Carrier for electrophotographic developer
AssigneeFuji Xerox Co., Ltd.
InventorsMasayuki Takeda, Masao Mochizuki, Koichi Kumashiro, Ikutaroh Nagatsuka, Masayoshi Shinoki, Takayoshi Aoki
Life of this patent
Estimating the term…
Abstract
A negative charging carrier for an electrophotographic developer is described, comprising a binder resin having dispersed therein a magnetic powder, wherein said carrier contains a fluorine-containing resin fine powder in an amount of from 5 to 50% by weight based on the total weight of the carrier. The carrier provides a developer for magnetic brush development having a prolonged life and a high rate of development.
Claims4
A negative charging carrier for electrophotographic developer comprising particles of binder resin having dispersed therein particles of a magnetic powder having an average particle diameter of from 0.05 to 5 .mu.m and particles of a fluorine-containing resin fine powder having an average particle diameter of 0.01 to 10 .mu.m, said fluorine-containing resin fine powder being present in an amount of from 5 to 50% by weight, based upon the total weight of the carrier.
Dependencies are inferred from the claim text.