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:
Jun. 26, 2012
Filed:
Oct. 10, 2008
Hideki Ogura, Yokohama, JP;
Yasuo Kotaki, Yokohama, JP;
Tetsuya Ohashi, Matsudo, JP;
Hitoshi Takada, Yokohama, JP;
Koichi Kubo, Yokohama, JP;
Ryoji Inoue, Kawasaki, JP;
Tatsuo Nanjo, Kawasaki, JP;
Hideki Ogura, Yokohama, JP;
Yasuo Kotaki, Yokohama, JP;
Tetsuya Ohashi, Matsudo, JP;
Hitoshi Takada, Yokohama, JP;
Koichi Kubo, Yokohama, JP;
Ryoji Inoue, Kawasaki, JP;
Tatsuo Nanjo, Kawasaki, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An ink tank with a high volume efficiency and a printing apparatus which are capable of completely using up ink stored in the ink tank. A meniscus holding force (Pm) of a non-compressed portion () of an ink guide member () is set higher than an initial ink-storage-portion negative pressure (P), and lower than a used-up ink-storage-portion negative pressure (P). In addition, a meniscus holding force (Pm) caused under compression is set stronger than the used-up ink-storage-portion negative pressure (P), and weaker than a meniscus holding force (Phf) of a head filter ().