ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,510,858, issued on Dec. 30, was assigned to CANON K.K. (Tokyo).

"Image forming apparatus" was invented by Shingo Ito (Tokyo), Masahiro Suetsugu (Kanagawa, Japan), Keitaro Nakata (Shizuoka, Japan), Takuya Oka (Kanagawa, Japan), Hisashi Taniguchi (Shizuoka, Japan) and Shimpei Ishikawa (Kanagawa, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is an image forming apparatus, including: an accommodation chamber for developer; a photosensitive drum; notification unit for making a notification to a user, and a control unit for controlling the notification unit. A replenishment container for developer is detachably attached to the accommodation ch...