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:
Sep. 09, 2014
Filed:
Oct. 19, 2012
Seiko Epson Corporation, Tokyo, JP;
Toru Miyamoto, Shiojiri, JP;
Kimitaka Kamijo, Shiojiri, JP;
Mitsuhisa Ando, Matsumoto, JP;
Toru Takahashi, Azumino, JP;
Takamitsu Kondo, Shiojiri, JP;
Kazuyoshi Tanase, Matsumoto, JP;
Hiroshi Wada, Azumino, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A head unit is provided that includes a plurality of head groups having a first head and a second head in a direction which crosses a transport direction of a medium. Color difference is obtained which indicates difference in color between patches formed for each band using dots having the same dot diameter from among a plurality of patches based on the result of color measurement performed on a test pattern which includes the plurality of patches for each band, the plurality of patches being formed for each head group using dots having different dot diameters. The amount of first ink and the amount of second ink, which are respectively ejected from the first head and the second head which are included in all the head groups, are adjusted such that the dot diameter becomes the dot diameter which is determined based on the color difference.