ALEXANDRIA, Va., Sept. 10 -- United States Patent no. 12,411,432, issued on Sept. 9, was assigned to CANON K.K. (Tokyo).
"Image forming apparatus" was invented by Shunsuke Matsushita (Kanagawa, Japan) and Toshihiko Takayama (Kanagawa, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An image forming apparatus includes an image bearing member, a charging member, a development member, a developer accommodating portion, a first acquiring portion which acquires developer amount information related to an amount of the developer accommodated in the developer accommodating portion, a second acquiring portion which acquires development drive information related to a movement distance of a surface of the developm...