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:
Jan. 22, 2013
Filed:
Feb. 23, 2011
Applicants:
Susumu Hirosawa, Tokyo, JP;
Yuji Kanome, Yokohama, JP;
Hiroyuki Tanaka, Kawasaki, JP;
Yoshiaki Suzuki, Nagareyama, JP;
Masahiro Sugimoto, Yokohama, JP;
Seiji Suzuki, Ebina, JP;
Takeaki Nakano, Inagi, JP;
Inventors:
Susumu Hirosawa, Tokyo, JP;
Yuji Kanome, Yokohama, JP;
Hiroyuki Tanaka, Kawasaki, JP;
Yoshiaki Suzuki, Nagareyama, JP;
Masahiro Sugimoto, Yokohama, JP;
Seiji Suzuki, Ebina, JP;
Takeaki Nakano, Inagi, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/165 (2006.01);
U.S. Cl.
CPC ...
Abstract
In order to efficiently perform preliminary ejection of ink at a bend of an ink circulation passage, the number of preliminary ejections of a nozzle group located on the outer side of the bend is set larger than the number of preliminary ejections of a nozzle group located in the middle of the bend.