TONER FOR ELECTROSTATIC CHARGE IMAGE DEVELOPMENT, ELECTROSTATIC CHARGE IMAGE DEVELOPER, TONER CARTRIDGE, PROCESS CARTRIDGE, IMAGE FORMING APPARATUS, AND IMAGE FORMING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a toner for electrostatic charge image development having excellent fluidity.SOLUTION: A toner for electrostatic charge image development contains toner particles containing a binder resin having a carboxyl group, and an external additive having a primary particle diameter of 10 nm or more and 30 nm or less. The carboxyl group contained in the binder resin present on the surface of the toner particles forms calcium salt; and the amount of calcium detected by ion chromatography is 1.00×10mol/g or more and 0.90×10mol/g or less.