ALEXANDRIA, Va., Aug. 25 -- United States Patent no. 12,715,724, issued on Aug. 25, was assigned to Ricoh Co. Ltd. (Tokyo).

"Sheet conveying device, automatic document feeder, and image forming apparatus" was invented by Yosuke Iida (Kanagawa, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A sheet conveying device includes: a conveyor to convey a sheet in a conveyance direction; a sound collector to collect sound generated by a conveyance of the sheet by the conveyor, the sound collector movable in a sheet width direction orthogonal to the conveyance direction; and a circuitry configured to determine whether an abnormal conveyance occurs based on the sound collected by the sound collector."

The patent...