Toner and developer compositions and processes thereof
AssigneeXerox Corporation
InventorsGeorge W. Vianco, Sheau Van Kao, Michelle M. Bruzee
Life of this patent
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Abstract
Disclosed is a process for enhancing xerographic developer tribo product longevity comprising providing developer particles comprised of a toner comprised of at least one resin, pigment, charge additive, surface additive particles, a charge control agent retention additive or compound, and a carrier.
Claims23
A process for enhancing xerographic developer tribo product longevity comprising providing developer particles comprised of a toner comprised of at least one resin, pigment, charge additive, surface additive particles, a charge control agent retention additive or compound selected from the group consisting of a graft copolymer, and a block copolymer in an amount of from about 0.5 to about 10 weight percent, and a carrier wherein the developer life time or tribo product longevity of said developer particles is extended from about 300,000 xerographic copies in the absence of said charge control retention agent to about 400,000 xerographic copies in the presence of said charge control agent retention additives.
A process in accordance with claim 6 wherein the toner resin component is further comprised of a second toner resin component comprised of crosslinked resin particles, and wax component particles.
A xerographic imaging process comprising:
- providing a development apparatus between an imaging member and a transporting member;
- providing developer particles comprised of a toner comprised of resin, pigment, charge additive, surface additive particles and a charge control agent retention additive or compound, and a carrier;
- and transporting said developer to a photoconductive imaging member by said transporting member wherein said toner is attached to images present on said imaging member causing development thereof and wherein the developer life time or tribo product longevity of said developer particles is extended.
Dependencies are inferred from the claim text.