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Humidity can cause ink to soak into the paper, making the lines look blurred and fuzzy. Try the following
remedies:
1. Make sure that your environmental conditions (temperature, humidity) are suitable for high-quality
printing. See
Environmental specifications on page 216.
2. Check that the paper type that you select on the front panel is the same as the paper type that you are
using. To check, select the
icon from the printer's front panel, and then select View loaded paper.
3. Try changing to a heavier paper type, such as HP Heavyweight Coated Paper, HP Super Heavyweight
Coated Paper, or Digital Fine Art paper.
4. If you are using glossy paper, try changing to a different type of glossy paper.
5. Align the printheads. See
Align the printheads on page 71.
Lines are slightly warped
The paper itself might be warped. This can happen if it has been used or stored in an extreme environment.
See
Environmental specifications on page 216.
Dark or light horizontal lines across the image (banding)
Try the following remedies if your printed image suffers from added horizontal lines as shown (the color may
vary):
1. Make sure that the paper type you have loaded corresponds to the paper type that you select on the
front panel and in your software.
2. Make sure that you are using appropriate print-quality settings for your purposes. See
Select print
quality on page 83. In some cases, you can overcome a print-quality problem merely by selecting a
higher print-quality level. For instance, if you have set the print-quality slider to Fast, try setting it to
Best. If you change the print-quality settings, reprint your job if the problem has been solved.
3. Print the Image Diagnostics Print. See
The Image Diagnostics Print on page 72.
ENWW Lines are slightly warped 157