Patent ID: 7749671

Claim:
A toner comprising, at least: a toner base comprising a binder resin and a colorant, and an inorganic fine particle, wherein the inorganic fine particle comprises a compound oxide expressed by the following Composition Formula (1): [M1] a Si b O c Composition Formula (1) where “M1” represents a metal element selected from Sr, Mg, Zn, Co, Mn and Ce, “a” and “b” each represents an integer of 1 to 9 and “c” represents an integer of 3 to 9, wherein an average primary particle diameter of the compound oxide is 0.05 μm to 1.2 μm, wherein an average secondary particle diameter of the compound oxide is 0.08 μm to 3.5 μm, where the secondary particle is an aggregate of the primary particles.