Toner, developing device and developing method using the same

Details Toner, developing device and developing method using the same Toner, developing device and developing method using the same

2008-04-08

2008-04-08

Le, Hoa Van (Department: 1795)

Electrophotography

Having particular structure

Modular or displaceable

C399S119000

Reexamination Certificate

active

11086772

ABSTRACT:
The present invention provides a toner having: a toner mother particle; a first external additive including a first inorganic fine particle having a primary particle size distribution of 200 to 750 nm and a work function approximately equivalent to that of the toner mother particle; a second external additive including a second inorganic fine particle having an mean particle size smaller than that of the first inorganic fine particle and a work function smaller than that of the toner particle, a stirring member of a developing device and/or an inner wall of the developing device; and 0.01% to 0.3% by weight of a metal soap having a work function approximately equivalent to that of the toner mother particle.

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