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:
Sep. 19, 2023
Filed:
Jul. 16, 2021
Seiko Epson Corporation, Tokyo, JP;
Shushi Makita, Shiojiri, JP;
Masako Fukuda, Shiojiri, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A liquid discharge apparatus includes a drive signal generation section configured to generate a plurality of drive pulses that is supplied to a pressure generation unit to change a pressure in liquid in a pressure chamber communicated with a nozzle. The plurality of drive pulses include: first and second discharge pulses to discharge liquid from the nozzle; and first and second micro-vibration pulses to not discharge liquid. The first discharge pulse and the first micro-vibration pulse are included in a first period included in a repetition cycle. The second discharge pulse and the second micro-vibration pulse are included in a second period included in the repetition cycle and later than the first period. The length from a start of the first period to the first micro-vibration pulse differs from the length from a start of the second period to the second micro-vibration pulse.