HP Designjet 4500 Printer series - Manual (Page 280)

● The borders of colored blocks are wrongly colored.
To correct this kind of problem:
1. Align the printheads. See Align the printheads.
2. Check that you are using appropriate print quality settings. See Choose print quality settings.
Lines are discontinuous
If your lines are broken in the following way:
1. Check that you are using appropriate print quality settings. See Choose print quality settings.
2. You are more likely to get good vertical lines with roll paper than with sheet paper. If you must
use sheet paper, set the print quality to Best.
3. Consider changing to a heavier paper type, such as HP Heavyweight Coated Paper or HP
Productivity Photo Gloss. SeeChoose print quality settings.
4. Align the printheads. See Align the printheads.
Lines are blurred (ink bleeds from lines)
If you see that the ink is soaking into the paper, making the lines blurred and fuzzy, this could be
because of humidity in the air. Try the following:
1. Check that your environmental conditions (temperature, humidity) are suitable for high-quality
printing. See Environmental specifications.
2. Try changing to a heavier paper type, such as HP Heavyweight Coated Paper or HP
Productivity Photo Gloss. SeeChoose print quality settings.
NOTE Glossy photo paper types are especially difficult to dry. Take extra care with them.
266 Chapter 18 The problem is... (print quality topics) ENWW
The problem is... (print
quality topics)