Patent ID: 6852459

Claim:
A color toner composition, comprising: toner particles comprising: a binder resin; and a colorant and a release agent dispersed in the binder resin, and 0.3 to 1.5 parts by weight of titania having a primary particle diameter of 0.005 to 0.02 μm as an external additive, wherein the colorant has an average dispersion particle diameter not greater than 0.5 μm; the release agent and the binder resin are insoluble to each other; the toner particles satisfy the following relationship: 0.05 ≦Dw/D 4 ≦0.4, wherein Dw represents an average dispersion particle diameter of the release agent and D 4 represents a weight-average particle diameter of the toner particles; and the titania has a segregation rate of from 0.5 to 5%.