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:
Jul. 22, 2008
Filed:
Jan. 25, 2007
Yoshiko Hoshiyama, Shiojiri, JP;
Hirokazu Nunokawa, Shiojiri, JP;
Yoshiko Hoshiyama, Shiojiri, JP;
Hirokazu Nunokawa, Shiojiri, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
Faster printing and higher image quality are both achieved at a high level. The printing method determines between a first print mode and a second print mode, and ejects ink from a head. In the first print mode, both a dark ink and a light ink used for printing gradually dark and light of a given color are used and printing is performed with a predetermined number of types of dot gradation values, which is a plurality of types of dot gradation values, based on the sizes of the dots to be formed. In the second print mode, one of the dark ink and the light ink is used and printing is performed with the number of dot gradation values that is larger than the predetermined number, which is a plurality of types of dot gradation values, based on the size of the dots to be formed. By ejecting ink from a head, a dot gradation value corresponding to the size of the dot to be formed is determined from among the types of the dot gradation values corresponding in number to the determined print mode, and dark ink and light ink is ejected from the head in accordance with the determined dot gradation value.