{"number":"US12697810B2","kindCode":"B2","documentType":"grant","title":{"original":"Drive device","english":"Drive device"},"abstract":{"original":"A drive device includes a drive circuit to output a drive signal that is to be applied to an actuator of a liquid ejection head for ejecting liquid droplets. The drive signal includes an adjustment ejection waveform portion that includes a first portion having an expansion pulse that decreases pressure in a pressure chamber of the actuator and a second portion having a contraction pulse that increases pressure in the pressure chamber.…","english":"A drive device includes a drive circuit to output a drive signal that is to be applied to an actuator of a liquid ejection head for ejecting liquid droplets. The drive signal includes an adjustment ejection waveform portion that includes a first portion having an expansion pulse that decreases pressure in a pressure chamber of the actuator and a second portion having a contraction pulse that increases pressure in the pressure chamber.…"},"applicants":["RISO Technologies Corporation"],"inventors":["Masaya ICHIKAWA"],"filingDate":"2024-05-31","publicationDate":"2026-08-04","grantDate":"2026-08-04","verifiedWithOffice":true,"pdfUrl":"https://downloadpatent.com/pdf/US12697810B2.pdf","pages":{"en":"https://downloadpatent.com/patent/US12697810B2","zh-Hant":"https://downloadpatent.com/zh-Hant/patent/US12697810B2","ja":"https://downloadpatent.com/ja/patent/US12697810B2"}}