Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...
Patent
1995-09-29
1997-05-27
Goodrow, John
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Post imaging process, finishing, or perfecting composition...
361226, G03G 908
Patent
active
056331088
ABSTRACT:
A toner composition for developing an electrostatic latent image comprising a base toner, which is a blend of a polymeric resin and a colorant, and one or more of a lubricating agent, a flowability agent, a charge-stabilizing agent, and a conductive agent, which has certain electrical characteristics. The base toner has a mean particle diameter (D.sub.50) of 7 to 18 microns, and a bulk resistivity of greater than 10.sup.12 ohm-cm. The toner composition is prepared by blending a polymeric resin with a colorant and then blending a dry powder lubricating agent, and optionally other additives, with the base toner. The toner composition is charged by being disposed in an electrostatic fluidized bed from which the toner particles are levitated by air and then subjected to field charging created by a high voltage corona generating device contained within the bed.
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Christy Orrin D.
Hook Kevin J.
Pickett John E.
Swanson Leo
Goodrow John
Moore Business Forms Inc.
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