Image proofing apparatus for gravure printing

Details Image proofing apparatus for gravure printing Image proofing apparatus for gravure printing

1994-08-22

1996-06-18

Voeltz, Emanuel T.

Boots, shoes, and leggings

430 49, 355239, 355245, B41N 303

Patent

active

055285155

ABSTRACT:
Image data of Y, M, C and K color separations received from a layout system through an interface circuit are applied through a color computation circuit to a chemical element adjusting LUT (lookup table). The chemical element adjusting LUT identifies coloring densities based on the image data of the color separations and chemical conditions set through a setter for forming cells. The coloring density of K separation is separated into three chromatic color components which are added to the coloring densities of the three chromatic color separations, taking superposition with the coloring densities of the three chromatic color separations into account. A dot generator determines cell portions and gravure screen wall portions synchronously with the coloring density identifying process. AOMs modulate light beams based on the voltages applied thereto, to expose halftone images. A color proof is obtained for prints to be made with printing cylinders prepared by the conventional gravure system.

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