Abstract: An image recording apparatus forms an image on a thermal developing photosensitive material by light exposure, develops thermally the image on the photosensitive material and transfers the developed image to an image-receiving paper so as to be recorded thereon. An exposing drum has a through-hole for holding the thermal developing photosensitive material thereon by suction. An exposing head for exposing the thermal developing photosensitive material is disposed in opposing relation to the outer periphery of the exposing drum, together with transfer rollers for transferring the thermally developed image to the image-receiving paper. In addition, a heater for thermal development is incorporated in the exposing drum. Accordingly, it is possible to carry out exposing, thermal developing and transfer operations while keeping the thermal developing photosensitive material wound on the outer periphery of the exposing drum.

Abstract: In a photographic apparatus for printing an original image on a photosensitive material, focusing is conducted at two different points, and the positions of an easel and a lens at the time of the second focusing are calculated according to the lens formula from the travel amounts of the easel and lens between the first and second focusing positions as well as the focal length of the lens. When the focal length of the lens is unknown, focusing is performed at three points, and the positions of the easel and lens at the time of the third focusing are determined with the lens formula. Pulse motors used to move the easel and lens are controlled by a microcomputer, which adds the number of pulses for forward rotation of the pulse motor and subtracts that for backward rotation. The microcomputer counts and stores the number of pulses indicative of the present positions of the easel and lens.

Abstract: A convergent lens is pivotable into the optical path of a picture printer simultaneously with pivotting of an observing condition mirror so that the mirror and the observing screen can be made smaller. The mirror is separated into two parts, and the lens, mirror parts and a shutter are moved by a simple link mechanism.

Abstract: In a color printer provided with an optical path into which a negative is brought and an image of the negative is focused on a photographic paper to make a color print, an exposure control device is provided. The exposure control device has a plurality of neutral density filters which can be put into the optical path of the color printer independently of or in combination with each other. The combination of the plurality of neutral density filters is selected to stepwisely change the total density of the combined neutral density filters according to the density of the negative brought into the optical path of the color printer. The plurality of neutral density filters are gray filters and have different densities.