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. 04, 2014
Filed:
May. 09, 2011
Yasushi Kuribayashi, Shizuoka-ken, JP;
Kazuhiro Hara, Shizuoka-ken, JP;
Satoshi Kaiho, Kanagawa-ken, JP;
Hiroshi Murata, Kanagawa-ken, JP;
Yasushi Kuribayashi, Shizuoka-ken, JP;
Kazuhiro Hara, Shizuoka-ken, JP;
Satoshi Kaiho, Kanagawa-ken, JP;
Hiroshi Murata, Kanagawa-ken, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Toshiba Tec Kabushiki Kaisha, Tokyo, JP;
Abstract
According to one embodiment, an ink jet recording apparatus includes an ink jet head, a first tank arranged above the ink jet head and configured to store ink to be supplied to the ink jet head, a first tank valve that opens and closes in order to switch the inside of the first tank to be opened to or shut off from the atmosphere, a second tank arranged below the ink jet head and configured to store the ink collected from the ink jet head, a second tank valve that opens and closes in order to switch the inside of the second tank to be opened to or shut off from the atmosphere, a pipe configured to connect the ink jet head, the first tank, and the second tank and form a part of a circulation shape, a pump provided in the pipe between the first tank and the second tank, a passive pressure adjusting device connected to the second tank, arranged below the first tank, and configured to generate negative pressure using the gravity, and a third tank valve provided between the second tank and the passive pressure adjusting device.