ALEXANDRIA, Va., Sept. 17 -- United States Patent no. 12,416,888, issued on Sept. 16, was assigned to RICOH COMPANY LTD. (Tokyo).
"Image forming apparatus" was invented by Keita Sone (Tokyo), Tomohide Takenaka (Kanagawa, Japan), Shinya Tanaka (Kanagawa, Japan) and Masashi Tachi (Kanagawa, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An image forming apparatus includes an image former, a detector, and circuitry. The image former forms a toner pattern with a first line screen; and forms a toner image based on image data, with a second line screen. The detector detects density unevenness of the toner pattern, formed by the image former, in a main scanning direction. The circuitry is configured to calcul...