Incremental printing of symbolic information – Thermal marking apparatus or processes – Preheating
Reexamination Certificate
2005-03-22
2005-03-22
Feggins, K. (Department: 2861)
Incremental printing of symbolic information
Thermal marking apparatus or processes
Preheating
Reexamination Certificate
active
06870557
ABSTRACT:
A multicolor image forming material comprising: an image receiving sheet comprising a substrate and an image receiving layer; and at least four heat transfer sheets each comprising a substrate and an image forming layer, each of the heat transfer sheets being adapted to be superposed on the image receiving sheet with the image forming layer facing the image receiving layer and irradiated with laser light to transfer the irradiated area of the image forming layer to the image receiving layer to form an image on the image receiving sheet, wherein the at least four heat transfer sheets comprise a heat transfer sheet (X) of which the image forming layer has a hue selected from the group defined herein and an absolute difference ΔD between an optical density of the image forming layer of each of the at least four heat transfer sheets and a corresponding target optical density is equal to or smaller than 0.2.
REFERENCES:
patent: 5-58045 (1993-03-01), None
patent: 6-219052 (1994-08-01), None
Feggins K.
Fuji Photo Film Co. , Ltd.
Sughrue & Mion, PLLC
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