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:
Aug. 05, 2025
Filed:
Sep. 28, 2023
Seiko Epson Corporation, Tokyo, JP;
Sukehiro Ito, Nagano, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
In the liquid ejection apparatus, when first temperature information detected by a first ejection module includes information regarding a temperature in a first temperature range and first ejection data is a first value, a first switch circuit of the first ejection module outputs a first drive voltage signal including a second drive waveform, when second temperature information detected by a second ejection module includes the information regarding the temperature in the first temperature range and second ejection data is the first value, a second switch circuit of the second ejection module outputs a second drive voltage signal including a first drive waveform, and when the second temperature information includes information regarding a temperature in a second temperature range and the second ejection data is the first value, the second switch circuit outputs the second drive voltage signal including a second drive waveform.