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US 6,066,421 AGranted
Color toner compositions and processes thereof
OwnerPaul C. Julien, Susan J. Kremer +4inventors
InventorsPaul C. Julien, Susan J. Kremer, Yelena Shapiro, Elliott A. Eklund, Sue E. Blaszak, Edul N. Dalal
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Abstract
A process including: mixing toners in a fluidized bed; electrostatically loading the resulting toner mixture onto a donor roll; ion charging the resulting layer of toner on the donor roll; and developing a latent image with the resulting charged toner layer on the donor roll member, wherein the color characteristics of the resulting developed color images encompass substantially the entire PANTONE.RTM. color space.
Claims20
A process comprising:
- mixing toners in a fluidized bed;
- electrostatically loading the resulting toner mixture onto a donor roll;
- ion charging the resulting layer of toner on the donor roll;
- and
- developing a latent image with the resulting charged toner layer on the donor roll member, wherein the color characteristics of the resulting developed color images encompass substantially all spot colors used in printing, wherein the toners are selected from the group consisting of a yellow toner;
- an orange toner;
- a magenta toner;
- a purple toner;
- a blue toner;
- a cyan toner;
- a green toner;
- a black toner;
- and a colorless toner.
10 more elements
A printing machine comprising:
- a developer housing adapted for pneumatically fluidizing a mixture of colored toners therein;
- a donor roll member for receiving a homogenous and uniformly charged mixture of toner particles from the developer housing and thereafter forming a layer of uniform thickness of fluidized toner mixture thereover;
- an ion charging member for charging the layer of uniform thickness of toner mixture on the donor roll;
- and
- an imaging member for selectively accepting the charged toner layer of uniform thickness from the donor member to form expanded gamut color toner images, wherein the toners are selected from the group consisting of a yellow toner;
- an orange toner;
- a magenta toner:
- a purple toner;
- a blue toner;
- a cyan toner;
- a green toner;
- a black toner;
- and a colorless toner.
10 more elements
Dependencies are inferred from the claim text.