HP Designjet 4500 Printer series - Manual (Page 277)

Try changing to a heavier paper type: we recommend HP Heavyweight Coated Paper or HP
Productivity Photo Gloss for printing dense colors. See also Choose print quality settings.
The print smudges when touched
The black ink pigment can smudge when touched by a finger or pen. This is particularly noticeable
on the following materials: vellum, translucent bond, films, productivity photo paper, and natural
tracing paper.
To reduce the smudging:
● Try to print in an environment which is not too humid for the printer. See Environmental
specifications.
● Change pure black objects in your image to a dark color, such as dark brown, so that they will
be printed with colored inks instead of black ink.
● Use HP Heavyweight Coated Paper.
● Increase the drying time (see Change the drying time).
Ink marks on the paper
This problem may occur for several different reasons.
Smears on the front of coated paper
If a lot of ink is used on coated paper, the paper absorbs the ink quickly and expands. As the
printheads move over the paper, the printheads come into contact with the paper and the printed
image is smeared.
Whenever you notice this problem, you should cancel the printing job immediately. Press the Cancel
key and also cancel the job from your computer application. Otherwise the soaked paper may
damage the printheads.
ENWW The print smudges when touched 263
The problem is... (print
quality topics)