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. 10, 2013
Filed:
Nov. 07, 2008
Shinji Yamamoto, Kawasaki, JP;
Junya Kawase, Yokohama, JP;
Manabu Sueoka, Yokohama, JP;
Yohji Ara, Yokohama, JP;
Shinji Yamamoto, Kawasaki, JP;
Junya Kawase, Yokohama, JP;
Manabu Sueoka, Yokohama, JP;
Yohji Ara, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A printhead comprises a first ink chamber having an inlet port, to which ink from an ink supply source is supplied, a second ink chamber, to which the ink from the first ink chamber is supplied, a discharge orifice discharging ink from the second ink chamber, a first outlet port discharging fluid from the first ink chamber, a second outlet port discharging fluid from the second ink chamber, and an air-liquid separation unit which restricts liquid ejection and is provided between the first ink chamber and the first outlet port, or/and between the second ink chamber and the second outlet port. Flow resistance from the inlet port to the first outlet port is smaller than flow resistance from the inlet port to the second outlet port.