Black and white reproducible pattern highlight color printing

Details Black and white reproducible pattern highlight color printing Black and white reproducible pattern highlight color printing

1994-12-05

1996-10-22

Beatty, Robert

Photocopying

Contact printing

Light boxes

G03G 1501

Patent

active

055682480

ABSTRACT:
In a reproduction method for printing a hardcopy document with a highlight color printer so that the hardcopy document is printed with areas thereof printed with a selected highlight color imaging material and areas thereof printed with a black imaging material, which hardcopy documents may be subsequently optically copied as black and white copies on a black and white only optical reproduction apparatus, selected highlight color imaging materials which do not copy well on the black and white only optical reproduction apparatus are printed with a repeating optically distinguishable pattern in the highlight color printed areas of the hardcopy document with the same highlight color printer concurrently with the printing of the selected highlight color. The pattern is optically distinguishable by the black and white only document reproduction apparatus so as to automatically reproduce in the black and white copies made of the hardcopy document. The optically distinguishable pattern may be printed with black imaging material superposed with the highlight color imaging material.

REFERENCES:
patent: 3807852 (1974-04-01), Hoydic
patent: 4308553 (1981-12-01), Roetling
patent: 4703318 (1987-10-01), Haggerly
patent: 4845524 (1989-07-01), Okamoto et al.
patent: 5098817 (1992-03-01), Voorhees
patent: 5138465 (1992-08-01), Ng et al.
patent: 5142337 (1992-08-01), Karidis et al.
patent: 5153576 (1992-10-01), Harrington
patent: 5153739 (1992-10-01), Laman et al.
patent: 5291243 (1994-03-01), Heckman et al.
patent: 5321470 (1994-06-01), Hasuo et al.

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