Print Quality
6-24
HP DesignJet 5000 and 5500 Series Printers Service Manual
Enrichment Issue
Issues Description
There can be some light color area fills that have two different (but
related) image quality issues at the border:
1 The initial part of the area fill has a grading from white to the
regular color of the area fill (~ 2-4mm high x 0-10mm long)
2 After this first grading, it may show a border darker than the rest of
the area fill, creating another type of grading, which is shorter, but
can appear along the entire border.
See the following image to better understand the explanation:
As it will be explained, both issues are related and have similarities:
The appearance of the issue depends highly on the selected
printmode (MaxQuality, Productivity or MaxSpeed) and the
medium and ink type loaded into the printer.
The darker border issue may show along the entire border, or
appear in some determined locations and disappear in others.
The direction of this grading is always in the printing direction.
This problem shows up much more in composite light colors and
unidirectional printmodes (when the printer lays ink only when
the carriage moves in one direction).
1. Initial Grading
2. Darker Border
