US Patent Issued to Zhuhai Pantum Electronics on May 12 for "Control method and device of optional paper tray" (Chinese Inventor)

ALEXANDRIA, Va., May 12 -- United States Patent no. 12,623,869, issued on May 12, was assigned to Zhuhai Pantum Electronics Co. Ltd. (Zhuhai, China).

"Control method and device of optional paper tray" was invented by Xiaohua Zhou (Zhuhai, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A control method and a control device of an optional paper tray are provided. The control method is applied to an image forming device, and include: according to a position of a bottom plate of the optional paper tray, determining whether a triggering condition for lifting the bottom plate is met; and using a paper feeding driving unit of the optional paper tray to drive the bottom plate of the optional paper tray to be l...