Abstract: A method for sensing toner concentration in a developer housing with an optical system containing developer material including toner and carrier, the method, including: emitting light with the optical system through a viewing window in the developer housing onto developer material in the housing; sensing the light reflected off the developer material with the optical system; calculating a toner concentration measurement based upon the sensed light reflected off the developer material; and compensating the toner concentration measurement to account for optical variation due to the developer material condition.

Abstract: An apparatus for forming an image is provided that can sufficiently prevent occurrence of nibbled images without any damage of the photoreceptor and the intermediate transfer body, whereby good image quality can be stably obtained for a long period of time. In an apparatus for forming an image having an intermediate transfer body, the surface of the photoreceptor has a dynamic hardness of 8×109 N/m2 or more, and the surface of the intermediate transfer body has a dynamic hardness larger than that of the surface of the photoreceptor, and a difference between the dynamic hardness of the surface of the photoreceptor and the dynamic hardness of the surface of the intermediate transfer material is 2×1010 N/m2 or less.

Abstract: A dispersion comprised of a wax and a hydrophilic polyester stabilizer.

Abstract: A scheduler for a machine includes a selector to select a traverser and to select policies from a library based on a model of the machine and the traverser selected by the selector. The traverser includes a search algorithm that is selected by the selector from a search algorithm library so that the traverser is abstracted from dependence on any particular search algorithm. Alternatively, the traverser includes a search algorithm shell and a plurality of search algorithm fragments that are selected by the selector from a search algorithm library based on a strategy design pattern so that the traverser is abstracted from dependence on any particular search algorithm shell and from dependence on any particular search algorithm fragment.

Abstract: A composition is provided for coating a photoreceptor having a charge generating layer and a charge transport layer. The composition includes a hole transport material, a cross-linkable film forming binder having at least one functional group that is reactive with isocyanate, a blocked isocyanate cross-linking agent and a solvent having a boiling point equal to or below the deblocking temperature. The blocked isocyanate cross-linking agent is the reaction product of an isocyanate and a blocking agent, wherein the blocking agent has a boiling point temperature equal to or below a selected deblocking temperature to allow the isocyanate to form cross-links. The invention also provides an electrophotographic imaging member with an overcoat layer comprising a cross-linked film forming binder, an isocyanate compound, a hole transport material, and optionally a surface energy reducing agent. Processes for making the imaging members are also provided.

Abstract: A printing apparatus places multiple images on a sheet 10, at least once on one side, and at least once on an opposite side. After the first printing, the sheet 10 is inverted by an inverter 50 and sent to a duplex path 42. Sensors 20, 40, both in a feed path 22 and the duplex path 42 detect the side edge of the sheet 10 to register the position of the sheet 10 to an image rendering device 14. A user has the option to input preferences at a user interface 26, the preferences including running average and registration options. More specifically, the user has the option to choose a number of sheets 10 used to calculate a running average for registration of both the simplexed and duplexed sheets 10. The user also has the option to select between image to image registration, and image to page registration for duplex printing.

Abstract: A phase change ink composition comprising a phase change ink carrier and a colorant compound of the formula wherein M is either (1) a metal ion having a positive charge of +y wherein y is an integer which is at least 2, said metal ion being capable of forming a compound with at least two chromogen moieties, or (2) a metal-containing moiety capable of forming a compound with at least two chromogen moieties, z is an integer representing the number of chromogen moieties associated with the metal and is at least 2, and R1, R2, R3, R4, R5, R6, R7, a, b, c, d, Y, Q−, A, and CA are as defined herein.

Abstract: Laser light emitted from a laser light source is irradiated onto a transmission-type scale, and is diffracted by a polarization hologram recorded on the transmission-type scale. Only polarization directions of ±1-order diffracted lights, among diffracted lights, are rotated by 90°. The ±1-order diffracted lights interfere with one another such that interference fringes are formed on a light-receiving surface of a photo-detector. Interference light of the ±1-order diffracted lights is transmitted through a polarizing plate. A portion of transmitted light is passed through respective slits of a slit plate and is irradiated onto the photo-detector, and intensity of irradiated light is detected. On the other hand, 0-order diffracted light, ±2-order diffracted lights, and the like, whose polarization directions are not rotated, cannot pass through the polarizing plate, and are blocked before being detected at the photo-detector.

Abstract: Disclosed are compounds of the formulae wherein, provided that at least one of R1, R2, R3, R4, R5, and R6 is a hydrogen atom, and provided that at least one of R1, R2, R3, R4, R5, and R6 is not a hydrogen atom, R1, R2, R3, R4, R5, and R6 each, independently of the others, is (i) a hydrogen atom, (ii) an alkyl group, (iii) an aryl group, (iv) an arylalkyl group, or (v) an alkylaryl group. Also disclosed are phase change ink compositions comprising a colorant and a phase change ink carrier comprising a material of this formula.

Abstract: A method of manufacturing an image display medium for encapsulating powdered display elements uniformly between opposed substrates, and an image display medium. Spacer particles are formed in a grid pattern on a first flat substrate pulled out from a first film roll by a first electrostatic application apparatus, and spacers are formed on the first flat substrate by fixing by a first fixer. Then, black particles are applied on the entire surface by a second electrostatic application apparatus, and then white particles are applied on the entire surface by a third electrostatic application apparatus. Subsequently, black particles and white particles are removed from each upper surface of the spacers by a blade, and a second flat substrate pulled out from a second film roll is superimposed thereon, and each upper surface of the spacers is fixed to the second flat substrate by a second fixer.

