Patent ID: 8722305

Claim:
A method of preparing a carrier for electrophotography, comprising a magnetic core material and a coating material layer formed on the surface of the magnetic core material, comprising: coating the magnetic core material with the coating material, wherein the coating material comprises a solvent; and burning the coating material with a high-frequency induction heater to form the coating material layer on the surface of the magnetic core material, wherein the high-frequency induction heater generates an alternating magnetic field and the alternating magnetic field repeatedly magnetizes the core material (hysteresis loss), and wherein the high-frequency induction heater heats the coating material on the surface of the magnetic core material from the inside so that solvent is removed from the coating material on the surface of the coating material and the coating material on the surface of the magnetic core material is crosslinked, and wherein the magnetic core material has a saturated magnetization of from 40 to 95 Am 2 /kg.