Abstract: A predetermined sheet retaining plane C for absorbing a record sheet is provided in the circumferential surface of a sheet carrier, and a low-reflectivity area which is to be partially covered with the record sheet is provided at a leading portion of the sheet retaining plane C. Reflection photosensors for detecting the reflectivity of the sheet carrier including the low-reflectivity area are disposed around the sheet carrier. Whether a record sheet is held in the sheet retaining plane C is judged on the basis of detection signals of the photosensors.

Abstract: Input image data define an input image set that shows a graphical feature and editing marks indicating an editing operation to be performed on the graphical feature. The input image data are used to obtain operation category data indicating whether the editing operation would translate the graphical feature so that it is centered at a different position within the input image set. The operation category data are used to obtain output image data defining an output image that includes an edited version of the input image set. The output image shows the graphical feature centered at a different position only if the operation category data so indicate. The input image set can include an original image showing the graphical feature and an overlay image showing the editing marks. The editing marks can form a node-link structure with the graphical feature.

Abstract: Disclosed is a recording sheet which comprises a substrate and a material selected from the group consisting of purine compounds, pyrimidine compounds, benzimidazole compounds, imidazolidine compounds, urazole compounds, pyrazole compounds, triazole compounds, benzotriazole compounds, tetrazole compounds, pyrazine compounds, and mixtures thereof. Also disclosed is a recording sheet which consists essentially of a substrate, at least one material selected from the group consisting of purine compounds, pyrimidine compounds, benzimidazole compounds, imidazolidine compounds, urazole compounds, pyrazole compounds, triazole compounds, benzotriazole compounds, tetrazole compounds, pyrazine compounds, and mixtures thereof, an optional binder, an optional antistatic agent, an optional biocide, and an optional filler.

Abstract: An electrocapillary color display sheet is disclosed which utilizes a plurality of sets of different color droplets between two sheets in which each set of droplets will create a pixel of an image. Each set of droplets has at least two droplets in which each droplet has a different color. On one of the sheets there is a first type electrode for each set of droplets. Each first type electrode has at least two holes and each hole holds one second type electrode. Each second type electrode corresponds to one droplet of the corresponding set of droplets. There is also an addressable electrical connection to each droplet. By selectively activating droplets of each set of droplets and its corresponding first type electrode and second type electrode, at least one of the droplets of the set will expand in a space commonly shared by the droplets of each set to create a colored pixel.

Abstract: A method and apparatus for eliminating the accumulation of triboelectric negative toner that occurs between the cleaning edge of the cleaning blade and the photoreceptor surface. After image transfer, the residual toner particles on the photoreceptor surface are then charged to a uniform polarity using either a preclean corotron or a biased conductive blade. A UCA is used to dislodge the residual toner particles away from the photoreceptor surface. The polarity of the particles is opposite to that of the collection roll positioned to attract the toner particles levitated by the UCA onto the collection roll.

Abstract: A valve for selecting an ink from a plurality of different types of inks having no dead spaces to prevent ink of one type from contaminating ink of a second type. The valve includes a selecting member with a channel and a housing having first, second and third passages. The housing defines with the valve a cleaning chamber in communicating relation with the channel and the first, second, and third passages. The cleaning chamber receives a solvent between changing from one ink to another ink which cleans the selecting member and chamber thereby preventing mixing of inks of different types.

Abstract: An apparatus for processing an input image, represented by an input bit stream including a plurality of first bit sets, is provided. The apparatus includes a device for processing the input bit stream in such a manner that each of the first bit sets is represented by a second bit set with each of the second bit sets having less bits than each of the first bit sets and a selected number of bits in the input bit stream, corresponding to image-related information, being discarded as a result of the encoding. The apparatus is provided with an electronic volatile memory for storing a resulting encoded bit stream and a bit stream analyzer for analyzing the stored encoded bit stream to generate positional signals. The apparatus is further provided with a reconstruction circuit for reconstructing the stored encoded bit stream, by reference to the positional signals.

Abstract: There is provided an accounting system for a document processing system which executes one or more jobs with multiple document processing facilities. One of the jobs is identified by a unique identifier and has its origin in a document in a hardcopy or electronic form. A first portion of the one job is processed with a first one of the multiple document processing facilities, in accordance with a first set of control instructions, to result in a first accountable event characterized by a first set of one or more attribute values, and a second portion of the one job is processed with a second one of the multiple document processing facilities, in accordance with a second set of control instructions to result in a second accountable event characterized by a second set of one or more attribute values.

Abstract: A lateral sheet registering device for registering sheets transported along a predetermined path including a lateral registration edge positioned along the path. An active lateral registration apparatus urges sheetlike material into contact with a registration edge guide member as the material is advanced in a process direction of travel. A wear resistant contact surface is provided along an inboard side of the registration edge guide by mounting a plurality of dowel pins fabricated from a particularly wear resistant material along the registration edge guide. The dowel pins are mounted so as to be rotatable and/or replaceable without the requirement of replacing the registration edge guide or removing the sheet handling system.

Abstract: An image forming apparatus capable of preventing a transfer material detecting unit from making any detection error when the surface of a transfer drum becomes opaque, and restraining transfer film replacement intervals from being shortened with a simple constitution. The image forming apparatus is provided with a transfer material detecting unit for detecting conditions in which a transfer material is conveyed on a transfer material carrier, and a transfer material peeling unit for peeling the transfer material off the transfer material carrier by contacting the surface of the transfer material carrier. At least part of the transfer material peeling unit is disposed so that it at least linearly contacts the axial surface of the transfer material carrier at the same position as that of the transfer material detecting unit in the axial direction of the transfer material carrier.

