A printing system comprising: a printing apparatus; an extension unit adapted to accommodate media, the extension unit being disposed below the printing apparatus; and a transport route adapted to transport the media to a printing unit in the printing apparatus, the printing apparatus including: the printing unit, which is adapted to print information on the media by using a recording material; a first storage unit adapted to accommodate the media; a second storage unit adapted to accommodate an object related to the printing apparatus, the second storage unit being disposed below the first storage unit; and a first paper feed mechanism adapted to feed the media accommodated in the first storage unit to the transport route, the extension unit including: a housing; a third storage unit adapted to accommodate the media; a second paper feed mechanism adapted to feed the media accommodated in the third storage unit to the transport route; and a feed roller adapted to transport the media fed by the second paper feed mechanism, the feed roller being disposed in the transport route, the feed roller being disposed so as to overlap the second storage unit in a horizontal direction, characterized in that a liquid storage body that contains a liquid as the recording material or a container adapted to accommodate the liquid storage body is disposed in the second storage unit, the second storage unit includes a liquid supply route adapted to supply the liquid contained in the liquid storage body to the printing unit, and the liquid supply route is provided so as to overlap the second paper feed mechanism in a vertical direction. a printing apparatus; an extension unit adapted to accommodate media, the extension unit being disposed below the printing apparatus; and a transport route adapted to transport the media to a printing unit in the printing apparatus, the printing apparatus including: the printing unit, which is adapted to print information on the media by using a recording material; a first storage unit adapted to accommodate the media; a second storage unit adapted to accommodate an object related to the printing apparatus, the second storage unit being disposed below the first storage unit; and a first paper feed mechanism adapted to feed the media accommodated in the first storage unit to the transport route, the printing unit, which is adapted to print information on the media by using a recording material; a first storage unit adapted to accommodate the media; a second storage unit adapted to accommodate an object related to the printing apparatus, the second storage unit being disposed below the first storage unit; and a first paper feed mechanism adapted to feed the media accommodated in the first storage unit to the transport route, the extension unit including: a housing; a third storage unit adapted to accommodate the media; a second paper feed mechanism adapted to feed the media accommodated in the third storage unit to the transport route; and a feed roller adapted to transport the media fed by the second paper feed mechanism, the feed roller being disposed in the transport route, a housing; a third storage unit adapted to accommodate the media; a second paper feed mechanism adapted to feed the media accommodated in the third storage unit to the transport route; and a feed roller adapted to transport the media fed by the second paper feed mechanism, the feed roller being disposed in the transport route, the feed roller being disposed so as to overlap the second storage unit in a horizontal direction, characterized in that a liquid storage body that contains a liquid as the recording material or a container adapted to accommodate the liquid storage body is disposed in the second storage unit, the second storage unit includes a liquid supply route adapted to supply the liquid contained in the liquid storage body to the printing unit, and the liquid supply route is provided so as to overlap the second paper feed mechanism in a vertical direction.