US Patent Issued to Seiko Epson on April 7 for "Liquid ejection device and defective nozzle determination method" (Japanese Inventor)

ALEXANDRIA, Va., April 7 -- United States Patent no. 12,594,757, issued on April 7, was assigned to Seiko Epson Corp. (Tokyo).

"Liquid ejection device and defective nozzle determination method" was invented by Duc My Hoang (Shiojiri, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A liquid ejection device includes a liquid ejection head having a plurality of nozzles, a carriage on which the liquid ejection head is mounted, the carriage alternately executing a first movement, which is a movement in a first direction, and a second movement, which is a movement in a second direction opposite to the first direction; and a control section configured to control the liquid ejection head and the carriage, where...