| abstract |
A stable image density and a good image without fogging can be obtained regardless of the use environment, and the occurrence of defective cleaning and waste toner puncture can be suppressed even under conditions of downsizing and long-term use of an image forming apparatus. Providing toner. A toner containing toner particles containing a binder resin and a colorant, and inorganic fine particles as external additives, wherein the inorganic fine particles are silica fine particles and Group 2 element titanate fine particles. The inorganic fine particles have a specific particle size, and the coverage X1 with silica fine particles on the surface of the toner particles determined by an X-ray photoelectron spectrometer is 40.0 area% or more and 75.0 area% or less. When the theoretical coverage by fine particles is X2, the diffusion index indicated by [Diffusion index = X1 / X2] satisfies [Diffusion index ≧ −0.0042? X1 + 0.62], and the embedding rate of the external additive is specified. A toner characterized by satisfying the above range. [Selection figure] None |