HP Designjet T920 ePrinter series - Manual (Page 172)

1. Align the printhead. See Align the printhead on page 177 .
2. Reseat the printhead by removing and then reinserting it. See Remove the printhead on page 129 and
Insert the printhead on page 131 .
Lines are discontinuous
If your lines are broken in the following way:
1. Check that you are using appropriate print-quality settings. See Printing on page 62 .
2. When printing on uncoated paper in Fast mode, try loading the paper as Bright Bond.
3. Align the printhead. See Align the printhead on page 177 .
4. Reseat the printhead by removing and then reinserting it. See Remove the printhead on page 129 and
Insert the printhead on page 131 .
Lines are blurred
Humidity can cause ink to soak into the paper, making the lines blurred and fuzzy. Try the following:
1. Check that your environmental conditions (temperature, humidity) are suitable for high-quality printing.
See Environmental specifications on page 195 .
2. Check that the paper type selected in the front panel is the same as the paper type you are using. See
View information about the paper on page 56 .
3. Try changing to a heavier paper type, such as HP Heavyweight Coated Paper or HP Super Heavyweight
Plus Matte Paper.
4. Select a paper type that is slightly thinner than the paper you have loaded; this will persuade the printer
to use less ink. Here are some example paper types in ascending order of thickness: Plain Paper, Coated
Paper, Heavyweight Coated Paper, Super Heavyweight Plus Matte Paper.
5. If you are using photo paper, try changing to a different type of photo paper.
6. Align the printhead. See Align the printhead on page 177 .
164 Chapter 18 Troubleshooting print-quality issues ENWW