Abstract: An iterative method of determining the topical content of a document using a computer. The processing unit of the computer determines the topical content of documents presented to it in machine readable form using information stored in computer memory. That information includes word-clusters, a lexicon, and association strength values. The processing unit beings by generating an observed feature vector for the document being characterized, which indicates which of the words of the lexicon appear in the document. Afterward, the processing unit makes an initial prediction of the topical content of the document in the form of a topic belief vector. The processing unit uses the topic belief vector and the association strength values to predict which words of the lexicon should appear in the document. This prediction is represented via a predicted feature vector.

Abstract: A system and method for unsupervised clustering of audio data segments in an audio data recording containing speech from multiple speakers including the steps of: 1) providing a portion of the audio data containing speech from all of the speakers; 2) forming initial clusters by dividing the portion of the audio data into segments, each of which includes an ordered data set; 3) computing the pairwise distance between each pair of clusters using a likelihood ration independent of the order of data within the segments; and 4) combining into a new cluster the two clusters with a minimum pairwise distance. These steps are repeated until a number of clusters equal to the number of speakers is obtained.

Abstract: A digital scanner includes a multipurpose registration member that has a document registration edge locate surface, a carriage horizontal locate surface, a carriage vertical locate surface, and a platen locate surface. The platen locate surface provides registration for a transparent platen and the document registration edge locate surface provides registration for a registration edge member. The carriage horizontal locate surface and the carriage vertical locate surface provides registration for a scanning carriage which abuts the slide pad. Also, the multipurpose registration member includes a document handle locate surface to registration a document handler. The inclusion of these locate surfaces on a single registration member enables efficient assembly, without extraneous manual adjustments, of a digital scanner having proper registration.

Abstract: The present invention provides a means and method for efficiently and automatically monitoring and adjusting the power output of either a single or a dual beam laser diode array used to provide the scanning beams in a ROS system. Collimated light outputs from a collimator lens assembly following either a single or dual beam laser are reflected along an optical path to impinge on one or two photodiodes positioned so as to intercept the reflected light. The photodiode output is proportional to the power output of the laser diode associated with the photodiode. In one multi-beam embodiment, polarization of the laser diode output is controlled so as to ensure that only outputs from an associated laser diode is sensed by an associated photodiode. In another embodiment, a half wave plate is used to rotate the polarization of one of the laser diodes.

Abstract: An image recording apparatus for setting an edit region by preliminary scanning of an original and recording an edited image by main scanning of the original includes a designation input device; a bit map memory; an edit information processing device; an image processing device; a recording device; and a control device. The image recording apparatus permits the same edited image data that is used for a test record to be used for a final record.

Abstract: A negative-electrification type electrophotographic photoreceptor which has an undercoat layer slightly soluble or insoluble in solvents and retains stable properties, and to provide a contact electrification type electrophotographic apparatus employing the photoreceptor and less apt to suffer dielectric breakdown. The electrophotographic photoreceptor comprises an electrically conductive support having thereon an undercoat layer and a photosensitive layer, in which the undercoat layer comprises an electron-transporting pigment and a reactive organometallic compound. This electrophotographic photoreceptor is suitable for use in an electrophotographic apparatus in which the photoreceptor is charged by applying a voltage to a charging member disposed so as to be in contact with the photoreceptor, in particular, an erase-less electrophotographic apparatus.

Abstract: A process for the preparation of toner comprised ofi) flushing pigment into a sulfonated polyester resin, and which resin has a degree of sulfonation of from between about 0.5 and about 2.5 mol percent based on the repeat unit of the polymer;ii) dispersing the resulting pigmented sulfonated polyester resin in warm water, which water is at a temperature of from about 40.degree. to about 95.degree. C., and which dispersing is accomplished by a high speed shearing polytron device operating at speeds of from about 100 to about 5,000 revolutions per minute thereby enabling the formation of toner sized particles, and which particles are of a volume average diameter of from about 3 to about 10 microns with a narrow GSD;iii) recovering said toner by filtration;iv) drying said toner by vacuum; andv) optionally adding to said dry toner charge additives and flow aids.

Abstract: An apparatus and method for managing a set of printer memory requirements, including a random access memory for storing data in a set of variably sized compartments and a processor for determining a source of a predetermined number of print input jobs. A controller, responsive to the size determinations by the processor, generates a set of optimized memory compartment reallocation recommendations according to the source of the predetermined number of print input jobs.

Abstract: The present invention provides a novel chemical substance suitable for practical organic nonlinear optical element having a high nonlinear optical effect, a process for the preparation thereof, and a nonlinear optical element prepared from such a chemical substance. A novel cyclobutenedione derivative prepared in accordance with the following reaction formula, a process for the preparation thereof, and a nonlinear optical element comprising such a derivative are provided: ##STR1## wherein Z represents an oxygen atom or a sulfur atom; R.sup.1 represents an alkyl group, an alkenyl group or an alkynyl group; R.sup.2 represents a hydrogen atom, an alkyl group, an alkenyl group or an alkynyl group; and C* represents an asymmetric carbon atom, with the proviso that R.sup.1 and R.sup.2 may be connected to each other to form a methylene chain and that the hydrogen atom(s) in R.sup.1 may be substituted by a halogen atom, an alkyloxy group or a cyano group.