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:
Feb. 21, 2017
Filed:
Nov. 03, 2014
Canon Kabushiki Kaisha, Tokyo, JP;
Hidehiko Kanda, Yokohama, JP;
Monta Matsui, Tokyo, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
An embodiment of this invention implements both suppression of occurrence of a print failure, and suppression of wasteful ink consumption along with bubble exhaust. Bubble sucking is performed as follows in a printing apparatus including a printhead in which a plurality of orifices are provided for discharging ink, an ink tank for supplying ink to the printhead through an ink channel, and a suction unit configured to suck ink from the orifices. A bubble is injected to the ink channel by using, for example, a pump and hollow needle. After injecting the bubble to the ink channel, the suction unit is operated to suck the injected bubble from the orifices.