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.

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.

If characters are improperly formed, producing a wavy effect, the printer might need service. Print a configuration page. If the characters are improperly formed, contact an HP-authorized dealer or service representative.

Page skew

Make sure that the media is loaded correctly and the media guides are not too tight or too loose against the media stack.

The input bin might be too full.

Check the media type and quality.

Curl or wave

Check the media type and quality. Both high temperature and high humidity cause media to curl.

The media might have been in the input tray too long. Turn over the stack of media in the tray. Also, try rotating the media 180° in the input tray.

Open the straight-through output door and try printing straight through.

The fuser temperature might be too high. In your printer driver, make sure the appropriate media type is selected. If the problem persists, select a media type that uses a

98 Chapter 10 Solve problems

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