The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 29, 2013
Filed:
Mar. 11, 2011
Jun Hoshii, Nagano, JP;
Ayako Kobayashi, Nagano, JP;
Jun Hoshii, Nagano, JP;
Ayako Kobayashi, Nagano, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A printer performs calibration in which a reference primary color ink is mixed with at least one additional primary color ink to approximate a predetermined target primary color. The printer includes an acquisition section, a predicting section, an optimizing section and a printing unit. The acquisition section acquires spectral reflectances of the reference primary color ink printed on a base, the additional primary color ink printed on the base, and the base. The predicting section calculates predicted spectral reflectance of a mixture of the primary color inks by dividing a product of the spectral reflectances of the primary color inks by the spectral reflectance of the base raised to the power obtained by subtracting 1 from a total number of the inks. The optimizing section optimizes an ink-amount set of the mixture so that the predicted spectral reflectance is approximated to spectral reflectance of the target primary color.