Vertical lines

The photosensitive drum inside the print cartridge has probably been scratched. Install a new HP print cartridge.

Gray background

Change the media to a lighter basis weight.

Check the printer'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 HP print cartridge.

Toner smear

If toner smears appear on the leading edge of the media, the media guides might be dirty. Wipe the media guides with a dry, lint-free cloth.

Check the media type and quality.

The fuser temperature might be too low. In your printer driver, make sure the appropriate media type is selected.

Try installing a new HP print cartridge.

Loose toner

The fuser temperature might be too low. In your printer driver, make sure the appropriate media type is selected.

Clean the inside of the printer.

Check the media type and quality.

In your printer driver, make sure the appropriate media type is selected.

Plug the printer directly into an AC outlet instead of into a power strip.

ENWW

Solve print-quality problems 97