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. 22, 2011
Filed:
May. 17, 2006
Hikaru Kaga, Aisai, JP;
Hikaru Kaga, Aisai, JP;
Brother Kogyo Kabushiki Kaisha, Nagoya-shi, Aichi-ken, JP;
Abstract
An ink-jet printer, including an ink-jet recording head having an ink inlet into which an ink inflows; an ink tank which stores the ink and which has an ink outlet from which the ink outflows and additionally has an air inlet into which an air inflows; a first connector having an ink supply passage which communicates, at one end thereof, with the ink outlet of the ink tank and communicates, at an other end thereof, with the ink inlet of the ink-jet recording head; an air-pressure regulating device which has an air outlet from which the air outflows and additionally has a second connector having an air supply passage which communicates, at one end thereof, with the air outlet and communicates, at an other end thereof, with the air inlet of the ink tank; an amount obtaining portion which obtains at least one of (a) an amount of the ink present in the ink tank and (b) an amount of the air present in the ink tank; and an operation control portion which controls, based on the amount obtained by the amount obtaining portion an operation of the air-pressure regulating device to regulate a pressure of the air present in the ink tank, to a predetermined value.