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. 17, 2014
Filed:
Dec. 12, 2011
Tsukasa Doi, Kawasaki, JP;
Kiichiro Takahashi, Yokohama, JP;
Akiko Maru, Tokyo, JP;
Takatoshi Nakano, Yokohama, JP;
Hiroshi Taira, Inagi, JP;
Tsukasa Doi, Kawasaki, JP;
Kiichiro Takahashi, Yokohama, JP;
Akiko Maru, Tokyo, JP;
Takatoshi Nakano, Yokohama, JP;
Hiroshi Taira, Inagi, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
The amount of ink wastage is reduced, even in a case wherein a predetermined amount of air bubbles has grown in a print head at a specific internal temperature and the growth has been settled, and thereafter the temperature in the print head is increased. A suction-based recovery control method, for an ink jet printing apparatus that includes a print head, a temperature detection unit, and a suction-based recovery unit, comprising: a temperature detection step; a temperature judgment step for judging whether the internal temperature of the print head is higher than a reference temperature that is determined based on internal temperatures of the print head that were previously employed; and a suction-based recovery step for permitting the suction-based recovery unit when it is determined at the temperature judgment step that the internal temperature of the print head is higher by the predetermined number of degrees or greater.