HP Designjet Z3100 Photo Printer series - Manual (Page 174)

1. Check that you are using appropriate print-quality settings. See Printing on page 45 .
2. Reseat the printheads by removing them and then reinserting them. See Remove a printhead
on page 122 and Insert a printhead on page 125 .
3. Align the printheads. See Align the printheads on page 182 .
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 206 .
2. Check that the paper type selected in the front panel is the same as the paper type you are using.
To check on the front panel, use the
View loaded paper key.
3. Try changing to a heavier paper type, such as HP Heavyweight Coated Paper, HP Super
Heavyweight Plus Matte Paper, or Digital Fine Art 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, Fine Art Paper, Super Heavyweight Plus Matte
Paper, Thick Fine Art Paper (>250 g/m²).
5. If you are using glossy paper, try changing to a different type of glossy paper.
6. Select the custom print-quality options in the driver dialog (Mac OS Print dialog), and turn on the
More passes option.
7. Align the printheads. See Align the printheads on page 182 .
164 Chapter 13 Troubleshooting print-quality issues ENWW
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