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:
Jun. 09, 2015
Filed:
Jul. 15, 2014
Canon Kabushiki Kaisha, Tokyo, JP;
Hiroaki Shirakawa, Kawasaki, JP;
Kazuo Suzuki, Yokohama, JP;
Mitsutoshi Nagamura, Tokyo, JP;
Yuhei Oikawa, Yokohama, JP;
Yosuke Ishii, Kawasaki, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An inkjet printing apparatus which performs printing by performing scanning using a print head has a problem in that quality of an image of a ruled line is degraded when ink is not ejected for a certain period of time. To address this problem, control is performed such that power for driving the print head for unit regions including pixels having a ruled-line attribute becomes higher than power for driving the print head for unit regions which do not include the pixels having the ruled-line attribute. By this, a high-quality ruled-line image may be printed.