US Patent Issued to Ricoh on Feb. 11 for "Liquid discharge apparatus, drive waveform generation device, and head drive method" (Japanese Inventors)

ALEXANDRIA, Va., Feb. 12 -- United States Patent no. 12,220,915, issued on Feb. 11, was assigned to Ricoh Co. Ltd. (Tokyo).

"Liquid discharge apparatus, drive waveform generation device, and head drive method" was invented by Takahiro Yoshida (Kanagawa, Japan) and Kenichi Taguma (Kanagawa, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A liquid discharge apparatus includes: a head including a pressure chamber and a nozzle, the head configured to discharge a liquid in the pressure chamber from the nozzle; circuitry configured to generate a drive waveform including multiple drive pulses to be applied to the head, the drive waveform successively including, in time series: a non-discharge pulse that does n...