Toner for developing electrostatic image comprising titanium oxide particles

摘要

The present invention provides a toner for developing an electrostatic image, comprising toner particles and external additives, wherein; said external additives comprise (A) titanium oxide particles having a weight average particle diameter of from 0.01 mu m to 0.2 mu m, having been subjected to hydrophobic treatment, (B) organic resin particles having a weight average particle diameter of from 0.02 mu m to 0.5 mu m and (C) an inorganic compound having a weight average particle diameter of from 0.5 mu m to 2.5 mu m; said external additives being added in an amount satisfying the relationship: (A):(B)=2:1 to 10:1 (A):(C)=1:1 to 5:1; and said toner contains toner particles having a particle diameter of from 2 mu m to 5 mu m in an amount of from 15% by number to 40% by number.