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ENWW Improving print quality 85
Improving print quality
This section provides information about identifying and correcting print defects.
Light print or faded
Toner specks
Dropouts
Note If these steps do not correct the problem, contact an HP-authorized dealer or service representative.
Vertical lines
● The toner supply is low. See Redistributing toner for more
information.
● The media might not meet Hewlett-Packard’s media
specifications (for example, the media is too moist or too rough).
See Printer media specifications for more information.
● If the whole page is light, the print density adjustment is too light
or EconoMode might be turned on. Adjust the print density and
disable EconoMode in the printer properties. See Saving toner
for more information.
● The media might not meet Hewlett-Packard’s media
specifications (for example, the media is too moist or too rough).
See Printer media specifications
for more information.
● The printer might need to be cleaned. See Cleaning the printer
or Cleaning the printer media path
for instructions.
● A single sheet of media might be defective. Try reprinting the job.
● The media’s moisture content is uneven or the media has moist
spots on its surface. Try printing with new media. See Printer
media specifications for more information.
● The media lot is bad. The manufacturing processes can cause
some areas to reject toner. Try a different type or brand of media.
● The print cartridge might be defective. See Changing the print
cartridge for more information.
● Make sure that the priority input tray is in place.
● The photosensitive drum inside the print cartridge has probably
been scratched. Install a new HP print cartridge. See Changing
the print cartridge for instructions.