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 that suppresses roughening of images due to foam generated in fixed images during fixation.SOLUTION: A toner for electrostatic charge image development includes: toner particles comprising core material particles containing a polyester resin, and a coating layer containing a vinyl resin to cover the surface of each of the core material particles; and an external additive that is silica particles having an average circularity of 0.75 or more and 0.9 or less, and an average value of ratios of an equivalent circle diameter Da obtained by plane image analysis to a maximum height H obtained by stereoscopic image analysis of more than 1.5 and less than 1.9.