Uneven image density Feeding direction

(10) Uneven image density

Step	Cause/Defect area	Check items	Measures

1	Paper	Paper in cassette or LCF damp?	Change paper.
			Avoid storing paper in damp place.

2	Laser scanner unit	Foreign matter or dust on lens?	Remove foreign matter or dust with blower.
			(Do not use a cloth.)

3	Process unit	Main charger wire stained?	Clean charger wire.
	(main charger)

4	Process unit (developer)	Is toner put in process unit in an	Shake process unit horizontally to place toner
		unbalanced manner?	evenly.

5	Transfer charger unit	Transfer charger unit securely in-	Re-install transfer charger unit securely.
		stalled?

6		Transfer charger wire dirty?	Clean transfer charger wire.

7		If problem persists after measures	Replace process unit, transfer charger unit,
		are applied, or there is no prob-	or laser scanner unit.
		lem found in above check, follow
		procedure described in right col-
		umn.

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December 2002 TOSHIBA TEC