HP DesignJet T850 DesignJet T850 Printer Series DesignJet T950 Printer SeriesU - Page 130

Print is scuffed or scratched, Ink marks on the paper, Horizontal smears on the front of coated paper

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1. Check that the paper type you have loaded corresponds to the paper type selected in the control panel and in your software. If you have doubts about the paper selection, see Paper type is not in the driver or control panel on page 104. 2. Try changing to a thicker paper type, such as HP Heavyweight Coated Paper. 3. Select a lower print quality (such as Fast); the printer will then use less ink. 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. Print is scuffed or scratched Pigmented ink can be scuffed or scratched when touched by a finger, a pen or some other object. This is particularly noticeable on coated paper. Glossy paper may be extremely sensitive to the bin or to anything else that it contacts soon after printing, depending on the amount of ink used and the environmental conditions at the time of printing. To reduce the risk of scuffs and scratches: ● Handle prints carefully. ● Avoid stacking prints on top of each other. ● Increase the drying time. At the control panel, tap the Menu icon, then Settings Dry Time. > General > Extra Ink marks on the paper This problem can occur for several different reasons. Horizontal smears on the front of coated paper If a lot of ink is used on plain or coated paper, the paper absorbs the ink quickly and expands. As the printhead moves over the paper, the printhead may come into contact with the paper and smear the printed image. Print is scuffed or scratched 121

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1.
Check that the paper type you have loaded corresponds to the paper type selected in the control
panel and in your software. If you have doubts about the paper selection, see
Paper type is not in
the driver or control panel
on page
104
.
2.
Try changing to a thicker paper type, such as HP Heavyweight Coated Paper.
3.
Select a lower print quality (such as
Fast
); the printer will then use less ink.
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.
Print is scuffed or scratched
Pigmented ink can be scuffed or scratched when touched by a finger, a pen or some other object. This is
particularly noticeable on coated paper.
Glossy paper may be extremely sensitive to the bin or to anything else that it contacts soon after
printing, depending on the amount of ink used and the environmental conditions at the time of printing.
To reduce the risk of scuffs and scratches:
●
Handle prints carefully.
●
Avoid stacking prints on top of each other.
●
Increase the drying time. At the control panel, tap the
Menu
icon, then
Settings
>
General
>
Extra
Dry Time
.
Ink marks on the paper
This problem can occur for several different reasons.
Horizontal smears on the front of coated paper
If a lot of ink is used on plain or coated paper, the paper absorbs the ink quickly and expands. As the
printhead moves over the paper, the printhead may come into contact with the paper and smear the
printed image.
Print is scuffed or scratched
121