The invention relates to automatic eye tracking, wherein at least one imaging device registers sequential image data representing at least one eye of a subject. The equipment costs and installation costs of the cooling apparatuses are lower than those of conventional stave coolers, and they can be installed at any position according to the condition of the bricks. A chip can be placed within a socket with a manipulator and aligned during compression of the socket. A printing sheet of paper on which the desired positive toner image is transferred is conveyed from the image forming apparatus to a first thermal transfer portion of downstream side to meet time when the foil sheet on which the foil image, to be printed, remains reaches the first thermal transfer portion.