Combination of developing agents, image forming apparatus, and method for forming image

摘要

Disclosed is a combination of developing agents by which letting Ry micrometer be the volume-average particle diameter of a yellow developing agent, and R micrometer be the volume-average particle diameter of a non-yellow color developing agent, R<Ry and 4<R<11, and letting Ty (° C.) be the softening point of the yellow developing agent, and T (° C.) be the average value of the softening points of non-yellow color developing agents, Ty>T.