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:
Jul. 15, 2025
Filed:
Jan. 09, 2023
Seiko Epson Corporation, Tokyo, JP;
Yasuaki Hirai, Shiojiri, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A liquid ejection device includes a liquid ejection unit configured to perform printing by ejecting a liquid from a nozzle onto a medium, a maintenance unit configured to perform maintenance of the liquid ejection unit, a determination unit configured to determine whether printing data for the printing is ruled-line data including a vertical ruled line or non-ruled-line data not including the vertical ruled line, a storage unit configured to store a determination result obtained by the determination unit, and a control unit. The control unit changes intensity of the maintenance in accordance with a frequency of the ruled-line data included in the determination result stored in the storage unit.