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US 6,289,196 B1Granted
Oxidized transport donor roll coatings
AssigneeXerox Corporation
InventorsBing R. Hsieh, Yuan Yu, William H. Wayman, Donald S. Stanton, Allen J. Thompson, Michelle L. Schlafer, Ann M. Kazakos, Heiko Rommelmann, Alan R. Kuntz, Steven C. Hart
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Abstract
A donor member useful in ionographic or electrophotographic apparatuses and preferably useful in hybrid scavengeless development units, having a substrate and an oxidized transport coating including charge transport molecules, polymer binder, and an oxidized oligo arylamine salt comprising a cation of an oligo arylamine molecule and a counter anion.
Claims20
An apparatus for developing a latent image recorded on a surface, comprising:
- a) wire supports;
- b) a donor member spaced from the surface and able to transport toner to a region opposed from the surface, wherein said donor member comprises a substrate and having thereover an oxidized transport coating comprising charge transport molecules, polymer binder, and an oxidized oligo arylamine salt comprising an oligo arylamine cation and a counter anion wherein said oxidized oligo arylamine salt comprises more than two arylamine monomers;
- and, further comprising an outer protective layer positioned on said oxidized transport coating;
- and
- c) an electrode member positioned in the space between the surface and said donor member, said electrode member being spaced a distance from said donor member and being electrically biased to detach toner from said donor member thereby enabling the formation of a toner cloud in the space between said electrode member and the surface with detached toner from the toner cloud developing the latent image.
2 more elements
Dependencies are inferred from the claim text.