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. 15, 2013
Filed:
Dec. 14, 2009
Kiichiro Takahashi, Yokohama, JP;
Minoru Teshigawara, Saitama, JP;
Tetsuya Edamura, Kawasaki, JP;
Akiko Maru, Tokyo, JP;
Takatoshi Nakano, Tokyo, JP;
Hiroshi Taira, Chofu, JP;
Kiichiro Takahashi, Yokohama, JP;
Minoru Teshigawara, Saitama, JP;
Tetsuya Edamura, Kawasaki, JP;
Akiko Maru, Tokyo, JP;
Takatoshi Nakano, Tokyo, JP;
Hiroshi Taira, Chofu, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
In an inkjet printing method of performing printing on a printing medium by ejecting inks from a printing head configured to eject chromatic inks and an achromatic ink while moving the printing head, high-quality printing with few boundary stripes produced when the amount of inks is large is realized without complicated control being performed. To this end, print data in a boundary and the vicinity thereof is divided into unit regions, and for each unit region, performed are (A) a first reduction processing which determines a hue of the unit region based on amounts of the chromatic inks, and reduces the amount of chromatic inks applied to the unit region according to the determined hue; and (B) a second reduction processing which reduces an amount of achromatic ink based on the amount of achromatic ink applied to the unit region.