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US 4,901,100 AGranted
Single pass color highlighting copying system
AssigneeXerox Corporation
InventorAnthony J. DiBianca
Life of this patent
Estimating the term…
Abstract
An apparatus in which a copy of an original document has selected portions thereof color highlighted. An editing device, associated with an electrophotographic printing machine, selects the portions of the copy to be reproduced in a highlight color with the remainder of the copy being reproduced in another color. The printing machine, in response to the signal transmitted from the edit pad, records a latent image on a photoconductive surface having a plurality of charge levels. These charge levels are developed simultaneously with different color developer material. The resultant developed image has different colors therein. This developed image is transferred to a copy sheet and fused thereto forming a color highlighted copy.
Claims17
A copy system, including:
- input means for inputting a color highlighting condition for image editing;
- a copying machine;
- means for coupling said input means to said copying machine;
- and
- image forming means installed in said copying machine and for forming a copy image of an original being edited in accordance with the color highlighting condition so that the copy image has a plurality of different charge levels with a first charge level corresponding to a first region of the copy image to be developed with developer material of a first color and a second charge level corresponding to a second region of the copy image to be developed with developer material of a second color, said image forming means comprises a photoconductive member, means for charging said photoconductive member to a substantially uniform charge level, means, responsive to said inputting means, for exposing the charged portion of said photoconductive member to record the electrostatic latent image on said photoconductive member having the plurality of different charge levels, said exposing means comprises means for projecting a light image of the original being edited, and means, responsive to said inputting means, for adjusting the intensity of the light image so that the light image has a plurality of different intensities with a first intensity level corresponding to the first region of the copy image to be developed with developer material of the first color and a second intensity level corresponding to the second region of the copy image to be developed with developer material of the second color.
2 more elements
A copy system, including:
- input means for inputting a color highlighting condition for image editing;
- a copying machine;
- means for coupling said input means to said copying machine;
- and
- image forming means installed in said copying machine and for forming a copy image of an original being edited in accordance with the color highlighting condition so that the copy image has a plurality of different charge levels with a first charge level corresponding to a first region of the copy image to be developed with developer material of a first color and a second charge level corresponding to a second region of the copy image to be developed with developer material of a second color, said image forming means comprises a photoconductive member, means for charging said photoconductive member to a substantially uniform charge level, means for projecting a light image of the original being edited onto the charged portion of said photoconductive member to record an electrostatic latent image thereon, and means, responsive to said inputting means, for adjusting the charge levels of the electrostatic latent image so that the electrostatic latent image has a plurality of different charge levels with the first charge level corresponding to the first region of the copy image to be developed with developer material of the first color and the second charge level corresponding to the second region of the copy image to be developed with developer material of the second color.
2 more elements
An apparatus for producing a color highlighted copy of an original document;
- including:
- means for reproducing copies of an original document;
- means, located remotely from said reproducing means, for designating selected portions of the original document to be color highlighted and generating a signal indicative of the portions of the original document to be color highlighted;
- and
- means, mounted in said reproducing means, for forming a latent image of the original document, said forming means being responsive to the signal from said designating means so that the latent image has at least two charge levels with a first charge level corresponding to a first region of the latent image to be developed with developer material of a first color and a second charge level corresponding to a second region of the latent image to be developed with developer material of a second color, said forming means comprises a photoconductive member, means for charging said photoconductive member to a substantially uniform charge level, means for projecting a light image of the original document onto the charged portion of said photoconductive member, and means, responsive to said designating means, for adjusting the intensity of the light image so that the light image has a plurality of different intensities with a first intensity level corresponding to the first region of the electrostatic latent image to be developed with developer material of the first color and a second intensity level corresponding to the second region of the latent image to be developed with developer material of the second color.
2 more elements
Dependencies are inferred from the claim text.