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:
Nov. 05, 2002
Filed:
Apr. 23, 2001
Tetsuji Kurata, Kanagawa, JP;
Yohji Ara, Kanagawa, JP;
Hiroyuki Inoue, Kanagawa, JP;
Hideo Fukazawa, Kanagawa, JP;
Hirofumi Hirano, Kanagawa, JP;
Hiroshi Netsu, Kanagawa, JP;
Hideaki Okamoto, Kanagawa, JP;
Masaya Uetsuki, Kanagawa, JP;
Hiroki Hayashi, Kanagawa, JP;
Noriyasu Asaki, Kanagawa, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An ink-jet recording apparatus, it is possible to assuredly execute replenishment of ink into an ink tank and control of a pressure within the ink tank during ink replenishment by a simple configuration, and reduce the size and the weight of the apparatus, and improve reliability of the apparatus. The ink-jet recording apparatus includes an ink tank for receiving ink from an ink intake, an ink supply unit for receiving ink from a replenishing tank into the ink tank by a negative pressure introduced from a suction port of the ink tank in the inside of the ink tank, and a negative-pressure controller for causing the negative pressure within the ink tank to remain in an ink supply channel from the replenishing tank to the inside of the ink tank, so that the negative pressure within the ink tank does not return to an atmospheric pressure while receiving ink.