Abstract: Disclosed is a fuser member comprising a substrate, a layer thereover comprising a polymer, and, on the polymeric layer, a coating of a release agent comprising a mixture of (a) an organosiloxane polymer concentrate containing amino-substituted or mercapto-substituted organosiloxane polymers, wherein there are amino or mercapto functional groups on at least some of the polymer molecules of the concentrate, said concentrate having a degree of functionality of from about 0.2 to about 5 mole percent, said concentrate having a viscosity of from about 50 to about 500 centistokes; and (b) a nonfunctional organosiloxane polymer diluent, said diluent having a viscosity of from about 100 to about 2,000 centistokes; said mixture having a degree of functionality of from about 0.05 to about 0.4 mole percent, wherein the mixture has a viscosity of from about 100 to about 1,000 centistokes, and wherein the ratio by weight of concentrate to diluent is from about 1:2 to about 1:30.

Abstract: A method and apparatus for determining the location of an object. An object to be located can be provided with an object locator that includes a display. When the object locator receives a signal indicating that the object associated with the object locator is to be located, the display changes display state to provide a visual indication that the signal has been received. The object locator can be ambient energy-powered, and the display can be a bistable display, such as a rotating element display device.

Abstract: The disclosure relates to separating and feeding previously printed document sheets from a stack with reduced inter-sheet document image smearing using a retard-type sheet separator-feeder. For duplex documents, the intermittent drive system for the retard feeder drives the sheet being fed downstream out of the retard nip for only a short initial feeding distance which is only a minor portion of the document dimension, then reverse drives the sheet in the upstream direction for only a short reverse distance sufficient to eject all the sheets from the retard nip other then the one being fed out. Meanwhile a nudger system feeding sheets from the stack to the retard nip is disengaged. Then the feeder is driven in the downstream sheet feeding direction again, but for a much longer sheet feeding distance, Thus, the sheet being fed by the retard feeder may be fed out of the retard nip without duplex document image smearing against other sheets in the retard nip.

Abstract: A container for storing a supply of toner particles therein is used in a developer unit of an electrophotographic printing machine. The container has a discharge port connected to a chamber storing the supply of toner therein. A movable member is positioned in the chamber of the container. The movable member includes a planar surface. When the planar surface is positioned remote from the discharge port, the planar surface receives toner particles. When the planar surface is positioned in engagement with the discharge port, toner particles are discharged from the planar surface through the discharge port. In this way, the member functions to seal the toner container when the toner container is in an non-operative position remote from the developer unit, and to meter precise quantities of toner particles to the developer roller of the developer unit when the toner container is in the developer unit in the operating mode thereof.

Abstract: A process for the preparation of a liquid developer comprised of thermoplastic resin particles, pigment, a charge additive or adjuvant, and a charge director, which process comprises a supercritical solvent extraction to enable a developer with a high solids content.

Abstract: A process for the preparation of an ink comprised of an organic solvent, a colorant and a latex, and wherein the latex is generated from the polymerization of a mixture of an anionic surfactant, a nonionic surfactant, and a mixture of olefinic monomers, followed by the addition of an organic solvent.

Abstract: A system and method classify a pixel of image data as one of a plurality of image types. A first image characteristic value for the pixel, a second image characteristic value for the pixel, a third image characteristic value for the pixel, and a fourth image characteristic for the pixel is determined. Some of these determinations may be resolution dependent. The values from these determination are utilized in assigning an image type classification to the pixel. Moreover, if at least one of the image characteristic values is greater than a predetermined threshold value the pixel is classified as a halftone peak value.

Abstract: An online printing parameter establishment apparatus is used with a xerographic printing device for printing high quality prints given a target value. The xerographic printing device is capable of producing at least one print control patch on a photoreceptor and is capable of sensing a value of the at least one print control patch. The xerographic printing device has a plurality of sets of inherent performance characteristic values. The online printing parameter establishment apparatus includes a controller device and a switch device. The controller device is operative to produce a first database of different ones of the sensed values. Each sensed value is associated with a respective one of the plurality of sets of inherent performance characteristic values based upon the target value. The controller device is also operative to produce a second database of a plurality of control values.

Abstract: A system and method electronically image process a pixel belonging to a set of digital image data with respect to a membership of the pixel in a plurality of image classes. This process uses fuzzy classification to determine a membership value for the pixel for each image classes and generates an effect tag for the pixel based on the fuzzy classification determination. The pixel is image processed based on the membership vector of the pixel. The determination of the membership value also includes the determination of the halftone frequency of the pixel. The present process injects random noise into the frequency estimate before classification to avoid having a sharp shift in the pixel classification population as the ripple in the frequency microclassifier crosses the quantization threshold.

Abstract: An optically readable record for storing encoded information comprises (1) a recording medium, (2) a self-clocking data code for encoding the information, with this data code being composed of glyphs that are written in a two dimensional code field on the recording medium on centers that are spatially distributed in nominal accordance with a predetermined spatial formatting rule. The glyphs are defined by respective symbols that are selected from a finite set of optically discriminable symbols to encode the information. Further, there is at least one additional glyph pattern that is written on the recording medium in nominal accordance with the aforementioned spatial formatting rule, with this additional code pattern being discriminable from the data code and being selected to disambiguate data codes that are rotated and/or reflected.

