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:
Apr. 14, 2015
Filed:
May. 14, 2013
Canon Kabushiki Kaisha, Tokyo, JP;
Toshikazu Nagatsuka, Tokyo, JP;
Shuichi Murakami, Kawasaki, JP;
Keiji Tomizawa, Yokohama, JP;
Atsushi Omura, Kawasaki, JP;
Etsuko Sawada, Tokyo, JP;
Hiroaki Mihara, Machida, JP;
Yohei Hamade, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
There is provided an inkjet printing apparatus which can perform stable ejection also in successive printing at high speed even in a case of performing printing in use of a print head provided with an ejection opening surface having hydrophilic properties. The inkjet printing apparatus comprises an inkjet print head wherein the control unit controls the print head such that, in a case where the ejection number of the ink ejected from the print head after removing the ink on the ejection opening surface by the ink removal unit is equal to or more than a threshold, a drive energy amount that is supplied for the preliminary ejection operation is larger than a drive energy amount that is supplied for the preliminary ejection operation in a case where the ejection number is less than the threshold.