ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,496,819, issued on Dec. 16, was assigned to Brother Kogyo K.K. (Nagoya, Japan).
"Liquid ejection apparatus" was invented by Takafumi Nakase (Nagoya, Japan), Masayoshi Hayashi (Nagoya, Japan), Nobumasa Tanaka (Nagoya, Japan) and Zenichiro Sasaki (Nagoya, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A liquid ejection head has a nozzle. A controller is configured to: control the liquid ejection head to perform inspection driving, the inspection driving being driving the liquid ejection head to eject liquid from the nozzle for determining whether the nozzle is an abnormal nozzle having an abnormality in ejection of liquid; acquire a determination si...