United States
US 12,697,810 B2
Drive device
US 12,697,810 B2 is a granted patent from the United States Patent and Trademark Office (USPTO), dated 2026-08-04. Applicant: RISO Technologies Corporation. Its PDF downloads from this page without an account, up to 5 a day.
- Applicant
- RISO Technologies Corporation
- Inventors
- Masaya ICHIKAWA
- Publication date
- 2026-08-04
- Filing date
- 2024-05-31
- Document type
- B2 Granted patent
- Also written as
- US 12,697,810 B2 · US12697810 · 12697810
Abstract
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.…
The opening of the abstract. The full text is in the PDF.
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Patent office website: United States Patent and Trademark Office (USPTO)
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