A printer performing a printing operation on a roll sheet includes a roll sheet holder in which the roll sheet is stored, a roll sheet input port through which the roll sheet is input to the roll sheet holder, an opening/closing cover unit that opens and closes the roll sheet input port, and a link member that links the opening/closing cover unit with the roller sheet holder. The opening/closing cover unit is movable among an open position, a closed position, and a support position between the open position and the closed position.