Abstract: An image processing apparatus applied to an image processing system wherein a plurality of image input units and a plurality of image output units are used. A spatial frequency characteristic conversion section receives a spatial frequency characteristic in a preparation process of image data from an image input unit or its driver and a spatial frequency characteristic of a selected image output unit from an output device information storage section. An ideal transfer characteristic of the whole system is previously stored in the spatial frequency characteristic conversion section and a transfer function of the spatial frequency characteristic conversion section itself is set so as to realize the ideal transfer characteristic.

Abstract: A method of determining lattice point data of a look-up table for transforming input color coordinates into colorant coordinates of a color image output device, or of reconstructing the same by using a differentiable-continuous function. An input-output characteristic of the device is determined by using a differentiable-continuous function based on discrete transformation pairs, and coefficients of color transformation that uses a look-up table or a continuous function is determined based on the thus-determined differentiable-continuous function.

Abstract: An ink composition comprised of colorant, vehicle, and a salt of polyacrylic acid, a salt of polyamic acid, a salt of alginic acid, or mixtures thereof.

Abstract: In a moving documents imaging system in which documents are separated and sequentially fed from a stack thereof to an imaging platen surface by a separator-feeder system comprising an elastomeric document feeding roller and a frictionally engaging retard member producing elastomeric wear particles optically contaminating the imaging platen surface, an electrostatically attractive shield member is closely spaced from and closely partially surrounding the elastomeric document feeding roller surface to attract and retain these elastomeric wear particles to the interior surface of the shield member so that these particles are not transported by documents to the imaging surface and may be removed by removal of the shield or the entire separator-feeder system. The same shield member may extend to be additionally closely spaced around an elastomeric nudger wheel upstream of the sheet feeding roller. The system may further include a simple triboelectric charging member engaging the document feeding roller surface.

Abstract: An idealized clustered screen is characterized spot clustering which is optimized so that clusters are about the same size and shape as they grow and are approximately equally distanced though an image. Pixels are swapped within the screen to vary its appearance. An optimization process iteratively checks a quality metric based on the optimum conditions, as pixels are swapped until an optimum screen appearance is obtained.

Abstract: A conductive polymer composition selected from the group consisting ofa first composition includinga polymer containing halomethylated aromatic groups, anda charge transporting material selected from the group consisting ofat least one charge transport monomer containing arylamine groups,at least one charge transport polymer containing arylamine units in the main polymer chain,and mixtures thereof, anda second composition includingat least one monomer containing a halomethylated aromatic group,at least one charge transport monomer containing arylamine groups anda polymer binder, anda third composition including:at least one monomer containing a halomethylated aromatic group, andat least one charge transport polymer with arylamine units in the main polymer chain.The aforementioned compositions may be applied as coatings and used in high speed laser printing and related printing processes.

Abstract: A process for manufacturing a semiconductor, including generating a first plasma of a V group element from a V group element source; generating a second plasma of an auxiliary material for activating a metal organic compound containing a III group element separately from and at the same time as the first plasma; adding the vaporized metal organic compound and the plasma of the auxiliary material to the plasma of the V group element; and forming, on a substrate, a film of a semiconductor compound containing the III group element and the V group element. A semiconductor and a semiconductor device having high quality and high functions can be manufactured in a short time at high yield. An amorphous material includes at least hydrogen, a III Group element, preferably gallium, and nitrogen. In the infrared absorption spectrum measured of the amorphous material, the ratio of the absorbance I.sub.N-H, at the absorption peak indicating the bond (N--H) between nitrogen and hydrogen to that, I.sub.

Abstract: Disclosed is an ink composition which comprises water, an anionic dye, and a monoquaternary cationic penetrant of the formula ##STR1## wherein R.sub.1 is either a benzyl group or an alkyl group having at least about 3 carbon atoms, R.sub.2, R.sub.3, and R.sub.4 each, independently of the others, are hydrogen atoms, methyl groups, or ethyl groups, wherein two or more R groups can be joined together to form a ring, X is an anion, and n is an integer representing the charge on the anion, wherein the ink exhibits rapid penetration when applied to plain paper. Also disclosed is a set of inks for generating multicolored images which comprises (a) a first ink as described above; and (b) a second ink comprising water and a pigment; wherein intercolor bleed between the first ink and the second ink is reduced. Further disclosed are ink jet printing processes with the ink and ink set described above.

Abstract: Command sequences that form a meaningful unit in terms of syntax are integrated into drawing and environment contents corresponding to the type of command. Clusters are formed from the drawing contents and the environment contents required to process those drawing contents, and the clusters are assigned to processors, respectively. The assignment of the clusters to the processors is carried out on the basis of drawing loads and the efficient distribution of resource information. The processing results of the processors are recovered in the order in which the command sequences are produced, whereby the completeness of an image is assured.

Abstract: The present invention relates to electronic devices formed in crystallites of III-V nitride materials. Specifically, the present invention simplifies the processing technology required for the fabrication of high-performance electronic devices in III-V nitride materials.

Abstract: A method and apparatus is provided which compensates for environmental factors which cause misdirection of ink drops ejected from an ink jet printhead. Ink drops are electrostatically accelerated in a direction perpendicular to a print substrate, decreasing the ink drop flight time from the printhead to print substrate. The decrease in flight time decreases the misdirecting effect of the environmental factors on the ink drops since the environmental factors act on the ink drops for a shorter amount of time. Accelerating the ink drops also increases the spot size created when the drop impacts the print substrate, decreasing the amount of ink needed to create an image on the print substrate. The decrease in ink use results in less cockle and curl in the print substrate. The device also provides electrostatic deflection of the ink drops in directions parallel to the print substrate, increasing the resolution of the printhead.

