Patent ID: 7927775

Claim:
A magnetic carrier having magnetic carrier particles produced by filling pores of porous magnetic core particles with a resin, wherein the magnetic carrier contains 80% by number or more of the magnetic carrier particles satisfying the following (a) and (b) when 18 straight lines passing through a reference point of a cross section of the magnetic carrier particle are drawn at intervals of 10° in a reflected electron image of the cross section of the magnetic carrier particle photographed by a scanning electron microscope: (a) the number of magnetic core regions having a length of 6.0 μm or longer on the straight lines is from 5.0% by number or more to 35.0% by number or less relative to the number of magnetic core regions having a length of 0.1 μm or longer on the straight lines, and (b) the number of regions other than the magnetic core part having a length of 4.0 μm or longer on the straight lines is from 1.0% by number or more to 15.0% by number or less relative to the number of regions other than the magnetic core part having a length of 0.1 μm or longer on the straight lines.