ALEXANDRIA, Va., Jan. 20 -- United States Patent no. 12,529,977, issued on Jan. 20, was assigned to CANON K.K. (Tokyo).
"Image forming apparatus and process cartridge" was invented by Hirokazu Fujino (Shizuoka, Japan), Motonari Ito (Shizuoka, Japan), Naoki Fukushima (Shizuoka, Japan) and Masahiro Kurachi (Shizuoka, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An image forming apparatus includes an image bearing member, a charging roller, a cleaning roller and a developing member. The charging roller is provided with a surface contacting a surface of the image bearing member and charges the surface of the image bearing member. The cleaning roller is provided with an elastic foam layer contacting the s...