Toshiba e-Studio250, e-Studio200, e-Studio160 manual Background Fogging Feeding direction

(15) Background Fogging

Feeding direction

Step	Cause/Defect area	Check items	Measures
1	Density reproduction	Image density reproduction de-	Adjust density.
		fect?
2	Main charger	Main charger dirty?	Clean main charger wire, replace process unit
			or charger wire.
3	Process unit (developer)	Magnetic roller pressure mecha-	Check mechanism.
		nism working normally?
4	Process unit (drum)	Film formed on drum surface?	If problem persists, replace process unit or
			drum.
			Note: Never touch drum surface.
5	HVPS (main charger/	High-voltage output defective?	Adjust output from HVPS, or replace defec-
	developer bias/		tive HVPS.
	transfer charger
6		If problem persists after measures	Replace process 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 - 73 e-STUDIO160/200/250 TROUBLESHOOTING