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. 18, 2025
Filed:
Jan. 19, 2022
Hiromichi Hirano, Kanagawa, JP;
Hiromichi Hirano, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A liquid discharge apparatus includes a head including a piezoelectric element and a nozzle, the head configured to drive the piezoelectric element to discharge a liquid from the nozzle, a drive waveform generator configured to generate a drive waveform to be applied to the piezoelectric element of the head, the drive waveform including a non-discharge pulse configured to drive the piezoelectric element to a degree at which the liquid is not discharged from the nozzle, and a discharge pulse applied to the piezoelectric element after the non-discharge pulse, the discharge pulse configured to drive the piezoelectric element to discharge the liquid from the nozzle, a switch between the head and the drive waveform generator, the switch configured to be switched to an ON-state in which the drive waveform passes the switch or to an OFF-state in which the drive waveform does not pass the switch.