| abstract |
[PROBLEMS] To obtain an image with an appropriate image density and an extremely low background stain even when repeatedly used for a long period of time. A toner capable of forming a stable image with no transfer omission. In a dry electrostatic image developing toner comprising toner particles in which an external additive is carried on toner base particles containing at least a binder resin and a colorant, the toner base particles have protrusions on the surface, and The average length of the long side in the protrusion is 0.10 μm or more and less than 0.50 μm, the standard deviation of the length of the long side in the protrusion is 0.2 or less, and the surface of the toner base particle of the protrusion Electrostatic charge image development, wherein the coverage is 10% to 90%, and at least one of the external additives is inorganic fine particles whose surface is surface-treated with an amino group-containing silane coupling agent Toner. [Selection figure] None |