MAGNETIC CARRIER AND TWO-COMPONENT DEVELOPER

摘要

Provided is a magnetic carrier giving a high quality image free of density variation without the occurrence of fogging or carrier adhesion and having excellent dot reproducibility even during long-term use. The magnetic carrier is the one having magnetic carrier particles produced by filling pores of porous magnetic core particles with a resin. On the 18 straight lines drawn at intervals of 10° which pass through a reference point of a cross section of the magnetic carrier particle in a reflected electron image of a cross section of the magnetic carrier particle photographed by a scanning electron microscope, the number of magnetic core regions having a length of 6.0 µm or longer is from 5.0 to 35.0% by number relative to the total number of magnetic core regions having a length of 0.1 µm or longer, and the number of regions other than the magnetic core part having a length of 4.0 µm or longer is from 1.0 to 15.0% by number relative to the total number of regions other than the magnetic core part having a length of 0.1 µm or longer.