Abstract: A single lens reflex camera which measures internally-received light and which has a circuit for automatically determining exposure time and including a capacitor which stores an electrical quantity corresponding to the amount of received light, this capacitor being connected to a light-measuring device through an automatic switch. The latter switch normally opens automatically in connection with swinging up of the mirror of the camera just prior to exposure so that the capacitor will store an electrical quantity corresponding to the measured light. The operator of the camera can optionally operate a manually operable structure for manually opening the latter switch, and this manually operable structure may also be connected with a power switch closed in order to render the automatic circuit operative just prior to manual opening of the switch connected to the memory capacitor, an additional power switch being provided as is conventional to be operated by manipulation of the shutter-tripping plunger.
Abstract: A printing system adapted for creating hard copy output from computer generated digital pulses. This system feeds blank or preprinted paper from a paper supply station through a xerographic processor wherein readable computer generated images are created thereon. The information bearing paper is then transported to a paper receiving station which comprises one or more paper receiving bins. Alternatively, an auxiliary feed path for the output paper is created to direct pages, under certain circumstances, to a sample print tray. Paper deflecting fingers are provided to divert pages to the sample print tray under the control of the operator in response to one of four conditions. These conditions include: (a) The feeding of a sample page through the processor when power is first applied to the machine after the machine has been in a powerless state, or (b) After a jam in the system has been cleared and it is desired to abort pages which have not been removed from the paper path.
Type:
Grant
Filed:
January 4, 1973
Date of Patent:
February 3, 1976
Assignee:
Xerox Corporation
Inventors:
Charles F. Willard, Brian D. Marsden, John G. Richardson, James L. Gastonguay
Abstract: A beauty swag lamp comprised of a frame having a top, bottom, and at least one side wall. The frame also has at least one movable door wall. The frame forms a compartment and at least one mirror is within the compartment. When the door wall is open the interior compartment and mirror are exposed for use. A light means is positioned within at least one wall to emit light outwardly from the frame when the door wall is closed.
Abstract: An electrostatic copying machine comprises a photosensitive screen having a number of fine openings therein, means for forming on the screen a primary electrostatic latent image corresponsing to an original image, an electrostatic attracting device for electrostatically attracting a recording material and moving said recording material in facing relationship with the surface of the screen on which the latent image is formed, a device for supplying the recording material to the electrostatic attracting device, and means for forming a secondary electrostatic latent image on the recording material conveyed by the attracting device.
Abstract: A sound motion-picture system employing a film handling cassette within which the film is retained throughout all photographic and audio operations. The film handling cassette includes both an audio station and an exposure-projection station, and the camera and viewer apparatus includes a pair of drive arrangements for progressively advancing incremental sections of such film across the exposure-projection station and for substantially uniformly advancing the film strip through the audio station. To isolate these different film motions, the drive arrangements cooperate with the cassette to provide a free loop of film extending exteriorly of the cassette. A sensing element monitors the loop of film and adjusts one of the drives so as to retain the loop within predetermined limits. In the camera, the audio drive is coupled to the start switch so as to displace the audio drive into a standby position when the camera is not being operated.
Abstract: A toner image is transferred from a toner substrate to a transfer sheet by bringing the toner substrate and the transfer sheet into face to face contact and applying a vibration thereto, while simultaneously applying pressure and/or an electrical field across the substrate and transfer sheet.
Abstract: A viewfinder assembly for a camera having a door for access to the interior wherein the viewfinder, when properly positioned to permit pictures to be taken, blocks the door. The assembly comprises a support barrel mounted on a camera lens and a main body section adapted to support optical elements therein. An eyepiece is at one end of the main body section and extends outwardly therefrom. The invention includes mounting means for rotatably mounting the main body section on the support barrel to permit rotation of the viewfinder assembly to a position wherein the door is no longer blocked.