ALEXANDRIA, Va., Sept. 10 -- United States Patent no. 12,409,669, issued on Sept. 9, was assigned to Toshiba Tec K.K. (Tokyo).

"Line printer having user replaceable platen rollers" was invented by Donn Bryant (Lexington, Ky.), William Connors (Lake Forest, Calif.), Michael Lawrence (Lexington, Ky.) and Brad Towe (Versailles, Ky.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A system and method for user friendly replacement of printer platen rolls includes a roll assembly having a support shaft with a bearing seated in a flange at one end. A crescent notch in a printer chassis receives the shaft into an interior of the notch. The assembly is moved axially so that a flange neck nests in the notch with a flang...