Abstract: There is disclosed a ribbon cartridge for an electronic typewriter. The cartridge includes a case for containing the ribbon, a supplying spool for supplying the ribbon, a winding spool for winding the ribbon supplied from the supplying spool, a tension member for tensioning the ribbon, a resiliently pressing means for contacting the winding spool with the winding gear, and a guide roll for guiding the ribbon. The tension member comprises an L-shaped spring, whose middle curved portion is supported on the spindle of the supplying spool. A first branch of the L-shaped spring is fixed on a corner structure, while a second branch thereof holds the ribbon to tension it. The resilient pressing means includes a pin spring resiliently pressing the spindle of the winding spool toward the winding gear. The side of the guide roll is tapered bidirecionally from the center line between the both ends thereof toward the both ends so that the ribbon is guided without being folded longitudinally.