Abstract: A method and system for automatically modifying an original transcription produced as the output of a recognition operation produces a second, modified transcription, such as, for example, automatically correcting an errorful transcription produced by an OCR operation. The invention uses information in an input text image of character images and in an original transcription associated with the input text image to modify aspects of a formal image source model that models as a grammar the spatial image structure of a set of text images. A recognition operation is then performed on the input text image using the modified formal image source model to produce a second, modified transcription. When the original transcription is errorful, the second transcription is a corrected transcription. Several aspects of the formal image source model may be modified; in particular, character templates to be used in the recognition operation are trained in the font of the glyphs occurring in the input text image.

Abstract: Disclosed is an ink composition which comprises water, a colorant, and a monomeric oxazolidinone compound. In one embodiment, the oxazolidinone compound is of the formula ##STR1## wherein R.sub.1 is a hydrogen atom, an alkyl group, or a substituted alkyl group, and R.sub.2, R.sub.3, R.sub.4, and R.sub.5 each, independently of the others, are hydrogen atoms, alkyl groups, substituted alkyl groups, or alkoxy groups. Also disclosed are ink jet printing processes using the aforementioned ink.

Abstract: Disclosed is an imaging member which comprises a conductive substrate, a photogenerating layer, and a charge transport layer comprising a polymer of the formulae I, II, III, IV, V, VI, VII, VIII, IX, or X as further defined herein.

Abstract: In a paper feeding device capable of separately transporting paper without reversely rotating a retard roller being provided with feed rollers and retard rollers which separately transport, sheet by sheet, paper fed from paper feed trays by pickup rollers, a rotary drive unit for rotating the feed rollers in a paper transporting direction, and a pressing unit for pressing the retard rollers against the feed rollers. In the paper feeding device, a retard roller braking unit which supports the retard rollers so as to rotate together with the rotation of the peripheral surface of the feed rollers when the retard rollers are pressed against the rotating feed rollers, and which applies a braking force to the rotating retard rollers.

Abstract: A copy sheet collection station, in one embodiment as used in an ink jet printer, incorporates an exit guide ramp which prevents the sheets deposited into the output tray from being smeared by successively deposited sheets. The exit guide ramp comprises a sheet support surface balanced on a pivot edge, the position of the ramp on either side of the pivot point effectively forming an articulated ramp. A ramp segment on the print zone exit side of the printer has a greater mass than the remaining segment. As the copy sheet exits the print zone and moves along the surface of the ramp, it extends past the ramp edge in cantilevered fashion. At some point, the weight of the paper overcomes the mass of the print side ramp segment causing the ramp member to rotate clockwise, lowering the sheet to its final position in the output tray. Once the sheet clears the edge of the ramp, the ramp rotates back to its unloaded position.

Abstract: A developing device which can withstand resistance at a time a coagulated toner is scraped off is provided merely by providing a rotating shaft with a strength needed for agitating and conveying toner during normal operation. When the coagulated toner is scraped off, a large load is applied to the rotating shaft through an agitator. The rotating shaft bends, and a crank portion of the rotating shaft moves off of an axis. As a result, the crank portion is supported in a cut portion in a support plate. Therefore, strength of the rotating shaft becomes apparently greater. During normal operation, the crank portion of the rotating shaft moves out of the cut portion so as to be set in a state of non-contact with the cut portion. Therefore, no unnecessary load is applied to the rotating shaft, and the crank portion and the cut portion are not worn.

Abstract: An imaging machine operating components include an input scanner for providing images on copy sheets and a copy sheet path connected to the input scanner. The imaging machine is calibrated by providing an image on a first copy sheet and automatically conveying the first copy sheet to the input scanner by way of the copy path. The image on the first copy sheet is scanned and provides the image on a second copy sheet. The image on the second copy sheet is sensed and compared to a reference image to calibrate the imaging machine. The calibration sequence is automatically initiated via control data stored in a memory.

Abstract: An electrophotographic imaging member including a supporting substrate and at least one photoconductive layer, the photoconductive layer comprising a charge transporting material selected from the group consisting of six categories of organic aromatic polyarylamine materials. These six categories of polyarylamine materials are described in detail. The at least one photoconductive layer may be a single photoconductive layer or comprise a combination of layers such as a charge generating layer and a charge transport layer. This imaging member may be utilized in an electrophotographic imaging process.

Abstract: An electrophotographic imaging member comprising a charge generating layer comprising trigonal selenium particles and a charge transport layer, the charge transport layer includinga protonic acid or Lewis acida charge transporting small molecule,a film forming polymer, andan additive selected from the group consisting of1-alkylpiperidene,triethylamine,a complex of 1-alkylpiperidene and a protonic acid or Lewis acid,a complex of triethylamine and a protonic acid or Lewis acid and mixtures thereof.This imaging member may be fabricated using a solvent for applying the charge transport layer.

Abstract: A method of preparing a developer composition involves the steps of:(1) blending carrier particles with finely divided toner particles, wherein blending is carried out for a period of time sufficient to enable the toner particles to alter the tribocharging ability of the carrier particles and become embedded therein;(2) dividing the blend of toner particles and carrier particles into coarse particles and fine particles; and(3) blending the coarse particles with toner particles.

