Patent ID: 7279262

Claim:
A magnetic carrier comprising carrier particles, wherein: a BET specific surface area (BET 1) of the magnetic carrier is from 0.02 m 2 /g to 0.20 m 2 /g as measured by a BET method, each carrier particle comprises a carrier core and a coat material for coating the carrier core, the carrier core comprises at least a binder resin and magnetic particles dispersed in the binder resin, the coat material has a coat resin, a ratio (A) of a fluorine element abundance ratio (Fatom) to a carbon element abundance ratio (Catom), Fatom/Catom, at a surface of the carrier particle is from 0.10 to 0.85, and a ratio ((A)/(B)) of a ratio (A) of a fluorine element abundance ratio (Fatom) to a carbon element abundance ratio (Catom), Fatom/Catom, at a surface of the carrier particle to a ratio (B) of a fluorine element abundance ratio (Fcalc) to a carbon element abundance ratio (Ccalc) that is theoretically calculable from molecular structure of the coat resin, Fcalc/Ccalc is from 1.01 to 3.00.