| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a ferrite carrier core material for an electrophotographic developer and a ferrite carrier which have appropriate resistance and magnetization, excel in a charging property, in particular can maintain high charging under high temperature and humidity, and have good environmental dependence, and to provide the electrophotographic developer using the ferrite carrier. <P>SOLUTION: A ferrite carrier core material for an electrophotographic developer and a ferrite carrier containing 10 to 30 wt.% of Mn, 1.0 to 3.0 wt.% of Mg, 0.3 to 1.5 wt.% of Ti, and 40 to 60 wt.% of Fe, and the electrophotographic developer using the ferrite carrier are used. <P>COPYRIGHT: (C)2012,JPO&INPIT |