Abstract: A method of for developing a latent electrostatic image recorded with marking particles, to form a developed image, including: moving the surface of an image receiving member at a predetermined process speed; storing a supply of developer material including comprising toner and carrier beads and toner in a reservoir, the toner including electrically conductive core particles with an electrically insulating coating thereover; transporting marking particles onto an outer surface of a donor member to be delivered to a development zone adjacent the image receiving member; and inductive charging electrically conductive core particles of the toner onto the outer surface of the donor member prior to the development zone to a predefined charge level.

Abstract: What is disclosed is an image processing method for enabling one to print color graphics and other recognizable objects on monochrome printers while retaining color differences. More specifically, the present method is for preserving color discriminability in a grayscale representation. The method involves first sorting colors according to at least one characteristic dimension of a color space such as lightnesses. The color space preferably is a luminance-chrominance color space, although others are envisioned. The sorted colors are adjusted by a metric appropriate to the color space such that the metric imparts a degree of distinction among the colors along the chosen characteristic dimension. The spacing between two adjacent sorted colors can be constant, or weighted by the total color difference between the two colors in the original color space. Color difference can be calculated using for example &Dgr;E*ab, &Dgr;E*LCh, &Dgr;E*94, or DE2000 metrics.

Abstract: The present invention provides a recording sheet which includes regular paper, that contains as a raw material at least a cellulose pulp, having added thereto a nonionic surfactant having an HLB value of higher than 6 and 13 or smaller in an amount of 0.1 g/m2 or more. The invention also provides a method for recording an image using the recording sheet.

Abstract: A color output device is generally driven by at least three independent control signals for control of its response. A desired response in device independent color space is normally obtained by employing a cascade consisting of a characterization transform and calibration transform. The calibration transform transforms input control variables into output control variables that are directly used to drive the device. Input control variables can be transformed into intermediate control variables, which can be then mapped to output control variables utilizing a two-dimensional transformation. The two-dimensional calibration architecture provides improved control functionality and flexibility.

Abstract: The present invention implements a CMYK to CMYK pre-transform in front of at least one printer to be clustered where the transform is designed to ensure that the printers addressed through the pre-transform have substantially identical output color for substantially identical input CMYK values. As one form of implementation a method is disclosed to build CMY to CMY 3D-LUTs and 1D-LUT for K using sensors in the field. Making use of a system LUT—CMY to CMY 3D-LUT and a K to K 1D-LUT—improves consistency and provides a coherent control strategy and a means to provide standardized input CMY and K values in a clustered environment so that single or multiple vendor DFEs see substantially identical CMYK values.

Abstract: The present invention provides an ink set for ink jet recording, an ink jet recording method and an ink jet recording apparatus using the same. The ink set for ink jet recording includes a black ink and color inks including at least cyan, magenta and yellow inks. The black ink includes at least one coagulable agent, and one or more of the color inks is a coagulant-containing color ink containing a coagulant. The contact angle of each of the black ink and the color inks to a recording material is about 50° or less after 1 second of contact. The surface tension of each of the black ink and the color inks is about 40 mN/m or less. The difference between the surface tension of the black ink and that of the coagulant-containing color ink is about 5 mN/m or less.

Abstract: A system and method for sending a message containing a data object, comprising forming a second data object based upon the first data object, the second message being stored in a storage device, forming a second message based upon a first message the second message containing a reference to the storage location of the second data object and sending the second message to a recipient. The determination to store and defer sending message content may be based upon a comparison of the size of the first data object size to a pre-determined threshold. The threshold may be set at a local or enterprise level. Further analysis of the second data object may be performed to determine if the data object is to be distributed to the recipient.

Abstract: A liquid composition containing at least water, a photopolymerization initiator, a water-soluble organic solvent and a polymerizable compound that can cause a polymerization reaction due to the photo polymerizing initiator, wherein the polymerizable compound is contained two or more kinds, the glass transition temperature (Tg) of at least one kind of the polymerizable compound being 50° C. or more, and the glass transition temperature (Tg) of at least one kind thereof being 10° C. or less, an ink set for ink jet, and a recording method and a recording apparatus using the same.

Abstract: What is disclosed is an image path that advantageously uses halftone classification to select appropriate mappings in gray-scale management and color management operations. The tags generated in the scanner help identify different classes of halftones. One is selected from several pixel-value mappings to provide proper compensation. That is, the one-dimensional and multi-dimensional pixel-value mappings within the color management module are selected based on halftone classification tags from the scanner. The tagging is either one bit that indicates “Low Frequency Halftone” and “Not LFHT”, or, more preferably, the tag is multi-bit indicating a frequency bin that contains the frequency of the input halftone. Additionally, the multi-bit tag can indicate particular halftone screen types, such as dot screens, line screens, stochastic screens or error diffusion.

Abstract: An ink set for ink jet using at least 3 or more of liquids, wherein the first liquid contains a colorant, a water soluble solvent and water, the second liquid contains a coagulant which coagulates components constituting the first liquid, a water soluble solvent and water, and the third liquid contains a compound capable of forming a chelate structure with the coagulant in the second liquid, a water soluble solvent and water; an ink jet recording method using the ink set; and an ink jet recording apparatus equipped with a recording head which injects the fore-mentioned ink set for ink jet from the recording head.