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:
Feb. 14, 2023
Filed:
Sep. 25, 2020
Seiko Epson Corporation, Tokyo, JP;
Eiji Takagi, Shiojiri, JP;
Masanori Koizumi, Suwa, JP;
Shunya Komatsu, Matsumoto, JP;
Shuichi Nakano, Shiojiri, JP;
Masashi Kamiyanagi, Matsumoto, JP;
Toru Matsuyama, Matsumoto, JP;
Abstract
A print head drive circuit drives a print head including an ejecting portion ejecting a liquid in response to a drive signal propagating through a drive signal line and a storage portion storing ejecting portion-related information changing in accordance with use of the ejecting portion, in which processing of reading the ejecting portion-related information changing in accordance with the use from the storage portion is performed before the drive signal for ejecting the liquid from the ejecting portion is supplied to the print head.