Abstract: A method for operating a processor-controlled machine produces a single-image compressed view of a multi-image table by replacing the character image information in each cell of the multi-image table with a graphical representation of the information. Each cell in an original multi-image table is respectively paired with a source data value of a source data item stored in memory. In a multi-image table, the entire table image cannot be accommodated at one time in the display area of a display device because of the size of the cell regions required to represent the character image information; a machine user must scroll or navigate through portions of the table in order to view all of the data. In response to an image display request signal, the data represented directly as character image information in each cell of all portions of the multi-image table is replaced by an indirect, graphical representation of that data that compactly represents the source data values thereof.

Abstract: An electrostatic-image developer which comprises: (i) a toner comprising: (a) toner particles containing carbon black in an amount of from 6 to 8% by weight based on the weight of the toner particles and having a volume-average particle diameter of from 3 to 9 .mu.m; and (b) an external additive; and (ii) a resin-coated carrier having a volume resistivity of from 10.sup.7 to 10.sup.11 .OMEGA..multidot.cm in an electric field of 10.sup.3.8 V/cm and an average particle diameter of from 30 to 60 .mu.m. Also disclosed are a process for forming a black image and a process for forming a full-color image each using the electrostatic-image developer.

Abstract: Conductive polymeric particles can be formed by mixing a monomer, carbon black and a block copolymer, wherein the block copolymer contains an A block that is miscible with said monomer and a B block that anchors to the surface of the carbon black, such as polystyrene or a derivative of polystyrene. A polymerization initiator is added to the mixture and bulk polymerization is effected until about 5 to about 30 weight percent of the monomer has been polymerized. This partially polymerized product is then dispersed in water and further polymerized.

Abstract: A compact electrostatographic reproduction machine, including a platen for positioning a document sheet having an original image to be reproduced; and a plurality of separately framed, mutually aligning machine modules variously containing electrostatographic process elements and subassemblies. The plurality of machine modules includes a copy sheet input module (CIM) for holding and supplying copy sheets to a toner image transfer point to receive a toner image thereon; an electronic control and power supply (ECS/PS) module for providing power and logic control to various modules of the reproduction machine; an imager module for creating a latent image of the original image of the document sheet positioned on the platen; a customer replaceable process cartridge (CRU) module containing subassemblies for forming a toner image on a photoreceptive member; and a fuser module for heating and fixing a toner image on a copy sheet onto such sheet.

Abstract: A coupling for mechanically interconnecting a rotating mechanism to a media advancing surface, for advancing media in a printing apparatus is disclosed. The coupling includes a first member having a first member feature and a second member rotatably cooperating with the first member. The second member has a second member feature. The first member feature and the second member feature cooperate to provide limited rotational motion of the first member relative to the second member.

Abstract: Ink for ink jet recording containing water, a coloring material and a water-soluble organic solvent, containing 0.01 to 5 wt % of a polymer containing a carboxylic group or polymer having salt of a carboxylic group, having an acid value of 50 to 700; and 0.001 to 5 wt % of a surface active agent, wherein the foaming surface viscosity of the ink is 0.05 to 1.0 g/s. The polymer is a copolymer of hydrophobic .alpha., .beta.- unsaturated ethylene monomer and a monomer having a plurality of hydrophilic --COOM groups (wherein M is hydrogen, alkali metal, or an onium compound including ammonium ion, organic ammonium ion, phosphonium ion, sulfonium ion, oxonium ion, stibonium ion, stanonium and iodonium), a monomer having acid anhydride thereof or a monomer containing ester thereof. The ink for ink jet recording and the ink jet recording method according to the present invention provide an image having a high optical density, without unevenness and free from feathering and bleeding.

Abstract: Font attributes of characters or letters are estimated by an optical character recognition system using character, run or stroke-based techniques with or without character identification information.

Abstract: A processor is provided with a first set of digital information that includes a first, resolution-independent structured representation of a document. This first representation is one from which various image collections (e.g., sets of page images) can be obtained, each such image in each such collection having a characteristic resolution. From the first set of digital information, the processor produces a second set of digital information that includes a second, resolution-dependent structured representation of the document. The second structured representation is a lossless representation of a particular one of the image collections obtainable from the first structured representation, and it includes a set of tokens and a set of positions. The second set of digital information is produced by extracting the tokens from the first structured representation, and by determining the positions from the first structured representation.

Abstract: An improved temperature compensation method is disclosed in which a temperature sensing thermistor is formed on a substrate whose temperature is to be series of fractional thermistors which are selectively shorted out during a manufacturing process to provide a compensation for manufacturing variabilities of the temperature coefficient of resistance of the thermistor.

Abstract: Access to a switching network of an ATM (Asynchronous Transfer Mode) switch is scheduled with a reservation ring that automatically determines the number of channels populating the switching network during a switch cycle. The reservation ring is a distributed arbiter that resolves conflicts arising among a plurality of input channels for access to a plurality of output channels of the switching network. Each input channel populating the switching network is coupled to an arbitration unit of the reservation ring. The arbitration units on the ring determine when an arbitration cycle is complete for each of the arbitration units populating the ring. This enables the number of channels populating the switching network to increase or decrease without having to reconfigure the reservation ring.