Patent ID: 7502581

Claim:
A magnetic brush development station for a reproduction apparatus, said magnetic brush development station comprising: a housing forming, at least in part, a reservoir for developer material; a developer roller mounted within the housing for delivering developer material to a reproduction apparatus dielectric support member in a development zone, the developer roller including a core magnet inside a shell, said core magnet and said shell having relative rotation; a transport mechanism for transporting developer material from said reservoir to said developer roller; a metering skive for establishing a developer material metering gap between said metering skive and said developer roller for controlling the quantity of developer material transported from the reservoir portion of said housing to said developer roller and then through said development zone to develop a latent image charge pattern on the dielectric support member; and a mechanism including an actuator mechanism for converting movement of said metering skive in the direction parallel to the longitudinal axis of said developer roller into movement of said metering skive perpendicular to said developer roller for selectively moving said metering skive to an operative position relative to said developer roller and to a position remote from said developer roller, wherein build up of contamination at said metering gap between said metering skive and said developer roller can be substantially prevented.