Abstract: An image display device is structured with an image display medium, a voltage applying unit and a control unit. The image display medium has black particles and white particles enclosed in a space between a transparent front substrate and a rear substrate. The front substrate is structured with a lamination having a substrate, an electrode and a surface coat layer. The rear substrate is structured with a lamination having a substrate, an electrode and a surface coat layer. The electrode on the front substrate is connected to the voltage applying unit while the voltage applying unit is connected to the control unit. The control unit controls the voltage applying unit to apply to the electrodes of the substrates an alternating voltage at a frequency of from 20 Hz to 20 kHz.

Abstract: A color spectrophotometer incorporating a low cost commercial imaging chip, which normally forms part of a document imaging bar used for imaging documents in scanners, etc., having multiple photo-sites with three different rows of color filters. Each chip is mounted on the optical axis of an imaging lens system, in the image plane of that lens system, to image the reflected illumination from an illuminated color test target area on the chip. The optical axis of the imaging lens system is oriented at 45° to the illuminated color test patches, and the photodetector chip is physically mounted perpendicular to the plane of the illuminated color test patches. Respective photo-sensor chips and associated 1:1 optics may be mounted on opposing sides of the spectrophotometer physically oriented at 90° to the test target area plane receiving the reflected light from the test target optically oriented at 45° to the illuminated test target.

Abstract: In a network comprising printers and print servers which retain queues of print jobs, a user is able to survey and view selected portions of the network, either by enumerating printers to be queried directly, or by enumerating servers. By providing substantially simultaneous “views” of printers and queues in servers, problems within a large network can be readily isolated.

Abstract: A xerographic printer includes a custom toner module. The custom toner module is arranged to form a developed custom toner image and thereafter to transfer this developed custom toner image onto an existing developed image. In a monochrome printer embodiment, the custom toner module transfers the developed custom toner image onto an existing developed monochrome image. In a multi-color printer embodiment, the custom toner module transfers the developed custom toner image onto an existing developed multi-toner image.

Abstract: A method factors an input finite state transducer (FST) with unknown symbols into a left-sequential FST and a right-sequential FST while avoiding direct factorization of the unknown symbols. The left-sequential FST is formed by replacing each occurrence of the unknown symbol in the input FST with a sequence of the unknown symbol and a diacritic. The right-sequential FST is formed by replacing each occurrence of the diacritic with a symbol representative of an empty string and an output symbol.

Abstract: A method for halftoning a gray scale image to generate a halftoned image uses a stochastic screen is designed to provide visually pleasing, blue noise dot profiles when thresholded at any gray level and wherein substantially all the threshold values corresponding to gray levels between gs1 and gs2 coincide with black positions in a constraining checkerboard pattern and substantially all the threshold values corresponding to gray levels between gs2 and gs3 coincide with white positions in the constraining checkerboard pattern.

Abstract: In a system having a plurality of digital printers on a network, when a newly-installed printer is discovered, new printer's object ID is used to determine the type (make and model) of printer. A template printer, of sufficiently similar type, is also identified on the network. Configuration data is then automatically copied from the template printer to the new printer. A central database of configuration data for various printer types is not required.

Abstract: An apparatus for forming an image is provided, in which a rotational member, such as a photoreceptor drum, is borne by using a rolling bearing assuring electric conduction between an inner ring and an outer ring by filling electroconductive grease. Rotation of a photoreceptor drum is borne by using a electroconductive rolling bearing having a resistance between the inner ring and the outer ring of about 15 k&OHgr; or less in terms of a maximum value and about 8 k&OHgr; or less in terms of an effective value under a dynamic condition, where a radial or thrust load acting between the inner ring and the outer ring is 10 N, and a relative difference in rotational velocity between the inner ring and the outer ring is 150 rpm, and the photoreceptor drum is rotated at about 75 rpm or more.

Abstract: The present invention provides a system and method for encoding digital data in a hardcopy rendering of an invisible image of circularly asymmetric dot patterns. The dot patterns are slash-like markings or glyphs tilted to the right and left with respect to the longitudinal axis of the recording medium. The glyphs are written onto a spatially periodic, two dimensional array of cell blocks to encode information without modulating the average reflectances of the cell blocks. In operation the dot patterns are written onto the recording medium in yellow at approximately a 2% pixel density to produce an image that is invisible to the naked eye, but capable of being reliably decoded by conventional machinery.

Abstract: A method of improving black print quality in a color printer having at least one color ink and black ink includes determining a location on a substrate where a black pixel is to be printed, printing a droplet of color ink at the location, and printing a droplet of black ink with the color droplet. If the color printer includes cyan, magenta and yellow, then a droplet of cyan ink, magenta ink or yellow ink may be printed with the droplet of black ink. For images containing black at a plurality of locations, the cyan, magenta and yellow droplets may be equally distributed among the plurality of locations. Alternatively, the cyan, magenta and yellow droplets may be distributed in accordance with a digital halftone screen.

