Problem Cause Solution
Dropouts appear. A single sheet of print media might be
defective.
Try reprinting the job.
The moisture content of the paper is
uneven or the paper has moist spots on
its surface.
Try different paper, such as high-quality
paper that is intended for color laser
printers.
The paper lot is flawed. The
manufacturing processes can cause
some areas to reject toner.
Try different paper, such as high-quality
paper that is intended for color laser
printers.
Vertical streaks or bands appear on the
page.
One or more print cartridges might be low
or defective. If you are using non-HP
print cartridges, no messages appear on
the device control panel or in the
HP Toolbox.
Replace any low print cartridges.
The amount of background toner
shading becomes unacceptable.
The media might not meet HP
specifications.
Use a different paper with a lighter basis
weight.
Very dry (low humidity) conditions can
increase the amount of background
shading.
Check the device environment.
One or more print cartridges might be
low. If you are using non-HP print
cartridges, no messages appear on the
device control panel or in the
HP Toolbox.
Replace any low print cartridges.
Toner smears appear on the media. The media might not meet HP
specifications.
Use media that meets HP specifications.
If toner smears appear on the leading
edge of the paper, the media guides are
dirty, or debris has accumulated in the
print path.
Clean the media guides and the paper
path.
86 Chapter 8 Problem solving ENWW
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