Abstract: In a process for producing a chlorogallium phthalocyanine crystal comprising mechanically dry-grinding chlorogallium phthalocyanine and subjected to crystal conversion, the weight ratio of chlorogallium phthalocyanine to the grinding media is set at a range of from 1/5 to 1/000. The resulting chlorogallium phthalocyanine crystal excels in the dispersibility in a binding resin and the stability in the dispersion.

Abstract: A technique for automatically generating thematic summaries for machine readable representations of documents. The technique begins with determining the number of thematic terms to be used based upon the number of thematic sentence to be extracted. To insure some commonality of theme between extracted sentences, the number of thematic terms used should be less than the number of thematic sentences to be extracted. Having determined the appropriate number of thematic terms, next the method identifies the thematic terms within the document. Afterward, each sentence of the document is scored based upon the number of thematic terms contained within the sentence. The desired number of highest scoring sentences are selected as thematic sentences.

Abstract: An apparatus for maintaining a uniform temperature along its axis by increasing the heat transfer efficiency. The apparatus uses a sealed chamber containing a substantially pure working fluid in a two phase (liquid and vapor) condition. The vaporization and condensation of the fluid increases the heat transfer efficiency and tends to equalize temperature gradients in a body in contact with the apparatus. The apparatus is utilized in various locations in an electrophotographic printing machine and can be used as a pressure roll for a heat and pressure fuser, a support or drive roll for a photoreceptive member, a support member for a photoreceptor and a heat sink for a developer housing.

Abstract: A method and apparatus for determining the level of roughness in a paper or other substrate to be processed in a machine, and for correspondingly adjusting the machine parameters that are affected by the different levels of substrate roughness, before the substrate is processed through the machine.

Abstract: A chuck assembly for engaging the inner surface of a hollow substrate including: (a) a body defining a hole, wherein the hole is positioned to be in communication with the air inside the substrate; and (b) a gas pressure regulating apparatus coupled to the hole for regulating the gas pressure inside the substrate.

Abstract: A printing system that uses a halftone processor is driven to halftone selected areas of an image based on a selected halftone dot, wherein the halftone dot has the properties of maintaining a dot fill order of a desired dot, while also maintaining a preselected percentage of the dot as untilled space.

Abstract: A color printer calibration method for improving printer accuracy for particular colors provides a look up table with a plurality of nodes useful as table indices. In such a table, nodes are provided specifically indexing selected colors, so that such colors are obtainable without interpolation. The planes in which the selected colors are found replace the nearest standard planes, so the spacing of the table through the space is approximately retained.

Abstract: An apparatus for maintaining an ambient condition about a marking module. The apparatus includes a substantially air impervious enclosure defining a chamber having the marking module disposed therein. An air flow source supplies air to the chamber, and sensors respond to the amount of air flow to control the air flowing from the air source.

Abstract: A sensing system for a print development system of a printing system in which a print is developed with developer material and development of the print varies as a function of both a first parameter and a second parameter is provided. The development system includes a capacitance and the sensing system, which measures a first value varying as a function of the first parameter and a second value varying as a function of the second parameter, includes a sensing subsystem for measuring an output by reference to the capacitance; and a signal development subsystem, responsive to the sensing system, for developing, from the output, both a first signal and a second signal with the first signal corresponding to the first value and the second signal corresponding to the second value.

Abstract: A heat and pressure roll fuser is disclosed for fixing powder images to various substrates. Each of the rolls has a deformable outer layer. One of the rollers is crowned such that its center has a larger diameter than its ends. The other roller has a uniform diameter along its entire length. The difference in the center diameter and the end diameters is such that the fuser produces a substantially uniform nip and a uniform nip velocity. A flared pressure roll is provided for controlling the speed of substrate edges to compensate for waviness along the substrate edges, such waviness being due to moisture picked up by the substrates while being stored prior to being used for duplex imaging.

Abstract: A method for a sender to automatically distribute information to a receiver on a network using devices (such as printers and facsimile machines) and communication channels (such as electronic mail) defined in a receiver profile. The receiver profile establishes the properties and mode for receipt of information for receivers on the network and the profile is published in a network repository for all network users or is accessible by selected groups or individuals on the network. Receivers have additional control over network senders by defining an information filter which further controls sender channel access (to a receiver) by defining some channels as having priority of access such as direct or delayed access, as well as selectively permitting senders to override the receiver profile. Consequently, receiver profiles provide a variable receiver definable link to senders using multiple forms of media as well as multiple hardware platforms and network configurations.

