ALEXANDRIA, Va., June 25 -- United States Patent no. 12,339,609, issued on June 24, was assigned to KYOCERA Document Solutions Inc. (Osaka, Japan).
"Image forming apparatus" was invented by Masami Shibahara (Osaka, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A control unit of an image forming apparatus can perform a density correction mode to correct toner density, based on detection results of toner density of a plurality of reference images formed with density gradations changed sequentially in a plurality of steps, detects presence or absence of a change in the voltage in each density gradation, based on the toner density detection value detected in the density correction mode, and if the density...