HP Designjet T790 and T1300 ePrinter Series - Using your printer

1. The problem may be inherent in the image. Try to improve the image with the application you are
using to edit it.
2. Check that you are using appropriate print-quality settings. See
Printing on page 52.
3. Select the custom print-quality options in the driver dialog, and turn on the Maximum detail
option (if available).
Lines print double or in the wrong colors
This problem can have various visible symptoms:
●
Colored lines are printed double, in different colors.
●
The borders of colored blocks are wrongly colored.
To correct this kind of problem:
1. Reseat the printheads by removing them and then reinserting them. See
Remove a printhead
on page 129 and Insert a printhead on page 132.
2. Align the printheads. See
Align the printheads on page 186.
Lines are discontinuous
If your lines are broken in the following way:
ENWW
Lines print double or in the wrong colors
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