ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,554,219, issued on Feb. 17, was assigned to Kyocera Document Solutions Inc. (Japan).
"Image forming apparatus" was invented by Hironori Yamauchi (Osaka, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An image forming apparatus includes a fuser heater, a semiconductor relay device between the fuser heater and a commercial power supply, a heater relay between the fuser heater and the commercial power supply, and a controller. The controller performs on/off control of the semiconductor relay device and the heater relay. The semiconductor relay device outputs an error signal if conducting current to the fuser heater is less than a threshold value in a...