ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,533,875, issued on Jan. 27, was assigned to SCREEN Holdings Co. Ltd. (Kyoto, Japan).
"Printer and maintenance method" was invented by Koji Kanki (Kyoto, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A technique allows sucking ink adhering to the lower surface of a head and preventing the ink from being sucked out from the inside of nozzles of the head. The printer includes a head that ejects ink and a maintenance unit that performs maintenance of the head. The head has a lower surface that includes a nozzle face provided with a plurality of nozzles and side faces located adjacent to the nozzle face. The maintenance unit includes a cleaning block ...