CARRIER

PROBLEM TO BE SOLVED: To obtain a carrier having stable resistance for a long time with which a developer having good durability and a long life without spent of a toner can be obtd. and a copy image showing good reproducibility of dots and a good roughness state in a halftone area can be obtd. SOLUTION: This carrier has the following properties. A magnetic material having the relation of (major axis/minor axis)>1 is used, and fine particles of the magnetic material shows 30 to 150 emu/cm magnetization in 1000 Oe magnetic field, >=25 emu/cm magnetization in 0 Oe magnetic field after the magnetic material is magnetically saturated, and =90% coating rate of the resin on the carrier core surface are >=80% in number of the whole particles, and the carrier has 10 to 10 Ω.cm.