Abstract: Disclosed is a toner comprising particles of a polyester resin, an optional colorant, and polypyrrole, wherein said toner particles are prepared by an emulsion aggregation process. Another embodiment of the present invention is directed to a process which comprises (a) generating an electrostatic latent image on an imaging member, and (b) developing the latent image by contacting the imaging member with charged toner particles comprising a polyester resin, an optional colorant, and polypyrrole, wherein said toner particles are prepared by an emulsion aggregation process.

Abstract: An image forming apparatus includes an intermediate transfer member to which a toner image is transferred, a transfer roll for transferring the toner image from the intermediate transfer member onto a recording sheet, a brush roll for removing the residual toner from the intermediate transfer member, and a toner collecting device for collecting the toner attached to the surface of the transfer roll. In the apparatus, an axial length of the intermediate transfer member is longer than that of the brush roll, and the axial length of each of the transfer roll and the toner collecting device is longer than that of the intermediate transfer member.

Abstract: A process comprising applying a toner security mark on a document generated by xerographic means, and which mark possesses white glossy characteristics, and wherein said toner is comprised of a waterborne polymer resin and a colorant, and optionally a second security mark generated by a toner comprised of a waterborne polymer resin and a UV fluorescent component.

Abstract: An image forming apparatus and sheet feeder in which a recording-material transporting system is provided for transporting to an image forming section recording material supplied from a recording-material supplying section and for subsequently guiding the recording material to a recording-material discharging section. A portion of the transporting path is arranged on a rear side of the apparatus body located on an opposite side to the user operation side. At least either one of the recording-material supplying section and the recording-material transporting system is provided with a jam clearing section for allowing recording material jammed in the recording-material transporting system to be both accessed from and cleared on the user operation side without need to open any access panels on the side portions or rear portion of the apparatus body. As a result the apparatus may be located without reserving space for opening a side or rear access portion.

Abstract: A carrier for the development of an electrostatic latent image, comprising a core material and a resin coating the core material therewith, wherein the coating resin comprises a copolymer of at least four kinds of monomers including: (1) a monomer containing a carboxyl group; (2) an acrylic acid alkylester monomer or methacrylic acid alkylester monomer, containing a C1-C3 linear alkyl group; (3) an acrylic acid alkylester monomer or methacrylic acid alkylester monomer, containing a C4-C10 linear alkyl group or C3-C10 branched alkyl group; and (4) a monomer containing fluorine. Also disclosed is a two-component developer for the development of an electrostatic latent image, comprising a toner and the carrier.

Abstract: An ink stick for use in a solid ink feed system of a phase change ink jet printer includes at least first and second three dimensional ink stick body portions. Each ink stick body portion includes a perimeter section that is substantially the same as a corresponding section of a keyed insertion opening in the solid ink feed system. Each ink stick body portion also includes a joint perimeter section that is the complement of the joint perimeter section of the other ink stick body portion, so that the first and second ink stick body portions fit together.

Abstract: In one aspect of the present application, provided is a charge gain imaging system and a method of operating the charge gain imaging system. The method includes collecting a pixel charge. The collected pixel charge being stored by a pixel capacitance (Cp). Thereafter the pixel having the stored pixel charge is selected via a pixel select switch, and the pixel voltage is transferred and stored by data line capacitance (Cd) of a data line of the imager. An amplifier select switch is activated connecting the data line to a charge amplifier, and a charge gain defined by a relationship Cd/Cp, is sensed by a charge amplifier.

Abstract: An electrostatographic article including: a substrate; a charge generator layer overcoated on the substrate and which layer is sensitive to blue light; and a charge transport layer overcoated on the charge generator layer and which charge transport layer is transparent to blue light.

Abstract: A color image processing apparatus includes a first unit that predicts a bleeding occurrence level from input image data, a second unit that replaces pixels in a given area including boundaries between black ink and any of color inks with another pixels in accordance with the bleeding occurrence level, and a third unit that controls switching of multiple printing modes for each main scan in accordance with the bleeding occurrence level.

