Patent ID: 8785095
Filing Date: 2014-07-22
Classification: G03G

Abstract:
1. A toner for developing an electrostatic charge image, the toner comprising: a toner particle comprising a binder resin, a colorant, and a releasing agent; and an external additive disposed on the surface of the toner particle, the external additive comprising: hydrophobically surface-treated titanium dioxide particles having average primary particle diameters in a range of from about 10 nm to about 50 nm, wherein a (D84v/D16v) in which D16v is a particle diameter at which a cumulative percentage of 16% is attained, and D84v is a particle diameter at which a cumulative percentage of 84% is attained, in a cumulative volume distribution of the sol-gel silica particles as measured by the Coulter method.