Radiation imagery chemistry: process – composition – or product th – Transfer procedure between image and image layer – image... – Imagewise heating – element or image receiving layers...
Patent
1999-04-19
2000-05-09
Schilling, Richard L.
Radiation imagery chemistry: process, composition, or product th
Transfer procedure between image and image layer, image...
Imagewise heating, element or image receiving layers...
430200, 430945, 346764, 503227, G03C 522, G03F 310
Patent
active
060602082
ABSTRACT:
A method for controlling the color density of colorant transferred to a substrate involves creating tiny gap areas in the coverage of the colorant. The method is useful in producing color proofs of halftone images. The gap areas are typically much smaller than a screen dot in a halftone image. The method permits the generation of a proof which has the same sizes of screen dots as will appear in the final printed image while operating in the saturation portion of the transfer function for the colorant being used. Suitable gap areas may be provided by pulsing a laser used to transfer colorant from a donor to a substrate. The method does not require the use of a variable power laser and therefore is more stable than previous proofing methods.
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Creo Products Inc.
Schilling Richard L.
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