A pyrene-based compound and an organic light-emitting diode including the pyrene-based compound are provided. The cassette includes a cassette frame, a cam, a cam position selector switch, and a biasing member. An image is printed on the print side of the substrate film. The substrates are received between the ribs and abut the shoulders. The rotation direction of the rotational drive force is for rotation in a direction of pivoting the support unit in the approaching direction.