Dell 2330dn service manual Light print, White or black lines or bands, Toner on back

Light print

FRU	Action
Toner cartridge (not a	Make sure the toner cartridge and PC Kit are installed correctly and that the toner cartridge
FRU)	is not low on toner.
	If the problem continues, then install a new toner cartridge.
	Recheck condition before replacing PC Kit, if necessary.
	Check the transfer roll for signs of toner buildup and contamination.
	Inspect the HVPS contact (transfer roll) for contamination.
	Verify the high voltage cable is plugged into the LVPS/HVPS.
	If all components appear free of contamination, then replace the following FRUs one at a
Transfer roll	time in the order shown:
LVPS/HVPS card	• Transfer roll
	• LVPS/HVPS card
White or black lines or bands

FRU	Action
Print cartridge	Banding appears as light or dark horizontal lines on a uniformly gray page or on a page with
assembly (not a FRU)	a large area of graphics. Banding is primarily due to a variation in the speed of the media as
Developer drive	it feeds through the printer, especially in the developer and transfer process. It may also be
coupling assembly	a result of overly dry or moist environments.
Main motor gear drive	With the printer off, check to make sure that the laser beam is not blocked.
	Inspect the toner cartridge and paper feed components, especially the drive coupler and
	drive gears for debris, binds, or damage.
Toner on back of page

FRU	Action
Photoconductor kit (not	Print a menu page found under Utilities, and check settings for media type.
a FRU)	Inspect the overall paper path for signs of spilled toner.
	Gently clean the contaminated areas with a soft cloth.
Fuser	Inspect the fuser for signs of contamination.
	Replace the fuser as necessary.
Transfer roll	A transfer roll contaminated with toner can cause toner to transfer to the back of pages.
	Inspect the transfer roll for contamination and its cable for continuity.
HVPS or controller	Loss of the proper high voltages can cause excessive toner to contaminate the transfer
board	roller. None of these voltages can be measured, but the contacts and continuities can be
	checked. To check the lower voltage, see J502 on the wiring diagram. Replace the LVPS/
	HVPS or controller board as necessary.

Diagnostics information 2-33