you use Max. Quality
print mode, banding caused by a malfunctioning Printhead may
be “hidden” and image quality may not be affected.
1 Perform Printhead Recovery ⇒ Page 6-15.
2 If there is no improvement after Printhead Recovery, replace the
failing Printhead.
Banding Caused by Media Advance Problems
Another type of banding is caused by an inaccurate media advance.
In this case there will be banding (horizontal repetitive bands along
the test pattern) in all the color columns.
The bands can appear as dark bands, due to a shorter advance of the
roller which causes an overlap, or lighter bands due to a longer
advance causing spaces.
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