A printer comprising: a platen roller, a thermal head which is able to be pressure-contacted to the platen roller, a film cassette which holds a transfer film; a peeling member (34, 35) which separates the transfer film and an ink ribbon from an overlapped state and conveys the transfer film and the ink ribbon respectively in two different directions as being arranged at the downstream side of the platen roller; a film conveying roller which is fixedly arranged at the downstream side of the peeling member and inside the film cassette with respect to the transfer film; a pinch roller (32a, 32b) which is arranged at a position being faced to the film conveying roller while sandwiching the transfer film and which is movable between a pressure-contact position to cause the transfer film to be pressure-contacted to the film conveying roller and a separation position to be separated from the transfer film; and drive means which rotationally drives the film conveying roller, wherein the transfer film and the ink ribbon are conveyed to a print position between the platen roller and the thermal head which are mutually pressure-contacted, wherein the transfer film is displaced by a predetermined amount to inside the film cassette to be pressure-contacted to the film conveying roller by moving the pinch roller from the separation position to the pressure-contact position, and thereby at the print position an image is formed on the transfer film which is being conveyed with rotation of the film conveying roller, characterized by that the platen roller is arranged inside the film cassette with respect to the transfer film, the thermal head is fixedly positioned to face the platen roller so that the transfer film and the ink ribbon are conveyed therebetween, the platen roller is movable between a non-print position where the platen roller is separated from the transfer film and a print position where the transfer film and the ink ribbon are nipped by the platen roller and the thermal head, and the platen roller is moved from the non-print position to the print position, so that the transfer film is displaced to outside the cassette film by a predetermined amount for forming the image on the transfer film. a platen roller, a thermal head which is able to be pressure-contacted to the platen roller, a film cassette which holds a transfer film; a peeling member (34, 35) which separates the transfer film and an ink ribbon from an overlapped state and conveys the transfer film and the ink ribbon respectively in two different directions as being arranged at the downstream side of the platen roller; a film conveying roller which is fixedly arranged at the downstream side of the peeling member and inside the film cassette with respect to the transfer film; a pinch roller (32a, 32b) which is arranged at a position being faced to the film conveying roller while sandwiching the transfer film and which is movable between a pressure-contact position to cause the transfer film to be pressure-contacted to the film conveying roller and a separation position to be separated from the transfer film; and drive means which rotationally drives the film conveying roller, wherein the transfer film and the ink ribbon are conveyed to a print position between the platen roller and the thermal head which are mutually pressure-contacted, wherein the transfer film is displaced by a predetermined amount to inside the film cassette to be pressure-contacted to the film conveying roller by moving the pinch roller from the separation position to the pressure-contact position, and thereby at the print position an image is formed on the transfer film which is being conveyed with rotation of the film conveying roller, characterized by that the platen roller is arranged inside the film cassette with respect to the transfer film, the thermal head is fixedly positioned to face the platen roller so that the transfer film and the ink ribbon are conveyed therebetween, the platen roller is movable between a non-print position where the platen roller is separated from the transfer film and a print position where the transfer film and the ink ribbon are nipped by the platen roller and the thermal head, and the platen roller is moved from the non-print position to the print position, so that the transfer film is displaced to outside the cassette film by a predetermined amount for forming the image on the transfer film.