Patent ID: 6420079
Filing Date: 2002-07-16
Classification: G03G

Abstract:
An electrophotographic toner constituting a dual component developer in combination with a powdered magnetic carrier, comprising:toner base particles made up of a binder resin containing a coloring agent and the like with a fluidizer and other particles adhering to the surface thereof; and fine inorganic particles having a volume mean diameter of 250 to 600 nm (i.e., 0.25 to 0.6 &mgr;m) with a specific surface area of 0.25 to 0.5 m2/g for serving as an abrasive, characterized in that 1.5 to 2 parts by weight of the abrasive is externally added to 100 parts by weight of the toner base particles and made to be deposited over the toner base particle surface.