ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,523,959, issued on Jan. 13, was assigned to CANON K.K. (Tokyo).
"Image forming apparatus" was invented by Tomoo Akizuki (Kanagawa, Japan) and Yusuke Shimizu (Kanagawa, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An image forming apparatus includes a photosensitive member, a charging member, an exposing unit to expose a surface of the photosensitive member, and a developing member to supply toner with normal polarity at a developing portion. A controller, during a non-image formation when a toner image is not formed on a surface of the photosensitive member, controls such that a developing voltage is changed in a predetermined voltage width by a...