Abstract: A solid state imaging device comprising: a plurality of photosensitive pixels for scanning an optical image signal falling thereon and converting the same photoelectrically which are arranged in parallel to one another in a main scan direction, wherein the photosensitive pixels are respectively formed in a triangle or in a trapezoid, the two mutually adjoining ones of the photosensitive pixels are positioned in point symmetry in which the two mutually adjoining photosensitive pixels are rotated in 180° about a point from each other, and the oblique sides of the two mutually adjoining photosensitive pixels are opposed to and in contact with each other.

Abstract: Mapping of full color images to two-highlight color images which provides excellent results for both pictorial image and presentation graphics applications is described. Shades and tints for each hue in the original full color image are mapped to a corresponding triangle of colors in a tetrahedral of possible colors defined by the two highlight colors. The apex of the triangle of colors is varied within the tetrahedral of possible colors according to hue. Differentiations in the result colors for the fully saturated cases is provided while preserving the relative saturation and lightness behavior. The triangle of colors maps to a first triangle bordering one side of the tetrahedral, the first triangle corresponding to a first one of the highlight colors or a second triangle bordering another side of the tetrahedral, the second triangle corresponding to a second one of the highlight colors when the hue of the original colors matches one of the highlight hues.

Abstract: A printbar, such as a full width array printbar, filling method and apparatus provides for the selective application of positive pressure to an ink container, such as an ink bag, for forcing the expulsion of ink out of the bag and into the printbar. A steady force is applied until ink appears in a window provided in a vent line adjacent to and in fluid communication with the printbar, at which time the printbar manifold is full. Additional steady pressure forces ink to flow into the ink jet channels, assuring that the channels are fully primed and functional, at which time the positive pressure can be stopped. In an alternative embodiment, a motive force provided by, for example, a solenoid or motor, preferably including a gear and cam, are included to provide the motive force for the application of pressure against the ink bag. Pressure limiting springs may be utilized to provide the desired positive pressure to the ink manifold.

Abstract: A composition which comprises a mixture of (A) a first component comprising a polymer, at least some of the monomer repeat units of which have at least one photosensitivity-imparting group thereon, said polymer having a first degree of photosensitivity-imparting group substitution and being of the formulae specified in the claims, and (B) a second component which comprises either (1) a polymer having a second degree of photosensitivity-imparting group substitution lower than the first degree of photosensitivity-imparting group substitution, wherein said second degree of photosensitivity-imparting group substitution may be zero, wherein the mixture of the first component and the second component has a third degree of photosensitivity-imparting group substitution which is lower than the first degree of photosensitivity-imparting group substitution and higher than the second degree of photosensitivity-imparting group substitution, or (2) a reactive diluent having at least one photosensitivity-imparting group per

Abstract: Multiple pulse width and position modulation methods and systems use multiple pulse width and position modulation (PWPM) circuits driven from the same system clock and video data to provide multiple video pulses per clock period. The multiple pulse width and position modulation methods and systems separately provide extremely fine halftone structures from n-bit per pixel video data words. The halftone structures can be provided without the need for extremely high resolution raster output scanners, associated optics and high speed electronics. The multiple pulse width and position modulation system (PWPM) can produce video pulses of variable width and position within a pixel period with extremely high addressability. The pulses output from multiple, independent pulse width and position modulation (PWPM) channels can be combined to form structured multiple video pulse patterns within the video clock or pixel period from a given n bit video data word.

Abstract: An annular metal layer is provided between a conductive oxide layer and a dielectric mirror in a vertical cavity surface emitting laser. The annular metal layer defines the output window for the laser cavity which matches the TEM00 fundamental mode of the light beam emitted by the active region of the VCSEL. The metal layer outside the output window provides modal reflectivity discrimination against high order transverse modes of the light beam emitted by the active region of the VCSEL.

Abstract: Disclosed is a process which comprises (a) providing a migration imaging member comprising (1) a substrate, (2) an infrared or red light radiation sensitive layer comprising a pigment predominantly sensitive to infrared or red light radiation, and (3) a softenable layer comprising a softenable material, a charge transport material, and a photosensitive migration marking material predominantly sensitive to radiation at a wavelength other than that to which the infrared or red light sensitive pigment is predominantly sensitive; (b) uniformly charging the imaging member; (c) subsequent to step (b), uniformly exposing the charged imaging member to a source of activating radiation with a wavelength to which the migration marking material is sensitive, wherein a filter comprising the infrared or red light radiation sensitive pigment is situated between the radiation source and the imaging member; (d) subsequent to step (b), exposing the imaging member to infrared or red light radiation at a wavelength to which the

Abstract: A method for controlling a maintenance unit in a printer includes determining an image type of an image to be printed, the image type being selected from at least a first image type and a second image type different from the first image type, setting a maintenance interval for the maintenance unit in accordance with the image type, wherein a maintenance interval for the first image type is different from a maintenance interval for the second image type. A printer embodying such a method, and in particular a printer for printing an image an a substrate, includes a printhead, a maintenance unit for performing periodic maintenance on the printhead, and a controller for controlling said maintenance unit according to the described method.