ALEXANDRIA, Va., Aug. 6 -- United States Patent no. 12,377,652, issued on Aug. 5, was assigned to Seiko Epson Corp. (Tokyo).
"Liquid ejection apparatus and print head" was invented by Sukehiro Ito (Nagano, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "In the liquid ejection apparatus, when first temperature information detected by a first ejection module includes information regarding a temperature in a first temperature range and first ejection data is a first value, a first switch circuit of the first ejection module outputs a first drive voltage signal including a second drive waveform, when second temperature information detected by a second ejection module includes the information regarding the t...