Abstract: A method for correcting for edge defects caused by print characteristics of a print engine includes printing a set of actual color patches corresponding to a desired set of colors; defining an edge region and a uniform area region in each of the patches; for each color patch in the set of actual color patches: determining a difference between color in the edge region of the patch and color in the uniform area region of the patch; and generating an edge response to adjust color output of the print engine in the edge region to substantially match color output in the uniform area region. The method can perform edge correction for any edge region of an image. In one embodiment of the invention, the edge region may be determined by a trap engine associated with the print engine and the method can provide correction for trap pixels.

Abstract: A method permitting an end user to recalibrate a color reproduction device. The color reproduction device includes a device for converting the native color values of the scanner into a device independent color space, a test target, and the desired values of each patch of the test target. The method includes printing the test target and scanning it with a scanner that forms a part of the color reproduction device. The device compares the desired values with the values obtained from scanning the printed test target to obtain a set of adjustment values to compensate for drift in the output of the color reproduction device. The compensation emphasizes restoration of the overall gray balance of the color reproduction device and can be implemented by modifying the tone reproduction curves or the halftone process used in the color reproduction device.

Abstract: An apparatus and method for non-interactive, dry powder development of electrostatic images includes an image bearing member bearing an electrostatic image; two component developer comprising toner and permanently magnetized thickly coated carrier beads, the coated carrier beads having magnetizable core radius r, average radius a, and magnetization Mb, with the ratio r/a being given as K; a developer transporting member having a thickness t for transporting a developer layer of the two component developer, wherein the layer is spaced close to and out of contact with the image bearing member, a multipole magnet member disposed in close proximity to the transporting member and moving relative to it so as to sweep poles across its surface, the magnet member having a periodic magnetization of spatial frequency k and a peak magnetization M0 wherein Mb, t, k, and M0, are chosen such that Mb is sufficiently large to prevent the escape of developer, a quantity C in the equation 1 C = 2.

Abstract: A liquid crystal composition including:

Abstract: Method and apparatus for transferring a developed image from an image bearing member to a receiver substrate in a Contact Electrostatic Printing (CEP) system may be provided according to the present invention. The developed image is formed of a development material having a mixture of carrier fluid and pigmented polymeric particles, the composition of such mixture being selected for its characteristic behavior at an elevated temperature for transitioning to a substantially single phase. The method includes the steps of developing an image onto an image bearer using the aforementioned development material; concentrating the developed image; heating the developed image to a temperature at which the polymeric particles and the carrier fluid achieve a substantially single phase condition, so as to form a transferable image; and transferring the transferable image to a receiver substrate such as a paper sheet.

Abstract: Method and apparatus for finishing a receiver sheet or similar substrate by providing a protective coating on the receiver sheet for the benefit of, for example, protecting an image resident thereon. Such coating is created by applying and fusing a mixture containing a transparent, abrasion-resistant toner resin, and optionally components such as a light-fast material, to the receiver sheet.

Abstract: The present invention provides a recycle developer bearing body which is an effective recycle of a used developer bearing body, which helps effective utilization of resources, and which has no fear of image quality degradation such as developer concentration unevenness. In the recycle developer bearing body, even when scars or other defects are developed on a developer bearing surface of the developer bearing body from previous use, a surface roughness Ra of the developer bearing surface having the scars or other defects of the developer bearing body is 0.8 &mgr;m or more.

Abstract: Words of an input string are morphologically analyzed to identify their alternative base forms and parts of speech. The analyzed words of the input string are used to compile the input string into a first finite-state network. The first finite-state network is matched with a second finite-state network of multiword expressions to identify all subpaths of the first finite-state network that match one or more complete paths in the second finite-state network. Each matching subpath of the first finite-state network and path of the second finite-state network identify a multiword expression in the input string. The morphological analysis is performed without disambiguating words and without segmenting the input string into sentences in the input string to compile the first finite-state network with at least one path that identifies alternative base forms or parts of speech of a word in the input string.

Abstract: A phase change waste ink control apparatus and method are provided and are suitable for use in a phase change ink image producing machine including a printhead system. The apparatus for the method includes (a) devices for producing phase change waste ink such as from a printhead system; (b) a waste ink gutter assembly, including a heating device, for collecting, accumulating and coalescing the phase change waste ink. The apparatus also includes (c) a controller for periodically turning the heating device on to heat and melt coalesced phase change waste ink within the waste ink gutter assembly; and (d) a waste ink collection container for collecting melted phase change waste ink from the waste ink gutter assembly.

