HP 4500 DN manual Vertical lines or streaks, Vertical bands or very dark backgrounds

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Vertical lines or streaks

Problem	Solution
White lines or streaks appear only in	Print several configuration pages.
the black areas of print.	The lines or streaks should clear
	within a few pages. Try reprinting
	your print job. If the problem
	persists, replace the black toner
	cartridge.
White lines or streaks appear only in	Print several configuration pages.
a particular color.	The lines or streaks should clear
	within a few pages. Try reprinting
	your print job. If the problem
	persists, replace the toner cartridge
	for the color with the lines or streaks.

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Vertical bands or very dark backgrounds

Problem	Solution
Vertical colored bands or dark black	If the problem persists after 10
or brown backgrounds appear on	pages, print out a configuration
the page.	page to verify the remaining life of
	the imaging drum. Replace the
	imaging drum if necessary.

156 Solving Problems with the Printer EN