Method of regulating ink-feeding or inking in printing

Details Method of regulating ink-feeding or inking in printing Method of regulating ink-feeding or inking in printing

1996-04-29

1998-08-11

Fisher, J. Reed

Printing

Processes

Condition responsive

B41F 3100

Patent

active

057912513

ABSTRACT:
Method of regulating inking when printing is performed with more than three printing colors, which includes comparing, in a control, actual value color locations derived from a color measuring arrangement with reference value color locations in a given user color space; deriving control signals from the attained comparison values, in accordance with a predetermined relationship, for an inking device containing ink distribution devices which influence the thickness of a layer of printing ink applied zonally in the form of halftone dots or solid full-tone areas to a material to be printed; and further deriving the actual value color locations from measurement locations in the printed image. When printing with n printing colors wherein n is greater than 3, deriving the actual value color locations from measurement locations of at least (n-2) regions, wherein vectors of area coverage of all of the n printing colors involved are, respectively, linearly independent of one another.

REFERENCES:
patent: 5182721 (1993-01-01), Kipphan et al.
patent: 5530656 (1996-06-01), Six

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