Test pattern printing method, information processing apparatus and printing apparatus
US6505909B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 18, 2000 |
| Grant date | Jan 14, 2003 |
| Priority date | — |
| Expiry date | Apr 18, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K2215/0094
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A printing information processing apparatus based on the present invention forms a patch by forming adjacent positions for each of the test area and for reference area composed of a predetermined single-color within a color reproducible range in coloring material used for a plurality of test areas mentioned above and at the same time forms a plurality of patches by changing the gradation in the test area composed of at least one coloring material among the coloring materials equipped with the printing means at the time of printing operation based on the printing means equipped with at least one ordinary coloring material and a special color having a color belonging to color reproducible range based on the ordinary coloring material, and at least one side of both patterns shall contain the special coloring material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.