ALEXANDRIA, Va., March 19 -- United States Patent no. 12,251,930, issued on March 18, was assigned to Canon K.K. (Tokyo).

"Printing apparatus" was invented by Masato Eiyama (Yokohama, Japan), Yuki Igarashi (Tokyo), Masashi Kamada (Kawasaki, Japan), Masashi Negishi (Kawasaki, Japan), Ryoya Shinjo (Kawasaki, Japan), Ryo Kobayashi (Kawasaki, Japan), Tomohiro Suzuki (Kawasaki, Japan) and Tsutomu Obata (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A roll sheet with a continuous sheet wound in a roll form is rotated in a forward direction to supply the sheet to a printing unit. A sensor whose output is changed in accordance with a distance between the sensor and the sheet is used. A rotation direction of t...