Toshiba e-Studio200, e-Studio250, e-Studio160 Black banding in feeding direction Feeding direction

(7) Black banding (in feeding direction)

Feeding direction

Step	Cause/Defect area	Check items	Measures
1	Scanner	Foreign matter in optical path?	Clean slit, lens and mirrors.
2	Process unit	Main charger wire stained?	Clean charger wire.
3	(main charger)	Foreign matter on grid?	Remove foreign matter.
4		Grid dirty or deformed?	Clean grid, replace process unit or grid.
5	Process unit (Drum)	Scratches on drum surface?	Replace process unit or drum.
6	Fuser unit	Dirt or scratches on heat roller	Clean or replace heat roller?
		surface?
7		If problem persists after measures	Replace process unit or fuser unit.
		are applied, or there is no prob-
		lem found in above check, follow
		procedure described in right col-
		umn.

December 2002 TOSHIBA TEC 4 - 65 e-STUDIO160/200/250 TROUBLESHOOTING