A photographic printing apparatus for printing a series of patterns of prints and including a film carrier for positioning film to have light projected through the frames thereof and along an optical axis for projecting images on printing paper positioned on a printing paper support. First and second lens sets are provided for selective movement into the optical axis for projecting respective first and second patterns of images onto the printing paper, such patterns occupying respective first and second lengths of such paper. Printing paper advance means is connected with the printing paper support and the first and second lens sets and is responsive to the first lens set being moved into such optical axis to advance the printing paper the first length and is responsive to the second lens set being moved into the optical axis to advance the paper such second length whereby the respective first and second patterns of prints may be printed on the printing paper at immediately adjacent locations.
An exposure device for a platemaking apparatus has: a plate material feed unit consisting of a suction mechanism for feeding and stopping a plate material on an exposure unit, conveyor belts, drive motors and the like; two shielding curtains respectively rolled at two ends of the exposure unit and selectively extended on the exposure unit; shielding curtain drive units for independently driving the two shielding curtains; a setting unit for setting exposure conditions of a document image to be formed on the plate material; and a control unit for controlling the motors of the plate material feed unit and the shielding curtain drive units in a given relationship in response to the conditions set in the setting means, wherein an identical document image is formed on different positions of a single plate material a plurality of times.
A photographic printer includes a RUN/TEST switch which, when in the TEST position, permits a test exposure cycle to be performed without exposing print paper. This allows the operator to test the functioning of the color and density controls and the print lamp prior to the printing operation without wasting print paper.
A photographic printing apparatus is capable of effecting printing on photographic paper from various types of negative film including a negative film of continuous length by replacing a negative film carrier with another. When the negative film carrier is at its printing position, a light receiver opposes the printing light axis, and only an optical system is moved vertically to cope with a change in magnification during a printing operation. At the time of retraction of the negative film carrier, the light receiver is raised together with the optical system, thereby facilitating the replacement of the negative film carrier.
A camera for selectively filming at least two separate types of input images through a first and second object lenses respectively. A mask is positioned between the film and a rotatable lense carrier upon which is mounted the first object lense and mirror which directs the image of the second object lense to the film. The camera may be a microfiche camera for recording a document through the first object lense and for recording the image from a cathode ray tube through the second object lense.
The improved slit scanning exposure apparatus has a variable slit assembly that is provided in proximity with the exposing zone and which is composed of two slit plates movable independently of each other in synchronism with the scannning speed. The apparatus may additionally have a color filter that can be inserted into the optical path of reflected light from the image on a document in the scanning direction. The apparatus is capable of preventing flare from being admitted through an exposure slit to a light-sensitive material on the exposure position when it is being exposed from light reflected from the document image. In addition, the apparatus enables more than one document image to be edited into a single image and permits the color filter to be inserted into the optical path of reflected light without causing unevenness in colors.
