ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,481,232, issued on Nov. 25, was assigned to CANON K.K. (Tokyo).

"Image forming apparatus having first and second retractable toner cartridges" was invented by Jumpei Nitta (Kanagawa, Japan), Tomoya Tateishi (Kanagawa, Japan), Osamu Sasaoka (Kanagawa, Japan), Kohei Koguchi (Kanagawa, Japan), Shuma Hiasa (Kanagawa, Japan), Tachio Kawai (Tokyo) and Kenji Watanabe (Shizuoka, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An image forming apparatus includes a first toner cartridge to store first toner and is movable to a first attached position and a first retracted position with respect to a storage frame, and a second toner cartridge to store second ...