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:
Mar. 20, 2007
Filed:
Sep. 17, 2004
Yuichiro Suzuki, Kanagawa, JP;
Masao Maeda, Kanagawa, JP;
Hitoshi Nishikori, Tokyo, JP;
Kazuhisa Kuruma, Kanagawa, JP;
Hideki Nakanishi, Kanagawa, JP;
Takayuki Murata, Kanagawa, JP;
Yuichiro Suzuki, Kanagawa, JP;
Masao Maeda, Kanagawa, JP;
Hitoshi Nishikori, Tokyo, JP;
Kazuhisa Kuruma, Kanagawa, JP;
Hideki Nakanishi, Kanagawa, JP;
Takayuki Murata, Kanagawa, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A printing apparatus and printing method can realize high-quality printing without degrading the quality of a printed image even when a nozzle restriction function is adopted in addition to a discharge failure complement function. In a printing apparatus using an inkjet printhead having a plurality of nozzles, whether the position of an ink discharge failure nozzle exists at or near the end of a nozzle area which is still usable regardless of the use restriction on the nozzles is detected. The use of a nozzle for complementary printing executed with a nozzle positioned near the ink discharge failure nozzle is controlled in accordance with the detection result.