HP Enterprise CP5525 manual Execute the Clean Laser Glass, Item in the Calibration/Cleaning

Problem	Sample	Cause	Solution
White spots appear in an image		Poor conductivity caused by	Clean the static eliminator.
		dirt on the static eliminator.
		The primary transfer roller is	Replace the ITB.
		deformed or has deteriorated.
		The secondary transfer roller	Replace the secondary-transfer-
		is deformed or has	roller.
		deteriorated.
The back of the page is dirty.		The secondary transfer roller	Replace the secondary transfer
		is dirty.	roller.
		The fuser inlet guide or	Clean the dirty parts. If the dirt does
		separation guide is dirty.	not come off, replace the guide.
		The pressure roller is dirty.	Run the cleaning page several times.
			If the dirt does not come off, install a
			fuser cleaning kit. If the issue
			persists, replace the fuser.

Vertical streaks or bands appear on the page.

Scratches are present on the	Replace the print cartridge of the
circumference of the	color that matches the defect.
photosensitive drum.
Scratches are present on the	Replace the fuser.
circumference of the fuser
roller.

	Scratches are present on the	Replace the ITB.
	circumference of the ITB.
	The ITB drive roller is
	deformed or has deteriorated.
	The ITB cleaning mechanism is
	malfunctioning.
Vertical white lines appear in a	The laser beam window is	Execute the Clean Laser Glass
particular color.	dirty.	item in the Calibration/Cleaning
		submenu (in the Device
		Maintenance menu)
		If the error persists, manually clean
		the window and remove any foreign
		substances.
	Scratches are present on the	Replace the affected print cartridge.
	circumference of the	If the problem persists, replace the
	developing cylinder or
	photosensitive drum.	affected print cartridge.
	The laser/scanner-unit mirror	Replace the laser/scanner assembly.
	is dirty.

526 Chapter 3 Solve problems ENWW