HP LaserJet P1000 P1500 dl dropout 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.

The print cartridge might be defective.
HP LaserJet P1000 P1500 Dropouts