Patent ID: 7759036
Filing Date: 2010-07-20
Classification: G03G

Abstract:
1. A toner comprising: a binder resin; toner-base particles containing an inorganic filler, and inorganic fine particles, wherein the toner is obtained by adding, into an aqueous medium, a toner material liquid in which at least the binder resin and the inorganic filler are dispersed and/or dissolved in an organic solvent, so that the toner material liquid is emulsified, and removing the organic solvent therefrom, wherein the filler is contained in a filler-layer in the vicinity of a surface of the toner-base particles, a number average particle diameter of the primary particles of the inorganic fine particles is 90 nm to 300 nm, and the average circularity of the toner is 0.94 or more, and wherein a filler-existence ratio X