Loose toner

Clean the inside of the device. See Clean the device on page 47.

Check the media type and quality. See Supported paper and other media on page 21.

Try installing a new HP print cartridge. See Replace the print cartridge on page 40].

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

Plug the device directly into an AC outlet instead of into a power strip or surge protector.

Vertical repetitive defects

The print cartridge might be damaged. If a repetitive mark occurs at the same spot on the page, install a new

HP print cartridge. See Replace the print cartridge on page 40.

The internal parts might have toner on them. If the defects occur on the back of the page, the problem will probably correct itself after a few more printed pages.

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

Misformed characters

If characters are improperly formed, producing hollow images, the media stock might be too slick. Try a different media. See Supported paper and other media

on page 21.

If characters are improperly formed, producing a wavy effect, the device might need service. Print a configuration page. If the characters are improperly formed, contact an HP-authorized dealer or service representative. See Contact HP support on page 62.

ENWW

Improve print quality 71