Abstract: There is disclosed a chuck assembly defining a longitudinal axis for internally holding a hollow substrate having an open first end and a second end including: (a) an alignment shoulder positioned along the longitudinal axis; (b) an end portion, positioned along the longitudinal axis, that is adapted to be inserted into the substrate through the open first end and comprised of a polymeric member, wherein the polymeric member has a changeable width including a smaller width to permit insertion of the polymeric member into the substrate and a larger width to contact the polymeric member with the substrate inner surface, and the polymeric member is moveable along the longitudinal axis; and (c) a width changing apparatus operatively coupled to the polymeric member, wherein the polymeric member, which is in contact with the substrate inner surface, pulls the substrate a distance along the longitudinal axis towards the alignment shoulder when the polymeric member moves towards the alignment shoulder.

Abstract: The polarity of the semiconductor layers in an AlGaInP semiconductor laser fabricated by impurity induced layer disordering (IILD) is reversed to allow n-doping. Thus, the cladding and confinement layers between the substrate and the active layer will have p-type conductivity. The upper confinement, cladding, and contact layers can be either n or p-type conductivity with n-diffused regions formed by IILD extending down from the contact layer to the lower cladding layer. The electrodes can include either a substrate electrode or a lateral electrode.

Abstract: An automatic method of generating key phrases for a machine readable document. The method begins by breaking the text of the document into multi-word phrases free of stop words which begin and end acceptably. Afterward, the most frequent phrases are selected as key word phrases.

Abstract: A sheet feeding system for an imaging system with a sheet input tray into which sheets are loaded onto the upper surface to be fed downstream, with a sheet sensing system for automatically providing different electrical control signals in response to different sheet sizes and different orientations of the sheets loaded into the tray, with sensor actuators projecting into the tray at different preset positions, each actuator being movably mounted to normally project upwardly through an aperture in the tray until operatively engaged by the sheets loaded onto the sheet input tray extending over the preset position of the actuator. Each actuator has an operative shape tapering upwardly from a relatively large base to a relatively small tip to provide laterally angled sheet engagement surfaces on at least three lateral sides thereof, preferably pyramid shaped.

Abstract: A digital printer for printing images in response to full-frame, two-dimensional digital image data input from an outside source. The digital printer is a novel combination of a two dimensional backlight for producing full frame illumination in a single flash, a photoreceptor sensitive to light emanating from the backlight, a two-dimensional, transmissive light valve, an imaging system, and a driver. The light valve is disposed between the backlight and the photoreceptor so that light from the backlight is transmitted through the light valve, producing a full-frame, two dimensional image on the photoreceptor in response to a single flash of the backlight. The full-frame, two dimensional image corresponds to a pattern formed on the light valve in response to the full-frame, two dimensional digital image data. The imaging system is disposed between the light valve and the photoreceptor, such that it focuses the full-frame, two dimensional image onto the photoreceptor.

Abstract: An information processing method and an information processing system for recording information concerning a distribution route of one information, thereby enabling the information distribution route to be traced later. Information held in an information holding section 11 has distribution history information held in an information label section. When information is sent from one information intervention system to another information intervention system, a distribution history write section 15 reads a system identifier from a system label section 14 and adds a sending history to the distribution history information of the information. When information is received from another information intervention system, likewise a reception history is added to the distribution history information of the information. A tracing result display section 16 fetches the distribution history information of specified information, carries out an analysis on it, and displays the analysis result in a predetermined display format.

Abstract: A composition comprised of a core and thereover a mixture of a first and second polymer, and wherein said first polymer contains a conductive component, and said second polymer is a poly(urethane).

Abstract: A system includes a sensor array with scan lines, data lines, and, for each cell, a sensing element and a switching element. Each sensing element includes a charge collection electrode. The sensing elements are stimulated during an interval in which data lines are electrically connected to a fixed potential, reducing induced charge and crosstalk. The stimulation could, for example, be x-ray radiation. Then, during a following interval, a scan signal has a duty interval after which signals are read out from the data lines. During stimulation, the data lines can be connected to ground or can be connected to virtual ground by resetting their sense amplifiers.

Abstract: A halftone generator for generating tint dots that are more circular than typical Holladay dots. Two threshold arrays are used, one that is pixel-centered and one that is interstice-centered. For each signal input level, the one that will produce a more circular dot will be selected by a look-up table driven by the image signal input. A single array version can also be used. The stored array has pixel-centered thresholds at one end and interstice-centered thresholds at the other. The circuit can either choose an array output or an inverted array output to generate either pixel-centered or interstice-centered light and dark coverage.

Abstract: A process for the preparation of polymer compositions which comprises mixing a conductive component with an anionic polymeric latex containing a polymer; adding a cationic surfactant, or flocculant whereby the aggregation of the latex particles and the conductive component particles results; subsequently adding colloidal stabilizer, followed by the addition of a base to obtain a pH of from about 7 to about 12; heating above about the polymer glass transition temperature thereby enabling the severage, or breakage of the formed aggregated particles; further heating above about the polymer glass transition temperature enabling the coalescence of the polymer and conductive component particles; and optionally washing and drying the resulting coalesced product.

