Patent ID: 6580891
Filing Date: 2003-06-17
Classification: G03G

Abstract:
In a development system including a developer transport adapted for depositing developer material on an imaging surface having an electrostatic latent image thereon, comprising:a housing defining a chamber storing a supply of developer material comprising carrier and toner; a donor member, mounted partially in said chamber and spaced from the imaging surface, for transporting developer on an outer surface thereof to a region opposed from the imaging surface, said donor member having a magnetic assembly having a plurality of poles, a sleeve, enclosing said magnetic assembly, rotating about said magnetic assembly; and a vibrating member positioned between said magnetic assembly and said sleeve at a predefined position around said donor roll, said vibrating member fluidizing said developer material on said donor member to prevent developer bed freezing, to prevent long-range carrier bead chain formation, and to smooth developer bed height-banding on said donor member before a development zone.