Abstract: An apparatus in which a belt is supported for movement in a pre-determined path. The lateral movement of the belt relative to the pre-determined path is controlled. A pneumatic system provides pressurized fluid to at least partially support the belt and control the lateral movement thereof.

Abstract: An apparatus in which an endless belt is at least partially supported on the fluid film in a predetermined path of movement. A pneumatic system, responsive to a deviation of the belt from the path of movement, restrains the movement of the belt to the pre-determined path of movement.

Abstract: An apparatus which prevents lateral movement of a belt moving in a pre-determined path. The apparatus includes a readily deformable surface which moves the belt in the pre-determined path and a support for preventing lateral movement. Strains induced in the belt by preventing the lateral movement thereof distort the deformable surface which, in turn, cause the belt to return to the pre-determined path.

Abstract: An optical system is disclosed for substantially doubling the capacity of a photocopying apparatus or the like. It provides alternative modes of operation; adjacent imaging of adjacent objects or double imaging of a single object. In the adjacent imaging mode, a single projection lens projects adjacent images of two adjacent objects in a straightforward way. In the alternative double imaging mode, a pair of projection lenses projects twin images of a single object along "parallel" optical paths. In the double imaging mode, a field stop is included to block light from the vacated half of the object station. The field stop is located near the first lens on its object side.

Abstract: A non-impact printing system is disclosed wherein electrical pulse signals control the lateral movement of a print head and the transfer therefrom of information bits to a receiver. Printing is accomplished by employing various imaging technologies including flash transfer, electrographics, and xerography.

Abstract: A non-impact printing apparatus which employs xerographic techniques to develop a latent image on a transparent photoreceptor and transfer it therefrom to a receiving medium.

Abstract: An electrostatographic imaging apparatus is disclosed. The imaging apparatus includes a photoconductor assembly; means for positioning the inner surface of a dielectric web against the photoconductor whereby an air gap is formed between the photoconductor and the web; charging and exposing means; first and second biased conductive rollers; second charging means to neutralize the first charge; a third biased conductive roller having an insulating coating thereon; a liquid development system; and means for transferring the developed image from the web to an image copy member.

Abstract: An electrostatographic imaging apparatus is disclosed. The imaging apparatus includes a photoconductor assembly; means for positioning the inner surface of a dielectric web against the photoconductor whereby an air gap is formed between the photoconductor and the web; charging and exposing means; second charging means to neutralize the first charge; a conductive roller having an insulating coating thereon, the roller being biased at a potential sufficient to prevent charge transfer from the photoconductor to the web; a liquid developing system; and means for transferring the developed image from the web to an image copy member.

Abstract: An electrostatographic imaging apparatus is disclosed. The imaging apparatus includes a photoconductor assembly; means for positioning the inner surface of a dielectric web against the photoconductor whereby an air gap is formed between the photoconductor and the web; charging and exposing means; a conductive roller which is biased at a potential sufficient to prevent charge transfer from the photoconductor to the web; a liquid developing system; and means for transferring the developed image from the web to an image copy member.

Abstract: An imaging apparatus in which an electrostatic latent image is developed on an insulating web at a development station after which the web is transported to a platen capable of supporting a receiving surface. The web is transported from the development location to the platen in a plane parallel to the axis of the platen. The image is then transferred to a receiving surface supported by the platen. The imaging, development and transfer are controlled by a control logic circuitry.

Abstract: A display device which responds to a light image to form a viewable image. The system is sealed and is filled with a fluid carrying a dilute suspension of particles between electrodes. A photoconductive layer is used on one electrode. Imagewise illumination of the photoconductive layer and application of electrical field between the two electrodes causes particle migration in image configuration which forms a visible image. Using a dark suspension may increase viewability.

Abstract: A photoelectrophoretic image reproduction device wherein a suspension of electrically photosensitive particles in a fluid is provided between two transparent conductive plates. Exposure of the suspension to a light image while field is applied between the plates causes the formation of a viewable image by particles depositing in imagewise configuration on the plates. A dark suspension fluid may be used.

Abstract: Apparatus for depositing magnetic material on a support member having an electrostatic latent image thereon.

Abstract: An electrostatographic copying system in which an image is formed on an imaging surface and transferred at a transfer station to a copy sheet, where the copy sheet is electrostatically transported through the toner transfer station on a belt. As the sheet is loaded onto the belt, skewed spaced fingers hold it against the belt while a corona charge is applied through the fingers to tack the sheet to the belt.

Abstract: Automatic pre-collation document copying in which the documents are loaded upon, and automatically recirculated by, an elongate, windable, air permiable document holding web. These documents are primarily retained between the turns of a spaced pair of oppositely wound scrolls of the web without the use of a vacuum. The web has a minor intermediate unwound segment extending between the two web scrolls where the documents are intermittently exposed for copying by appropriate optical systems for projecting the document images onto a xerographic drum or belt or other imaging surface. The documents are retained on this intermediate segment by a vacuum applied to the opposite side of the web. A drive is provided for recirculatingly winding and unwinding the web between one web scroll and the other so as to recirculatingly expose, in sequence, the individual documents on the web as they appear on the unwound intermediate web vacuum segment.