Patent ID: 6516173
Filing Date: 2003-02-04
Classification: G03G

Abstract:
Apparatus for developing latent electrostatic images on a charge retentive surface, said apparatus comprising:a supply of toner; a toner donor member spaced from said charge retentive surface for transporting toner to a development zone intermediate said charge retentive surface and said toner donor member; a plurality of wire electrode members positioned in said development zone, said wire electrode members being closely spaced to said donor member and being electrically biased for establishing an electrostatic field for effecting detachment of toner from said donor member thereby effecting a toner cloud in said development zone with detached toner from said toner cloud being attracted to said latent images whereby toner particles are attracted to latent electrostatic images formed in said charge retentive surface; means forming a part of each of said electrode members for minimizing the phenomena of wire history without diminishing the hardness of said electrode member.