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Dropouts
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A single sheet of media might be defective. Try reprinting
the job.
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The media moisture content is uneven or the media has
moist spots on its surface. Try printing with new media.
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The media lot is bad. The manufacturing processes can
cause some areas to reject toner. Try a different type or
brand of media.
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The print cartridge might be defective. Install a new
genuine HP print cartridge.
Vertical lines
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Toner might be on the photosensitive drum. Print a few
more pages to see if the problem might correct itself.
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The photosensitive drum inside the print cartridge has
probably been scratched. Install a new genuine HP print
cartridge.
Gray background
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Change the media to a lighter basis weight.
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Check the product environment. Very dry (low humidity)
conditions can increase the amount of background
shading.
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The density setting might be too high. Adjust the density
setting. See
Change print density on page 86
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Install a new genuine HP print cartridge.
Toner smear
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If toner smears appear on the leading edge of the media,
the media guides might be dirty. Wipe the media guides
with a dry, lint-free cloth.
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Check the media type and quality.
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The fuser temperature might be too low. In the printer
driver, make sure the appropriate media type is selected.
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Try installing a new genuine HP print cartridge.
ENWW Solve image-quality problems 83