ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,429,796, issued on Sept. 30, was assigned to Canon K.K. (Tokyo).
"Image forming apparatus" was invented by Naoki Mugita (Ibaraki, Japan) and Kota Kurokawa (Chiba, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An image forming apparatus includes a developing bias applying portion that applies a developing bias including a direct current voltage and an alternating current voltage to a developer bearing member that bears toner. When a voltage on the same-polarity side of a charging polarity of the toner with respect to the direct current voltage out of the alternating current voltage is referred to as Vgo, the developing bias applying portion appli...