| abstract |
A resin-filled carrier for an electrophotographic developer that retains the advantages of a resin-filled carrier and has little fluctuation in charging characteristics and electrical resistance over a long period of time, and an electrophotographic developer using the resin-filled carrier. To provide. A resin-filled carrier for an electrophotographic developer obtained by filling a void in a porous ferrite core material with a resin, wherein the pore volume of the porous ferrite core material is 0.04 to 0.16 ml. / G, a peak pore size of 0.9 to 2.0 μm, and a resin-filled carrier for an electrophotographic developer containing fine particles in the resin to be filled and an electrophotographic developer using the resin-filled carrier are employed. To do. [Selection figure] None |