Make sure that the priority input tray is in place.
Decrease the print density setting through HP LaserJet Device Configuration. This decreases
the amount of background shading. See the product software Help.
Change the media to a lighter basis weight. See
Product media specifications
Check the printer’s environment. Very dry (low humidity) conditions can increase the amount
of background shading.
Install a new HP print cartridge. See
Installing a print cartridge
162 12 Troubleshooting printing problems