MAGNETIC CARRIER AND TWO-COMPONENT DEVELOPING AGENT

摘要

A magnetic carrier which has magnetic carrier particles each having at least porous magnetic core particles and a resin, in which, in a backscattered electron image of the magnetic carrier particles, photographed with a scanning electron microscope as taken at an accelerating voltage of 2.0 kV, magnetic carrier particles having area proportion S 1 found from a specific expression (1) of from 0.5 area% or more to 8.0 area% or less are in a proportion of 80% by number or more in the magnetic carrier, an average proportion Av 1 of the total area of portions having a high luminance which come from a metal oxide on the magnetic carrier particles to the total projected area of the magnetic carrier particles is from 0.5 area% or more to 8.0 area% or less, and an average proportion Av 2 found from a specific expression (2) is 10.0 area% or less.