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Color patch layout determination

A technology for determining layout and color blocks, applied in the field of printing technology, which can solve problems such as inaccuracy

Inactive Publication Date: 2019-01-01
KONICA MINOLTA LAB U S A INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Light reflected from surrounding areas (known as flare) can introduce inaccuracies in measurements of color patches of objects

Method used

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  • Color patch layout determination
  • Color patch layout determination
  • Color patch layout determination

Examples

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Embodiment Construction

[0026] As used herein, the term "paper" refers to any type of printable substrate on which an image can be applied. The term "paper" includes wood pulp papers, plastic films and sheets (eg, transparent films and acetate sheets) made by pressing cellulose pulp fibers into flat sheets and the like.

[0027] As used herein, the term "image" includes any one or combination of photographs, pictures, illustrations, alphanumeric and linguistic characters, symbols, and other graphic representations.

[0028] The term "sheet" and the phrases "sheet" and "paper" have the same meaning and refer to a single printable substrate. For example, a "sheet" may be an individual sheet of wood pulp paper, plastic sheet, or the like.

[0029] The term "print task" refers to a set of printing instructions in computer language. For example, a user (human) may create a first print job instructing a printing machine to make ten copies of a document. The printing instruction in the printing task may ...

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PUM

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Abstract

A color test pattern comprising color patches can be printed together with an image (text and / or pictures, for example) of a print job. After printing, reflections, known as flare, from the image mayadversely affect measurements taken of the color patches. To help reduce the effects of flare, a determination is made prior to printing as to the layout of the color patches. The determination involves comparing the color properties of the color patches with those of the image.

Description

technical field [0001] The present disclosure relates generally to printing technologies, and more particularly to methods, systems, and computer-readable media for maintaining print quality. Background technique [0002] Color output from printing machines may shift over time. The quality of printed images output by the printing machine can be maintained by periodically performing a color verification process that involves causing the printing machine to print a color test pattern. The color test pattern includes color patches, each of which is expected to have a target color property. After printing, the color properties of the patches are measured and compared to target properties. If the measurements do not match the target properties, a warning is generated and / or a color calibration process may be performed in which operating parameters of the printing machine are adjusted. [0003] During measurement, light is directed onto a sheet printed with color patches. Ligh...

Claims

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Application Information

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IPC IPC(8): G03G15/00
CPCG03G15/5025G03G15/5062H04N1/3871H04N1/6047G06K15/027G06K15/1878B41J2/2146G06F3/1208G06F3/1256G06F3/1242H04N1/6033G06F3/125G03G2215/0164G03G2215/0161B41J2029/3935B41J29/393
Inventor 山本一人
Owner KONICA MINOLTA LAB U S A INC
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