Electrostatographic imaging process
AssigneeXerox Corporation
InventorsJoseph Mammino, Franklin Jossel
Life of this patent
Estimating the term…
Abstract
A novel yellow electrostatographic colorant is disclosed. This colorant may be employed as an electrostatographic toner or developer material. Electrophotographic processes are disclosed employing this colorant. When employed as an electrophotographic developing material, this colorant is found to possess superior triboelectric properties among others which result in superior electrophotographic machine life than known yellow colorants.
Claims19
An electrostatographic imaging process comprising establishing an electrostatic latent image on a surface and contacting said surface with an electrostatographic material comprising a resin material and a colorant, said colorant satisfying the formula. ##STR6##
A color electrophotographic imaging process comprising charging a photoconductive member, exposing said photoconductive member to an original to be reproduced through a filter of one color thereby selectively discharging said photoconductive member, developing the electrostatic image formed thereby with a developer of a complementary color, said developer being one member of the group consisting of copper tetra-4-(octadecysulfonamido) phthalocyanine pigment, cyan toner and a methyl terpolymer coated steel carrier;
- 2,9-dimethylquinacridone pigment identified in the Colour Index as C.I. Pigment Red 122, megneta toner and a nickel berry carrier;
- azo dye classified in the Colour Index as Yellow Pigment 97, yellow toner and a nickel berry carrier;
- charging said photoconductor for a second time and selectively exposing said photoconductor to the same image through a filter of another primary color, developing the latent electrostatic image formed thereby with a developer of a complementary color, said developer being another member selected from the group consisting of copper tetra-4-(octadecylsulfonamido) phthalocyanine pigment, cyan toner and a methyl terpolymer coated steel carrier;
- 2,9-dimethylquinacridone pigment identified in the Colour Index as C.I. Pigment Red 122, magenta toner and a nickel berry carrier;
- and azo dye identified in the Colour Index as yellow 97, yellow toner and a nickel berry carrier;
- charging said photoconductive member for a third time, exposing said photoconductor to the same image through a filter of the remaining primary color and developing the latent electrostatic image with a complementary developer, said developer being the remaining developer of the group consisting of copper tetra-4-(octadecylsulfonamido) phthalocyanine pigment, cyan toner and a methyl terpolymer coated steel carrier;
- 2,9-dimethylquinacridone pigment identified in the Colour Index as C.I. Pigment Red 122, magenta toner and a nickel berry carrier;
- and azo dye identified in the Colour Index as Yellow Pigment 97 yellow toner, and a nickel berry carrier.
An electrostatographic imaging process comprising establishing an electrostatic latent image on a surface and contacting said surface with a electrostatographic developer material comprising a carrier and a toner said toner comprising a resin material and a colorant satisfying the formula:
- ##STR7##
Dependencies are inferred from the claim text.