HP (Hewlett-Packard) 3020 User Manual

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Dropouts
A single sheet of media might be defective. Try reprinting the job.
The moisture content of the media is uneven or the media has moist spots on the surface.
Try printing on different media. See 
 for more information.
The media lot is bad. The manufacturing processes can cause some areas to reject toner.
Try a different type of media.
The print cartridge might be defective. See 
 for more
information.
For Windows printer drivers, check Type is: on the Paper tab or the Paper/Quality tab,
and make sure that it is set to the appropriate media. See 
For Macintosh printer drivers, check Type is: on the Paper/Quality tab or the Paper tab
(the Paper Type/Quality tab for some Macintosh drivers), and make sure that it is set to
the appropriate media. See 
Note
If these steps do not correct the problem, contact an HP-authorized dealer or service
representative. See the support flyer that came with your device for information about
contacting HP.
Vertical lines
Make sure that the priority input tray is in place.
The photosensitive drum inside the print cartridge might be scratched. Try installing a new
HP print cartridge. See the start guide for instructions.
ENWW
Print quality is unacceptable
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