HP 510 - Manual (Page 82)

Color consistency problems
•
Some paper may discolor or change with age. Check that your paper is fresh and has been stored correctly.
• If the environmental conditions you are printing in change rapidly, you may see changes in the color
consistency. By reducing the time the print stays in extreme environmental conditions after being printed
(especially very high humidity) you can reduce the color consistency problems.
• There may be color changes between images printed on your printer and other types of HP Designjet printers.
This is quite normal because the other printers use different inks.
Long-term color bleeding (glossy paper)
High ambient humidity at your location could cause the colors to bleed into the paper making the lines fuzzy and
bleary.
•
Change the paper that you are printing with or remove the printer from the high humidity conditions.