Abstract: A process for minimizing the amount of wax that escapes from a toner which comprises melt mixing toner resin and pigment, and injecting a water emulsified wax composition therein, and wherein the generated wax domain size range is from about 50 to about 1,500 nanometers.

Abstract: An electrophotographic photoreceptor excellent in electric characteristics and having few defects in image quality, and an image forming method for forming an image free from defects in image quality by the contact charging system. The inventive electrophotographic photoreceptor comprising a conductive substrate having thereon an undercoat layer and a photosensitive layer, in which the undercoat layer comprises a copolymer resin having a hydrolytic silyl group. The copolymer resin having hydrolytic silyl groups is preferably an acrylic copolymer resin. Further, the undercoat layer may contain electrically conductive particles. When an image is formed using this electrophotographic photoreceptor, a method comprising contacting a charging device with a surface of the electrophoto-graphic photoreceptor and supplying charge from the outside to charge the photoreceptor can be employed.

Abstract: A technique for automatically training a set of character templates using unsegmented training samples uses as input a two-dimensional (2D) image of characters, called glyphs, as the source of training samples, a transcription associated with the 2D image as a source of labels for the glyph samples, and an explicit, formal 2D image source model that models as a grammar the structural and functional features of a set of 2D images that may be used as the source of training data. The input transcription may be a literal transcription associated with the 2D input image, or it may be nonliteral, for example containing logical structure tags for document formatting, such as found in markup languages. The technique uses spatial positioning information about the 2D image modeled by the 2D image source model and uses labels in the transcription to determine labeled glyph positions in the 2D image that identify locations of glyph samples.

Abstract: Electroconductive fibers with electrically conductive filler suffused through or coated upon the surface of the filamentary polymer substrate and being present inside the filamentary polymer substrate as a uniformly dispersed phase adhered to the polymer substrate in an annular region located at the periphery of the filament and extending inwardly along the diameter thereof, wherein the electroconductive fibers are suitable for miniature cleaning brushes for an image forming apparatus are disclosed.

Abstract: An ink composition comprised of a colorant and an imide or bisimide with a viscosity of from about 1 centipoise to about 10 centipoise at a temperature of from about 125.degree. C. to about 180.degree. C., and which imide or bisimide is of the Formulas I or II, respectively: ##STR1## wherein R is a hydrocarbon of from about 2 to about 50 carbon atoms; R' is an alkylene hydrocarbon or a polyalkyleneoxide, each with from about 2 to about 30 carbon atoms; and X is an arylene of from 6 to about 24 carbon atoms, or an alkylene of from about 2 to about 10 carbon atoms.

Abstract: A heat and pressure roll fuser is disclosed for fixing powder images to various substrates. Each of the rolls has a deformable outer layer. One of the rollers is crowned such that its center has a larger diameter than its ends. The other roller has a uniform diameter along its entire length. The difference in the center diameter and the end diameters is such that the fuser produces a nonuniform nip and a uniform nip velocity.

Abstract: A printing apparatus including a processing section for transferring a developed image onto a copy sheet and a finishing section for receiving plural copy sheets to generate a print set is disclosed. The apparatus includes a first sheet feeding apparatus associated with the processing section for feeding the sheets through the processing station at a first translational speed and a second sheet feeding apparatus associated with the finishing section for feeding the sheets to the finishing section at a second translational speed. The apparatus also includes a sheet transfer apparatus for transferring the sheets from the first sheet feeding apparatus to the second sheet feeding apparatus, for changing the speed of the sheets from the first translational speed to the second translational speed and for positioning adjacent sheets in the second feeding apparatus in a spaced apart relationship therebetween defining a space between adjacent sheets.

Abstract: A seamed flexible belt and process for fabricating the belt is disclosed.

Abstract: A process for the preparation of a combination of color toners comprised of a cyan toner, a magenta toner, a yellow toner, and a black toner, each of said toners being comprised of resin and pigment, and wherein the pigment is cyan, magenta, yellow and black, each of the said pigments are dispersed in a nonionic, or neutral charge surfactant, and wherein each toner in the combination is prepared by(i) preparing a pigment dispersion, which dispersion is comprised of a pigment and nonionic water soluble surfactant;(ii) shearing said pigment dispersion with a latex or emulsion blend comprised of resin, a counterionic surfactant with a charge polarity of opposite sign to that of said ionic surfactant and a nonionic surfactant;(iii) heating the above sheared blend below about the glass transition temperature (Tg) of the resin to form electrostatically bound toner size aggregates; and(iv) heating said bound toner size aggregates above about the Tg of the resin.