Abstract: A donor roll for transporting marking particles to an electrostatic latent image recorded on a surface is provided. The donor roll includes a rotatably mounted body and an electrode member mounted on the body. The donor roll further includes a magnetically permeable core external to the body. The core rotates with the body. The core is composed of a plurality of wires. The donor roll further includes an electrically conductive material positioned on the core. The material is electrically connected to the electrode member.

Abstract: A method of making a conductive fiber in which the conductive fiber is formed from a mixture including at least one fiber forming material and conductive magnetic materials, and the conductive magnetic materials are migrated toward the periphery of the fiber by application of a magnetic field to the fiber. The conductive fibers having the conductive magnetic materials located at the periphery of the fiber are preferably incorporated into an electrostatic cleaning device for use in an electrostatographic printing device.

Abstract: An annotation system for automatically recording additional image information on an image bearing member is provided. The system includes an occluding device assembly, including an occluder bar for masking the image bearing member in a predetermined region to allow for the additional image information to be recorded thereon, a light emitting source for producing a light image of the additional image information, and a drive apparatus for simultaneously selectively positioning the occluder bar and the light emitting source with respect to an image area on the image bearing member.

Abstract: An ink jet printhead cartridge having a fluid valved breather. The ink jet printhead cartridge includes a housing having an air inlet, an ink outlet, a first chamber, and a second chamber. The first chamber contains a supply of ink and is substantially free of ink-retaining foam. The second chamber includes an ink-retaining foam which saturates with ink for supply to an ink jet printhead. An air transfer passageway connects the first chamber to the second chamber so that air pressure affects the level of ink in the first chamber thereby maintaining a level of ink in the second chamber sufficient for supplying ink to the ink jet printhead.

Abstract: An image reading device of the type in which a display panel is laid over a document table and an image on an original document is input through the display panel. In the image reading device, the display panel is a liquid crystal panel of the transmission type in which liquid crystal/polymer composite material is sandwiched by electrodes, and at least one of the electrodes sandwiching the liquid crystal/polymer composite material consists of a plurality of divided electrodes. Further, a gap between the adjacent divided electrodes is shorter than a minimum resolution distance in a location of the display panel of the image reading device. Alternatively, an electrode layer may be provided covering the gap between the adjacent divided electrodes in a state that an insulating layer is layered between the electrode layer and the gap. The ends of the divided electrodes may overlap with each other, with an insulating layer being layered therebetween.

Abstract: Developed image noise is reduced by momentarily breaking the close range forces holding toner non-uniformly to a charge retentive surface in an electrostatic image. The source of the image noise can be of a mechanical nature, such as, raking by carrier beads in conventional two component development. The short range forces are broken by applying ultrasonic vibration to the charge retentive surface.

Abstract: A method for electrical tailoring of thermal ink jet heater elements. The resistance of ink-jet heater elements formed of polysilicon is changed by applying energy through the resistor element of varying amounts at varying pulse widths. The application of pulsed current for up to 1 second total pulse width at voltages of up to 50 volts decreases the resistance by as much as thirty percent or more of the as fabricated values.

Abstract: A hyperacuity printing system for rendering image data on a recording medium, the image data being rendered as an array of pixels across the recording medium in a fastscan direction, and an orthogonal slowscan direction. The system includes a data source for supplying grayscale input image data and a scanning device for rendering grayscale output image data, the scanning device having a writing device for writing scan spots on the recording medium at a writing pitch in the slowscan direction and a writing pitch in the fastscan direction. The system also includes transformation circuitry for transforming the grayscale input image data into grayscale output image data, the transformation circuitry including a halftoner, a thresholder, and a selection device, where the selection device selects either the thresholder or the halftoner to provide the grayscale output image data.

Abstract: A transfer apparatus is provided which is capable of effectively preventing a defect in transference caused from a gap between a transfer member and an intermediate transfer belt to form an excellent image free from an image defect such as whitening. The transfer apparatus for an image forming apparatus for primarily transferring a toner image formed on an image holding member to an intermediate transfer belt and then secondarily transferring the image, which has been primarily transferred onto the intermediate transfer belt, to a transfer member, includes a transfer unit for secondarily transferring the image having a transfer roll separably disposed on the surface of the intermediate transfer belt, which holds the toner image, and an opposite roll disposed to be in contact with the inner surface of the intermediate transfer belt at a position at which the opposite roll is opposite to the transfer roll.

Abstract: In a xerographic development unit, particularly a unit for applying single-component magnetic toner such as used in MICR printing, the end of a donor roll which applies toner to the surface of a charge receptor is provided with a magnetic seal. The magnetic seal extends around at least a portion of the circumference of the roll, and defines a set of alternating magnetic poles arranged in bands which alternate along the length of the roll. The magnetic seal forms a uniform gap relative to the surface of the roll, the gap being sufficiently large to allow a turnover of toner particles therethrough. The design minimizes mechanical stresses on the toner, which in turn avoids the generation of frictional heat in the toner. A member defining magnetic poles can also be used as a shim for mounting a charge/metering blade within the development unit.