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. 09, 2026
Filed:
Aug. 30, 2023
Canon Kabushiki Kaisha, Tokyo, JP;
Takatsugu Moriya, Tokyo, JP;
Nobuyuki Hirayama, Kanagawa, JP;
Hiroyasu Nomura, Tokyo, JP;
Takeshi Murase, Kanagawa, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
In order to make it less likely for the accuracy of determination of the ejection state of a liquid ejection head to be low, a liquid ejection apparatus sets a determination threshold for determining an ejection state of the liquid ejection head using first energy, the determination threshold being set based on a first output value outputted from the output unit in an event where the heat generating resistance element is driven with the first energy in an ejection state in which the liquid is ejected from an ejection port and a second output value estimated to be outputted from the output unit assuming the heat generating resistance element is driven with the first energy in a non-ejection state in which the liquid is not ejected.