TONER FOR ELECTROSTATIC LATENT IMAGE DEVELOPMENT, AND ONE-COMPONENT DEVELOPER AND TWO-COMPONENT DEVELOPER

Japanese Patent JP2018013633

A

PROBLEM TO BE SOLVED: To provide a toner for electrostatic latent image development that is excellent in low-temperature fixability, can prevent the occurrence of fogging, and can improve developability when image formation is performed in a low-humidity environment.SOLUTION: A plurality of toner particles each include a toner core, a shell layer that covers the surface of the toner core, and a plurality of magnetic powder particles penetrating the shell layer. The magnetic powder particles are each embedded in the surface of the toner core on the inside in the radial direction of the toner particle, and project to the outside in the radial direction of the toner particle beyond the surface of the shell layer on the outside in the radial direction of the toner particle. The average heywood diameter of the magnetic powder particles a, the thickness of the shell layer b, and an average value c satisfy the following formulas (1) and (2): (1) 0