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:
Mar. 05, 2024
Filed:
Mar. 21, 2022
Seiko Epson Corporation, Tokyo, JP;
Atsuhiro Hashimoto, Shiojiri, JP;
Ryosuke Tsuchihashi, Matsumoto, JP;
Seiko Epson Corporation, , JP;
Abstract
A liquid ejecting apparatus includes ejecting sections that eject droplets from nozzles according with a driving signal supplied thereto. The driving signal includes a plurality of ejection pulses during one cycle. The plurality of ejection pulses includes a final ejection pulse corresponding to a final droplet. The final ejection pulse includes an expansion element that expands a pressure chamber, an expansion-maintaining element that maintains the expansion of the pressure chamber, a contraction element that contracts the pressure chamber, and a vibration-damping element that reduces residual vibration of liquid in the pressure chamber. The time width of the sum of the expansion element and the expansion-maintaining element of the final ejection pulse is longer than a length that is 0.5 multiplied by the natural-vibration cycle of the ejecting sections, and is shorter than a length that is 1.0 multiplied by the natural-vibration cycle.