Abstract: The present invention provides a technique for mapping the intersections of line segments to machine representable points in a tiled plane. The technique provides for two mapping rules with respect to intersections that result in dividing an original line segment into a number of line segment fragments, each of which is an output machine representable line segment. The mapping rules are designed to minimize the fragmentation of an output set of machine representable line segments while still maintaining their topological consistency and geometric accuracy (i.e., closeness) with respect to the corresponding set of original input line segments. The technique provides a way for operations that manipulate line segments to be implemented in a simple manner assuming a finite precision model of computer arithmetic.

Abstract: A system for removing residual contaminants from an image conditioning apparatus that removes excess liquid from a developed image made up of toner particles immersed in a liquid carrier medium on an image bearing member. The system includes a vacuum blotting device that contacts the liquid developed image and absorbs a portion of the liquid carrier and residual contaminants remain thereon. A contact member adapted to be shifted from a non-operative position spaced from the vacuum blotting device, to an operative position in contact with the vacuum blotting device operates to transfer the contaminants therefrom. A scraper removes the transferred contaminants from the contact member. The contact member is pivotally mounted about the pivot point to effect shifting of the contact member between the non-operative and the operative position.

Abstract: A developer unit for developing a latent image recorded on an image receiving member with marking particles, to form a developed image, including an image receiving member moving at a predetermined process speed. A donor member is spaced from the image receiving member and adapted to transport marking particles to a development zone adjacent the image receiving member. An electrode is positioned in the development zone between the image receiving member and the donor member. A voltage supply to electrically bias the electrode during a developing operation with an alternating current, to detach marking particles from the donor member, forming a cloud of marking particles in the development zone, and developing the latent image with marking particles from the cloud. A modulator, responsive to the predetermined process speed, controls a modulation rate of the voltage supply to minimize harmonic resonant vibrations of the electrode.

Abstract: A rapid warm-up fuser belt (and fusers and marking machines that use such a fuser belt) comprised of a conductive substrate having a resistive heating layer on one side and a release layer on the other side. The fuser belt further enables an electrical contact to the conductive substrate. Electrical current passing through the conductive substrate and through the resistive heating layer, causes the resistive heating layer to heat. The fuser belt can either provide for a direct electrical connection to the resistive heating layer, or it can include a semiconductive layer on the resistive heating layer that improves the electrical connection to the resistive heating layer.

Abstract: The memory capacity required for temporarily holding image data with respect to a printer is reduced, and loads involved in supplying image data, such as decoding and conversion processes, are dispersed and reduced. The apparatus divides image data in parallel with a main scanning direction by an image divider, stores the divided data in image data memory, and supplies the divided image data to image data temporary memory by an image data supply to perform a decoding process. In order to provide a matching with a process speed, the image data temporary memory temporarily retains the divided image data, and a printer prints an image on a sheet of paper on the basis of the divided image data stored in the image data temporary memory.

Abstract: The present invention provides a highly compact vertical cavity surface emitting laser structure formed by a lateral oxidation process. Specifically, the present invention allows for the use of well-controlled oxidized regions to bound and to define the aperture of a laser structure in a current controlling oxidation layer, wherein the aperture comprises a conductive region in the oxidation layer. These oxidized regions are formed by the use of a pre-defined bounding pattern of cavities etched in the laser structure, which allow the embedded oxidation layer to be oxidized, and which results in a highly reproducible and manufacturable process.

Abstract: An ink jet recording ink comprising water, a coloring material such as carbon black, (a) a dispersant containing at least one of a sulfonic acid group, sulfuric ester, and salt thereof, such as a polystyrenesulfonate polymer, and (b) a dispersant above-mentioned dispersants is preferably from 0.1 to 20 parts by weight based on 10 parts by weight of the coloring material. Further, the pH, surface tension, and viscosity of the ink are preferably from 7.0 to 10.0, from 30 to 65 mN/m, and from 1.0 to 10.0 mPa.multidot.s, respectively. Dispersion stability for a long period of time is improved, kogation in the thermal ink jet method is prevented, and excellent fixation on paper is obtained containing a carboxyl group or salt thereof, such as a styrene-maleate polymer, wherein the ratio by weight of (a) to (b) is from 1:5 to 1:100.

Abstract: There is provided a user interface, with a screen display, for use with a network document device server having a first queue communicating with a first document processing device and a second queue communicating with a second document processing device by way of a job distribution controller. The user interface includes a first activatable image area, displayable on the screen display, for indicating the number of jobs currently residing in the first queue, and a second activatable image area, displayable on the screen display, for indicating the number of jobs currently residing in the second queue. In one example of operation, the job distribution controller, in response to manipulation of both of the first and second activatable image areas, transfers the first job set from the first queue to the second queue while the second queue is disposed in the closed state.

Abstract: A method for recognizing job separator pages that tolerates more changes in imaging conditions involving pixel resolution, noise, pose changes (rotation, translation and shear) and a system which can be trained on-site to learn any new separator page. The invention is suitable for use in any scanning assembly systems such as flatbed scanners, feed through document handlers, single page feed scanners, as well wraparound document handlers, and is insensitive to leading and trailing edge-base skew detection problems. A job sheet is visually recognized. Detection of alignment markers is invariant to skew of the most general form and includes all rotations and stretches that occur on a page due to page folding.