Ferrite carrier core material, carrier for electrophotographic development using this, and developer for electrophotographic development

摘要

PROBLEM TO BE SOLVED: To provide a ferrite carrier core material capable of suppressing an image memory and suppressing the occurrence of carrier adhesion with less wear of a resin coating layer even after long-term use. SOLUTION: This ferrite carrier core material has a composition represented by (MnxFe3-x) O4 (where 0