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. 26, 2009
Filed:
Jan. 19, 2006
Applicants:
Tomohiro Fujii, Matsudo, JP;
Hiroyuki Ishinaga, Tokyo, JP;
Kayo Mukai, Tokyo, JP;
Inventors:
Assignee:
Canon Finetech Inc., Misato-shi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/045 (2006.01); B41J 2/19 (2006.01);
U.S. Cl.
CPC ...
Abstract
Ink is smoothly supplied so as to increase ink ejection speed to achieve high-speed printing. Thus, a filter is used to partition an ink storing chamber into a first and second storing chambers. Ink stored in the first storing chamber is supplied to a common liquid chamber in an ejection element. Ink introduced into the second ink storing chamber through a joint is supplied to the first storing chamber through the filter. An ink storing chamber member is joined to an ink storing chamber cover member to form the first and second ink storing chambers partitioned by the filter.