Patent ID: 6023600
Filing Date: 2000-02-08
Classification: G03G

Abstract:
An apparatus for developing a latent image recorded on an imaging surface, comprising:a housing defining a reservoir storing a supply of developer material wherein said developer material having predefined triboelectric charge;a donor member, mounted partially in said housing and spaced from the imaging surface, for transporting toner on an outer surface of said donor member to a region opposed from the imaging surface,an electrode member disposed in between said donor member and said imaging surface;means for loading a region of said doner member with developer material;means for ion charging said toner loaded on the region of said donor member to a predefined charge level;means for measuring the charge level on the region on said donor member;a controller responsive to said measuring means, for adjusting charging output of said ion charging meansmeans for electrically biasing said electrode member positioned in close proximity to said imaging surface to detach toner from said region of said donor member as to form a toner cloud for developing the latent image.