Abstract: An image processing device is structured such that an appropriate judgement of an image, at which blurring or disappearance or the like will occur, is possible. When pixels, which form a line image at which there is the possibility that blurring or disappearance will occur at the time of printing by using a printing plate, are extracted, a line image warning function gives notice by displaying a warning message on a monitor of a client terminal. Thereafter, image converting and print setting are carried out such that an extracted line image is clarified. In this way, when a proof is prepared, an image, at which there is the possibility that blurring or disappearance will occur on a printed matter obtained by using a printing plate, is clarified, and appropriate proofing is possible.

Abstract: Acoustic filters for use in an ink jet print head are disclosed. The ink jet print head defines a plurality of operating plates held together in a superimposed relationship forming an ink jet print head defining a plurality of ink manifolds, ink inlets, ink drop-forming orifices and a plurality of acoustic filters. The acoustic filters are a plurality of compliant areas connected by an acoustic filter constriction aperture and a plurality of separate compliant areas all connected to ink manifolds for suppressing unwanted frequencies during print modes.

Abstract: An image processing device is structured such that it is possible to simply and appropriately determine presence/absence of an image for which overprinting has been designated, or the image. In a print server, when an overprint warning function is set, detecting and extracting of an image for which overprinting has been designated are carried out. Thereafter, when the image for which overprinting has been designated is detected, warning is given to a client terminal, and image processing and printing processing for a corresponding image are set so as to clarify the corresponding image. In this way, the image for which overprinting has been designated can be correctly determined on a printed matter outputted from a printer.

Abstract: An inverting transfer apparatus for continuous web substrate, such as may utilize a single printing system including a conventional or existing simplex web-fed xerographic print engine.

Abstract: The image display device has an image display medium comprising a display substrate and a rear substrate having intersecting linear electrodes formed thereon, and containing black and white particles between the display substrate and the rear substrate. An image is displayed at high resolution by controlling a voltage applied to the electrodes.

Abstract: A piezoelectric transducer for use in an ink jet print head is disclosed. The ink jet print head defines an ink pressure chamber that further defines a chamber aperture having an overlaying flexible diaphragm. The piezoelectric transducer has a top side, an under side secured to the flexible diaphragm and an outer perimeter sized and positioned to overlap the chamber aperture wherein the overlap improves process capability and reduces voltage sensitivity.

Abstract: A liquid electrophotographic reproduction machine including an image bearing member movable along a process path; latent image means mounted along the process path for forming a latent image electrostatically on the image bearing member; a development unit mounted along the process path and containing liquid developer material including a liquid carrier and dispersed charged toner particles for developing the latent image to form a toner image; a pre-transfer station for increasing adhesiveness of the toner image, the pre-transfer station includes an applicator member which applies a cohesion increasing (Cl) solution on the toner image; and a transfer station for transferring the toner image onto a receiving substrate.

Abstract: A static controlling system is provided for effectively and economically controlling static charge build up on a driven web member moving in contact with support structures. The static controlling system includes (a) at least one resistive contact member for contacting the surface of the driven web member, and (b) a bias source coupled to the resistive contact member for biasing the resistive contact member to apply to the surface of the driven web member a neutralizing bias, having a selected polarity and potential level, thereby effectively neutralizing and controlling static charge build up on the driven web member.

Abstract: A job-based accounting system for image processing includes receiving an image processing job at a multifunction image processing apparatus from a walk-up user or a computer workstation operably connected to the image processing apparatus. The image processing job is classified as one of: (i) a print job submitted from a computer workstation operably connected to the image processing apparatus; (ii) a copy job submitted by a walk-up user of the image processing apparatus; (iii) a scan job submitted by a walk-up user of the image processing apparatus; and (iv) a facsimile job submitted or received by a user of the image processing apparatus. One of a plurality of different accounting modes is selected to be used by the multifunction device when the multifunction device carries out the image processing job based upon the classification of the image processing job.

Abstract: A method and an apparatus for producing a solid actuator employing measurement of the electric characteristic of the actuator and effecting polarization during the wire bonding process. After a wire has been bonded to pads formed on a substrate, the conduction of the wire is tested. Then, whether or not a capacitance between the pads has a preselected value is determined. Subsequently, whether or not a characteristic impedance between the pads has a preselected value is determined. Thereafter, whether or not any crack is present in the surfaces of electrodes electrically connected to the pads is determined. This is followed by the polarization of the substrate. Electrical characteristics are tested after each wire is bonded. There is also provided a storage medium storing a program for controlling the above apparatus.