Patent ID: 8422919
Filing Date: 2013-04-16
Classification: G03G

Abstract:
1. Toning apparatus for an electrophotographic marking engine, comprising: a. a rotatable toning member for transporting developer, the toning member including an axle, the developer including toner particles and magnetic carrier particles; b. a receiving member arranged with respect to the toning member so that a toning zone is defined in which toner particles are transferred from the toning member to the receiving member, and a receiving zone is defined on the toning member prior to the toning zone in the direction of rotation of the toning member; c. a magnet for producing a magnetic field through the surface of the toning member in the receiving zone, so that the carrier particles in the developer in the receiving zone are attracted to the toning member; d. a sump for holding developer; e. a rotatable ribbon blender including an axle, a first inner ribbon and a first outer ribbon having opposite handednesses of twist and arranged to rotate with the axle, and a paddle connected to the first outer ribbon, the ribbon blender disposed at least partially in the developer in the sump, so that when the ribbon blender rotates, the paddle transports developer from the sump to the receiving zone on the toning member.