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:
May. 28, 2002
Filed:
Mar. 07, 1996
Noribumi Koitabashi, Yokohama, JP;
Masami Ikeda, Yokohama, JP;
Sadayuki Sugama, Tsukuba, JP;
Naohito Asai, Yokohama, JP;
Hiromitsu Hirabayashi, Yokohama, JP;
Tsutomu Abe, Isehara, JP;
Hiroshi Sato, Yokohama, JP;
Shigeyasu Nagoshi, Kawasaki, JP;
Eiichiro Shimizu, Urawa, JP;
Masahiko Higuma, Tohgane, JP;
Yuji Akiyama, Yokohama, JP;
Hitoshi Sugimoto, Kawasaki, JP;
Miyuki Matsubara, Tokyo, JP;
Shinichi Sato, Kawasaki, JP;
Fumihiro Gotoh, Yokohama, JP;
Masaya Uetsuki, Kawasaki, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A liquid container for containing printing liquid for supplying to a recording head for an ink jet recording apparatus, the container includes a first chamber containing a negative pressure producing material and having a printing liquid supply port connectable to a recording head for allowing printing liquid to be supplied to the recording head and an air vent for allowing ambient air to enter the container, and a second chamber which provides a printing liquid reservoir for the first chamber and is substantially closed apart from a communication port communicating with the first chamber to allow the printing liquid to flow into the first chamber and to allow air to be introduced into the second chamber from the first chamber. The second chamber comprises a replaceable printing liquid chamber.