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. 01, 2009
Filed:
Jun. 13, 2007
Nobuyuki Hatasa, Kawasaki, JP;
Kenjiro Watanabe, Tokyo, JP;
Kimiyuki Hayasaki, Yokohama, JP;
Takayuki Ochiai, Tokyo, JP;
Kenji Kitabatake, Kawasaki, JP;
Nobuyuki Hatasa, Kawasaki, JP;
Kenjiro Watanabe, Tokyo, JP;
Kimiyuki Hayasaki, Yokohama, JP;
Takayuki Ochiai, Tokyo, JP;
Kenji Kitabatake, Kawasaki, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A control section of each ink tank detects a difference in voltage value between a voltage value of an output data signal and a voltage value of an input data signal through the differential detector. When a plurality of ink tanks of the same color are mounted, this voltage difference carries a value different from a voltage of the original output data signal. Accordingly, by detecting this voltage difference, it can be detected that the plurality of the ink tanks of the same color are mounted, these ink tanks can be specified and identified, and be controlled individually.