ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,441,113, issued on Oct. 14, was assigned to CANON K.K. (Tokyo).
"Printing apparatus and method for controlling printing apparatus" was invented by Norio Sakurai (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A printing apparatus includes a suction unit configured to suction liquid from an ejection port, a valve provided at a first position in a supply passage and configured to be switchable between an open state in which the supply passage communicates and a closed state in which the supply passage is blocked, and a control unit configured to perform control of first suction in which the valve is set to the open state and the suction unit perform...