ELECTROPHOTOGRAPHIC CARRIER AND ITS PRODUCTION

摘要

PROBLEM TO BE SOLVED: To provide a carrier having low resistance and high durability which does not cause color contamination. SOLUTION: This carrier consists of carrier particles having a resin coating film layer comprising a thermosetting resin as a main component all over the particle surface. In the resin coating film layer, the resin film on a convex part is made thin and the resin film area on a convex part occupies 55 to 90% of the whole surface area of the carrier particle. The carrier particles are produced by coating with dipping, spraying or dropping method in a film forming solution which contains a silicone resin as the main component and then drying. The coating and drying processes are carried out by heating and/or under a reduced pressure.