Patent ID: 6551754
Filing Date: 2003-04-22
Classification: G03G

Abstract:
A method for coating carrier particles having a volume average diameter between 20 and 200 &mgr;m, for use in electrostatic developers, comprising the steps of:forming a coating mixture in a vessel at a temperature from 15 to 40 degrees C. by adding a coating solution comprising a volume B of B ml of at least one solvent, the solvent having a boiling point, to carrier particles having a volume A of A ml in said vessel, said volume A and said volume B being selected such that 0.5&lE;A/B&lE;5, wherein said coating solution comprises a solvent having a lowest boiling point of all solvents present in the coating solution; and evaporating said at least one said solvent by mechanically agitating and gradually heating said coating mixture to a temperature of at most 10 degrees C. above the lowest boiling point.