ELECTROSTATIC CHARGE IMAGE DEVELOPMENT TONER, ELECTROSTATIC CHARGE IMAGE DEVELOPER, TONER CARTRIDGE, PROCESS CARTRIDGE, IMAGE FORMATION DEVICE, AND IMAGE FORMATION METHOD

摘要

PROBLEM TO BE SOLVED: To provide a toner capable of reducing the occurrence of void of a toner image.SOLUTION: An electrostatic charge image development toner contains toner particles and an external additive including titania particles, etc. and silica particles. The toner particle has a volume average particle diameter of 3 μm or more and 16 μm or less. A ratio of toner particles T1 of the toner particles, having a particle diameter of 1.0 μm or more and 30.0 μm or less to toner particles T2 having a particle diameter of 1.0 μm or more and 2.5 μm or less is 10% by number or more and 40% by number or less. A fine powder ratio C expressed by A/B is 0.18 or more and 0.40 or less, where A denotes a ratio of the toner particles T2 having a particle diameter of 1.0 μm or more and 2.5 μm or less, and B denotes a ratio of toner particles T3 having a particle diameter of 1.0 μm or more and 5.0 μm or less, to the toner particles. A ratio of, to the toner particles, toner particles with titania particles attached thereon from among the toner particles T2 having a particle diameter of 1.0 μm or more and 2.5 μm or less is 10% by number or more and 100% by number or less.SELECTED DRAWING: None