Abstract: In a high-speed phase change ink image producing machine having a printhead system and a controller, apparatus and method for melting solid phase change ink into melted molten liquid ink, and for controlling the melted molten liquid ink to achieve a high throughput rate of image production are provided.

Abstract: A parallel, non-iterative, memory efficient method of determining image skew. A document skew angle is determined from a fast scan second order moment data set and a slow scan second order moment data set. A slow scan second order moment data set can be generated by receiving a current scanline of image data, updating columns sums for a set of rotation angles using scanlines within a buffer comprising a band having a predetermined number B of scanlines, and updating the buffer with the current scanline.

Abstract: A relatively thin feature information board placed in an essentially upright position proximate to the rear top surface of a multifunctional printer for conveying information concerning the feature capabilities of the printer. The feature information board is generally taller than other features of the marking engine module of the multifunctional printer. The feature information board may contain an active interface region that conveys information concerning the availability of the multifunctional services and status information such as, fault conditions, completion of jobs, and that jobs are in progress.

Abstract: An improved substrate guide member and an improved method of manufacturing the same wherein slits are cut at the base of raised relief ribs prior to drawing such ribs. The result is a flatter and less expensive substrate guide member without the need for supplemental straightening processes.

Abstract: A portable, compact electronic device is disclosed which is adapted for communication with a personal digital assistant. The electronic device includes a housing having an opening adapted for receiving a medium adapted for printing or scanning and at least one coiled structure formed from a coilable material. At least one guide positions the coilable material as it is extended from the coiled structure. The printing or scanning medium is moved through an opening in the housing by rotating elements. An activation means is utilized to perform printing or scanning of the medium, under the controlled extension and retraction of the coilable material from the coiled structure.

Abstract: A surface emitting semiconductor laser includes a substrate, a laminate of semiconductor layers on the substrate, a mesa formed on the laminate and equipped with a laser emission window, and an insulation film that covers at least side and peripheral portions of the mesa, the peripheral portion of the mesa being provided by the laminate. Ends of the insulation film are located further in than cutoff ends of the substrate.

Abstract: A disk stacker system for delivering selectively inverted substrate assemblies into a receiving tray. By alternating inverted with non-inverted substrate assemblies or otherwise grouping inverted and non-inverted substrate assemblies, handling of folded printed material is made more efficient and packing of the folded printed material is made more dense and efficient. The disk stacker system operates by delivering selected substrate assemblies directly to the output tray and bypassing the disk stacker inverting apparatus and by delivering other substrate assemblies to the disk stacker apparatus for inversion prior to delivery to the output tray.

Abstract: A charge transport layer for an imaging member comprising a dual charge transport layer and wherein the charge transport layers comprise a photogenerating layer; (1) a first charge transport layer comprised of a charge transport component and a resin binder; and thereover and in contact with the first layer; (2) a second top charge transport layer comprised of a charge transport component, a resin binder and a hindered phenol dopant. The charge transport layer exhibits, excellent electrical performance, outstanding print quality and reduces the diffusion of the anti-oxidant into the charge generator layer.

Abstract: A polyimide film substrate pre-heater assembly is provided for pre-heating substrates in an image producing machine and includes (a) plural rollers including a drive roller; (b) a substrate path defining and heating assembly for defining a portion of substrate path; and (c) a belt assembly including a polyimide film belt forming a loop. The loop forms a substrate transport nip against the substrate path defining and heating assembly. The polyimide film belt includes a polyimide film support layer, a puzzle cut seam having inter-fitting teeth and receptacle members, and a fluoroelastomeric overcoat layer for filling and strengthening the puzzle cut seam, thereby preventing the inter-fitting teeth and receptacle members thereof from popping up when the loop is driven over relatively small diameter rollers.

Abstract: A method and a system for separating an image signal into a set of image planes are disclosed. The system comprises a way to perform resolution conversion from low resolution to high resolution binary images either for synthetic or scanned imagery by using template matching with pattern replacement. More specifically, the invention applies resolution conversion to the selector plane of mixed raster content images. For selector planes in which edges are encoded (vs. region classification), template matching/pattern replacement works well, and does not affect halftoned regions, as they are not encoded in this image.

Abstract: A method to detect edges based on chrominance information alone or in combination with gray level values includes comparing chrominance values to a registration parameter based on chromacity measurements of a backing. To calibrate a system, a small scan obtains sample image data for the backing in the document feeder. Using the sampled image data, average chrominance values for the backing are determined. Based on the averages, a channel having a low chrominance contribution is selected as the registration channel. A registration parameter is calculated for automatic registration of documents based on the average chrominance and chrominance deviation for the registration channel.