Full-color image-forming method, and two-component developer...

Details Full-color image-forming method, and two-component developer... Full-color image-forming method, and two-component developer...

2005-02-15

2005-02-15

Goodrow, John L (Department: 1756)

Radiation imagery chemistry: process, composition, or product th

Electric or magnetic imagery, e.g., xerography,...

To produce color reproduction

C430S111100, C430S111400, C430S122520, C399S262000

Reexamination Certificate

active

06855469

ABSTRACT:
In a full-color image-forming method having at least a charging step, a latent-image-forming step, a developing step of developing an electrostatic latent image by the use of a developer; a transfer step, and a fixing step, the developer comprises a plurality of color developers and a black developer. The color developers are each a two-component developer for full-color image formation which has i) a color toner having color toner particles containing at least a binder resin, a colorant and a wax and ii) a carrier for the color developer. The black developer is a two-component developer for full-color image formation which has i) a black toner having black toner particles containing at least a binder resin, carbon black and a wax and ii) a carrier for the black developer. The carrier for the black developer has a larger absolute value of charge quantity when the same toner is used, than the respective carriers for the color developers.

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European Search Report dated May 19, 2003 (Ref. No. EP 36474).

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