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:
Sep. 14, 1999
Filed:
Oct. 09, 1996
Kouichi Omata, Kawasaki, JP;
Yutaka Koizumi, Yokohama, JP;
Kiyomi Aono, Kawasaki, JP;
Tsutomu Abe, Isehara, JP;
Seiichiro Karita, Yokohama, JP;
Hiroki Tajima, Machida, JP;
Kazuo Haida, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Canon Aptex Inc., Ibaraki, JP;
Abstract
An ink leaking from an atmosphere communication hole of a waste ink container is guided to an end portion of the waste ink container. Electrodes are provided for shutting off an ink guide path. By this, the ink leaking through the atmosphere communication hole is inherently guided into the end portion of the container to come into contact with both of the electrodes. By contacting of the ink, a resistance value between the electrodes is varied to permit detection of ink leakage based on the variation of the resistance value. As a result, ink leakage from a waste ink container employed in an ink-jet printer or so forth can be certainly detected. Also, sealing ability of the waste ink container can be enhanced.