HP Laserjet p1606dn - Manual (Page 109)

Dropouts
● A single sheet of media might be defective. Try reprinting
the job.
● The media moisture content is uneven or the media has
moist spots on its surface. Try printing with new media.
● The media lot is bad. The manufacturing processes can
cause some areas to reject toner. Try a different type or
brand of media.
● Place the product in quiet mode, and send the print job
again. See
Quiet mode settings on page 59 .
● The print cartridge might be defective. Install a new
genuine HP print cartridge.
Vertical lines
The photosensitive drum inside the print cartridge has
probably been scratched. Install a new genuine HP print
cartridge.
Gray background
● Change the media to a lighter basis weight.
● Check the product's environment. Very dry (low humidity)
conditions can increase the amount of background
shading.
● The density setting might be too high. Adjust the density
setting.
● Install a new genuine HP print cartridge.
ENWW Solve image-quality problems 97