HP 4500DN manual Irregular, raised spots or stray toner, Banding

.

Irregular, raised spots or stray toner

Problem	Solution
Toner is smudged on the back of pages.	Toner collected on the transfer belt can cause
	smudging on the back of a page. Smudges
	commonly appear on the edges of pages after
	media size is changed. The belt is self-
	cleaning and the smudging will normally clear
	within a few pages. Print 5 to 10 pages to clear
	the smudge.
The printer recently had a media jam or the	Print 5 to 10 pages to clear any smearing.
printer fed multiple sheets of media.
Toner is smeared on the edge of the media.	Toner on the edge of the media is usually
	caused by toner collecting on paper guides.
	Inspect the paper guides and clean with a lint-
	free cloth if necessary.
You are refeeding paper that has already	Do not re-feed paper. Re-feeding paper
passed through the printer or through a copier.	contaminates the fuser, causing stray toner
	defects.
The fuser roller is dirty.	Print 5 to 10 pages to clean the fuser roller.

.

Banding

Problem	Solution
Dark and light bands appear in large areas of	If the problem persists, the imaging drum may
halftone areas.	be past its useful life. Print a configuration
	page to verify the remaining life of the imaging
	drum. Replace the imaging drum if necessary.
Consumable items may be beyond their useful	Print a configuration page to verify the
life.	remaining life of the consumable item. Replace
	any consumable items that are past their rated
	life.
Certain halftone patterns exaggerate banding.	Try a different halftone pattern.
.

158 Solving Problems with the Printer EN