Abstract: A method and a system for separating an image signal into a set of image planes. The system comprises a min-max module, a dynamic threshold module and a separation module. The min-max module receives the image signal, searches for a minimum and maximum within at least one window centered on a current pixel in the image signal. The dynamic threshold module computes, for the window, based on the respective minimum and maximum received from the min-max module and the current pixel, a respective indicator representing the distance and direction of the current pixel relative to a respective threshold plane, and outputs a control signal based on the indicator. The separation module separates the image signal into the set of image planes in accordance with the control signal by including a representation of the current pixel in at least one of the image planes.

Abstract: The present invention relates to protecting printed items intended for public exchange having important informational indicia provided therein. The print items are protected from tampering by providing an informational indicia image as a glossmark. By selectively applying halftones with anisotropic structure characteristics which are significantly different in orientation while remaining identical in density to render information indicia, a glossmark image is produced of the information indicia. Such an information indicia glossmark image when provided in print item image helps protect that print item image from tampering.

Abstract: This invention proposes to make memory using organic materials. The basic structure of the memory cell is a field effect organic transistor using a ferroelectric thin film polymer as gate dielectric. By controlling the gate voltage to polarize the thin film ferroelectric polymer polarized in either an “up” or “down” state, the source-drain current can be controlled between two different values under the same source-drain voltage. The source-drain current thus can be used to represent either a “0” or “1” state. The organic thin film transistor can be made from poly(phenylenes), thiophene oligomers, pentacene, polythiophene, perfluoro copper phthalocyanine or other organic thin films. The ferroelectric thin film can be poly(vinylidene fluoride) (PVDF), poly(vinyldiene-trifluoroethylene) (P(VDF-TrFE)) copolymers, odd-numbered nylons, cyanopolymers, polyureas, or other ferroelectric thin films.

Abstract: An image forming apparatus includes a first processing unit and a second processing unit. The first processing unit receives multi-valued first compressed image data in accordance with a first compression format that is a variable length compression format. The first compressed image data are externally transferred to the first processing unit. The first processing unit then converts the first compressed image data into second compressed image data in accordance with a second compression format. The second processing unit performs expansion and binarization processes on the second compressed image data, and outputs the second compressed image data to a printer engine.

Abstract: A method and a system for separating an image signal into a set of image planes in accordance with a control signal. The system comprises a selector module, an edge processing module and a foreground/background separation module. The selector module receives the control signal and produces a selector signal. The edge processing module receives the selector signal and produces a decision signal. The foreground/background separation module receives the image signal and the decision signal, and outputs a foreground signal and a background signal, a representation of the current pixel of the image signal being included in at least one of the foreground signal and the background signal in accordance with the decision signal.

Abstract: The present invention relates to the segmentation of an image into a main area and a image segment for variable glossmark data. By selectively applying halftones with anisotropic structure characteristics which are significantly different in orientation while remaining identical in density to the image segment, a variable glossmark may be superimposed within an image with reduced processing and storage requirements.

Abstract: A dye thin film containing a dye compound represented by the general formula (I), an optical switch, an optical distributor, an optical modulator and an optical switch array having the dye thin film, as well as a method for producing a dye thin film are provided.

Abstract: A method and a system for de-screening an image signal. The system comprises a filter bank, a control module and a blend module. The filter bank filters the image signal and produces a set of filter output signals. The control module generates at least one control signal based on the image signal and some of the filter output signals. The blend module dynamically blends the filter output signals in accordance with the control signal to produce a de-screened output signal.

Abstract: A cam mechanism for a printer that includes a cam including an active cam surface having a continually increasing radius over an active cam angle, a biased cam follower in contact with the active cam surface, and a drive mechanism for rotating the cam such that only the active cam surface contacts the cam follower.

Abstract: An image forming device includes a backing and is arranged for a media to be positioned against the backing. The backing includes an embedded backing pattern. The media is skewed with respect to the scanning, thus defining a media skew. The media and the backing are scanned to form a pixel pattern. For each pixel, an included pattern recognition algorithm determines when the pixel represents the backing. When the pixel represents the backing, it is replaced with a replacement backing symbol, otherwise it is replaced with a replacement media symbol. The pixel determining and symbol replacing process is continued for remaining pattern pixels to form a replacement symbol pattern comprised of the replacement backing symbols and the replacement media symbols. The media is then processed based on the replacement symbol pattern, the processing including detecting the media skew, registering the media, or both.