Abstract: A fixing unit includes a photosensitive drum for bearing an image, an image forming member for forming the image on the photosensitive drum, a transfer charger for transferring the image formed by the image forming member to paper, a heating roller having a heat source for generating heat when a power supply is turned on for heating the paper to which the image is transferred by the transfer charger, a rotatable pressing roller which is brought into contact with and separated from the heating roller, for pressing the paper against the heating roller, a rotating plate for separating the pressing roller from the heating roller when the power supply is turned on, and a driving mechanism for rotating the pressing roller separated from the heating roller by the rotating plate.

Abstract: An autochanger type optical compact disc player includes a disc tray for holding a large number of discs in close proximity, a disc playback section, a disc transferring section for transferring the disc between the disc tray and the disc playback section, a first disc retention device mounted on the disc tray for blocking discs from coming out therefrom when the tray is removed from the disc player, and a second disc retention device mounted on the disc transferring section for confronting the disc tray and for blocking the discs from coming out therefrom when the tray is positioned in the disc player.