Ink marks on the paper
This problem can occur for several different reasons.
Horizontal smears on the front of the paper
When a lot of ink is used on a paper-based material, the paper absorbs the ink quickly and expands. If the
paper is stiff and curled, near the end of the roll the leading edge of the paper may rise slightly in the print
area. As the printhead moves over the paper, it may come into contact with the paper and smear the printed
image.
Whenever you notice this problem, cancel the printing job immediately. Press on the front panel and also
cancel the job from your computer application. Soaked paper can damage the printhead.
Try the following suggestions to avoid this problem:
1. Increase the margins by relocating the image to the center of the page, either with your software or
with the front panel’s Move Paper option (see Move the paper on page 61). To prevent such smears
most effectively, the distance from the image to the leading edge of the paper should be at least 20 mm
(0.8 in).
2. Select a faster print mode: change from Best to Normal, or from Normal to Fast mode.
Other smears on the paper
The following suggestions may be used for all kinds of smears, including those on the front of the paper:
1. Check that the paper type you have loaded corresponds to the paper type selected in the front panel
and in your software. See View information about the paper on page 60.
2. Use a recommended paper type (see Order paper on page 162) and the correct print settings.
3. If using sheet paper, try rotating the sheet 90 degrees. The orientation of the paper fibers may affect
performance.
4. Try changing to a thicker paper type, such as HP Heavyweight Coated Paper or HP Super Heavyweight
Plus Matte Paper.
5. 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.
Black ink comes off when you touch the print
This problem may be caused by printing with matte black ink on photo paper. The printer will not use matte
black ink if it knows that the paper will not retain it. To be sure of avoiding matte black ink, you can select
Photo Gloss Paper as the paper type (in the Photo Paper category).
188 Chapter 20 Troubleshooting print-quality issues ENWW
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