Abstract: An imaging member comprising an overlayer of material preferably photosensitive, on a softenable, electrostatically deformable layer is imaged by frost or relief wrinkling the deformable layer. In a preferred mode, where the overlayer is photosensitive, wrinkling is caused by uniformly electrostatically charging the member, exposing said member to an imagewise pattern of radiation actinic to said overlayer of photosensitive material and softening the softenable, electrostatically deformable layer to cause it to wrinkle thereby effecting the overlayer in a variety of ways to produce a variety of imaged members.

Abstract: There are described novel yellow compounds which are represented by the formula ##SPC1##Wherein X is a member selected from the group consisting of ##SPC2##The compounds may be used for various applications and preferably are utilized as imaging particles in the photoelectrophoretic imaging method.

Abstract: An electrophoretic imaging process wherein a suspension of particles in a carrier liquid are placed between a photoconductive electrode and a second electrode. With an electrical field applied between the photoconductive electrode and the second electrode the photoconductor is exposed to imagewise radiation which causes particles on the surface of the photoconductive electrode to be driven away in image configuration by charge exchange with the photoconductive electrode. The migrating particles form a negative image on the second electrode leaving a positive image behind on the photoconductive electrode.

Abstract: A liquid applicator is provided adapted to apply a uniform liquid film to a surface regardless of the spatial orientation of the liquid applicator.

Abstract: 3-Bromo-N-2"-pyridyl-8,13-dioxodinaphtho-(2,1-b;3',3'-d)-furan-6-carboxamid e is described as a new composition of matter along with its use in electrophotographic and photoelectrophoretic imaging processes.

Abstract: A color image reproduction system wherein there are recorded at different angular orientations on an imaging member at least two images respectively corresponding to the color content of at least two different colors of an original image. Readout illumination provided by an extended light source is converted to a plurality of point sources, directed upon the imaging member and the information-modulated illumination passed through appropriate light filters to provide a reproduction of the original image at an output image plane.

Abstract: A system employing at least one separation roller continuously contacting the outside surface of a web and tracked to move in a fixed approximately elliptical path, for compensating for web motion during separation of the web from another surface to enable a bead of accumulated material built up at the line of contact between the web and the other surface to pass therebetween without changing the web velocity. During the separation period, the advancing velocity of at least one surface is reduced so that at least one surface is advanced at a slower rate than its rate prior to separation, or stopped. In a preferred embodiment, the system is employed in photoelectrophoretic imaging to bypass a bead of imaging suspension built up at the imaging nip during separation of two webs immediately after completion of imaging to thereby permit dissipation or passage of the liquid bead without changing the advancing web velocity by reason of the separation operation.

Abstract: A method of scanning a phase image and rapidly converting it into a video signal is disclosed. The phase image is scanned with collimated light such as from a laser and the diffracted light is detected by fixed detectors and converted into a video signal. In a preferred embodiment, multiple color encoded phase images of a full color original are simultaneously scanned, converted into video signals and electronically manipulated to effect real-time full color masking of the original.

Abstract: A system employing at least one separation roller continuously contacting the outside surface of a web and tracked to move in a fixed approximately elliptical path for compensating for web motion during separation of the web from another surface to enable a bead of accumulated material built up at the line of contact between the web and the other surface to pass therebetween without changing the web velocity. In a preferred embodiment, the system is employed in photoelectrophoretic imaging to bypass a bead of imaging suspension built up at the imaging nip during separation of two webs immediately after completion of imaging to thereby permit dissipation or passage of the liquid bead without changing the advancing web velocity.

Abstract: A color image reproduction system wherein there are recorded at different angular orientations on a deformation imaging member at least two images corresponding respectively to the color content of at least two different colors of an original multicolor image. Readout illumination provided by an extended light source is converted to a plurality of point sources and deflected to the imaged member by a member comprising a transparent substrate carrying a plurality of mirrored areas. The information- modulated illumination is then reflected to provide a reproduction of the original image at an output image plane.

Abstract: This invention relates to a method and apparatus for creating high shear stresses in a particulate suspension prior to use of such suspension for imaging or inking. The method and apparatus in one environment function to stress a thin layer of an electrophoretic suspension of particles in a liquid carrier. The prestressed suspension is better suited than unstressed suspensions for preparing both monochromatic and polychromatic copies from originals by particle migration through the suspension when it is exposed to electromagnetic radiation in image configuration while in an electric field across the suspension between two electrodes. The method and apparatus is also used for printing inks in order to form a prestressed, uniform, thin layer of the ink for application to the press.

Abstract: A solid imaging ink-coated sheet for use in photoelectrophoretic imaging systems comprising a support substrate having adhered to a surface thereof a thin, solid layer of an imaging ink suspension. The imaging ink suspension comprises a plurality of photosensitive pigment particles and thixotropic additive particles dispersed in a carrier liquid.

Abstract: There is disclosed an imaging system for forming a plurality of images on the same surface. The imaging system includes an electro-optic imaging member comprising a voltage or current-sensitive light modulating layer, a layer of photoconductive material which exhibits persistent photoconduction properties and a layer of material capable of generating photoinjection currents when struck by radiation which it absorbs.

Abstract: A dielectric anisotropic material provided in its optical uniaxial state is caused to alter its optical properties along electrode edges by shorting electrodes, changing potential or otherwise modifying the application of an applied electrical field parallel to the optical axis of the dielectric anisotropic material. Electro-optic cells and imaging systems are disclosed using the edge effect accompanying the modification of the applied electrical field.

Abstract: Liquid crystalline compositions having the optical properties of the cholesteric mesophase are disclosed. The compositions comprise at least one nematic liquid crystalline material and at least one potentially cholesteric material which has a molecular structure which is similar to that of a nematic liquid crystal. Uses of the novel compositions are also described.

Abstract: Liquid crystalline compositions having the optical properties of the cholesteric mesophase are disclosed. The compositions comprise at least one nematic liquid crystalline material and at least one potentially cholesteric material which has a molecular structure which is similar to that of a nematic liquid crystal. Uses of the novel compositions are also described.