Abstract: There is provided an image forming apparatus that forms an image with a plurality of coloring materials on a recording medium, and the image forming apparatus includes: a hardware processor that calculates a chromaticity range having a color difference not less than a setting value to respective chromaticities of the plurality of coloring materials for use in formation of the image, as a base color range common between the plurality of coloring materials.

Abstract: There is provided an image forming apparatus that forms an image with a plurality of coloring materials on a recording medium, and the image forming apparatus includes: a hardware processor that calculates a chromaticity range having a color difference not less than a setting value to respective chromaticities of the plurality of coloring materials for use in formation of the image, as a base color range common between the plurality of coloring materials.

Abstract: An inkjet recording apparatus includes: a recorder having a line head, the recorder ejecting ink through each of the ink ejection ports toward a recording medium; a mover that moves the recording medium and the line head relative to each other in a direction intersecting the arrangement direction of the ink ejection ports in the line head, and causes each pair of ink ejection ports of two adjacent head modules facing each other in the overlapping region to pass through a same place on the recording medium; and a recording controller that controls ink ejection operations of the plurality of head modules on the recording medium in accordance with dot data, and causes either of a pair of ink ejection ports of two adjacent head modules to eject ink to implement complementary ink ejection operations by the pair of ink ejection ports of the two head modules.

Abstract: An inkjet recording apparatus includes: a recorder having a line head, the recorder ejecting ink through each of the ink ejection ports toward a recording medium; a mover that moves the recording medium and the line head relative to each other in a direction intersecting the arrangement direction of the ink ejection ports in the line head, and causes each pair of ink ejection ports of two adjacent head modules facing each other in the overlapping region to pass through a same place on the recording medium and a recording controller that controls ink ejection operations of the plurality of head modules on the recording medium in accordance with dot data, and causes either of a pair of ink ejection ports of two adjacent head modules to eject ink to implement complementary ink ejection operations by the pair of ink ejection ports of the two head modules.

Abstract: Reproduction can be adjusted according to the degree of achromatopsia and the color distribution of an image, and color reproduction approximate to the vision of normal persons is provided to achromates. Different textures are added to respective regions (similar and hardly indistinguishable regions) which have different colors but conduce to similar result of light-reception by a light receiving device according to the differences of the original colors. The textures include a pattern of angle, hatching, or contrast each different according to the difference of the original color.

Abstract: An handwriting electronic input system in which a feeling representing that of handwriting performed actually using a writing instrument can be attained when handwriting input is performed electrically. The electric handwriting input system to perform handwriting electrically is provided with a handwriting input section used in handwriting input of operator's handwriting information, a handwriting input detection section to detect handwriting input through the handwriting input section, wherein the handwriting input section is provided with a handwriting feeling producing section to generate a vibration represents a handwriting feeling in accordance with operation of the handwriting input section at handwriting input of information.

Abstract: Reproduction can be adjusted according to the degree of achromatopsia and the color distribution of an image, and color reproduction approximate to the vision of normal persons is provided to achromates. Different textures are added to respective regions (similar and hardly indistinguishable regions) which have different colors but conduce to similar result of light-reception by a light receiving device according to the differences of the original colors. The textures include a pattern of angle, hatching, or contrast each different according to the difference of the original color.

Abstract: An handwriting electronic input system in which a feeling representing that of handwriting performed actually using a writing instrument can be attained when handwriting input is performed electrically. The electric handwriting input system to perform handwriting electrically is provided with a handwriting input section used in handwriting input of operator's handwriting information, a handwriting input detection section to detect handwriting input through the handwriting input section, wherein the handwriting input section is provided with a handwriting feeling producing section to generate a vibration represents a handwriting feeling in accordance with operation of the handwriting input section at handwriting input of information.

Abstract: A photographed subject authentication system comprising: a compressed image data writing device for writing the first compressed image data and related information into the photographed object authentication card; a compressed image data reading device for reading a third compressed image data from the photographed subject authentication card; a data specifying device for specifying the original image data corresponding to the first compressed image data and the compression condition read based on the obtained related information; and a second compression device for compressing the specified original image data based on the specified compression condition to obtain second compressed image data, wherein the data verifying device determines that the third compressed image data is equal to the first compressed image data when the result of the comparison is that the third compressed image data is equal to the second compressed image data.

Abstract: An image receiving sheet characterized by comprising an image receiving layer composed of a metal ion containing compound capable of forming chelate with a thermally transferable dye and an acryl resin composed of styrene and acrylonitrile as component unit, and an image forming method employing it are disclosed. Discoloration or smudge are prevented, glossiness is excellent, dye acceptability is high and image storage stability is good.

Abstract: A thermal transfer image recording method is disclosed.

Abstract: In an image forming method in that an image-receiving layer of an image-receiving element is in contact with an ink sheet comprising a thermally transferable dye, and the dye is transferred to the image-receiving layer in accordance with imagewise-heating by a thermal head, the image-receiving layer having dye image formed by dye transfer is subjected to re-heating through a thin film material by thermal head.

Abstract: In an image forming method in that an image-receiving layer of an image-receiving element is in contact with an ink sheet comprising a thermally transferable dye, and the dye is transferred to the image-receiving layer in accordance with imagewise-heating, the image-receiving layer comprises a metal ion-containing compound and the ink sheet has repeatedly a region comprising both the metal ion-containing compound and a chelatable dye and a region comprising the metal ion-containing compound and no thermally transferable dye and the dye-containing region of the ink sheet is subjected to imagewise-heating, and to the image part formed on the image-receiving layer, the metal ion-containing compound is transferred by heating the region comprising the compound containing the metal ion. (2) In the above-mentioned (1), the image-receiving layer comprises substantially no metal ion-containing compound.

Abstract: A silver halide light-sensitive photographic material comprising a support having on at least one side thereof a silver halide emulsion layer comprising a silver halide emulsion, wherein the silver halide emulsion is prepared by chemically-ripening the silver halide emulsion containing silver halide grains and a hydrophilic colloid in amounts of at least 7% by volume and at least 5% or more by weight, respectively, and preferably in the presence of iodide containing silver halide fine grains.

Abstract: A silver halide photographic light-sensitive material comprising a support bearing on both sides thereof a silver halide emulsion layer containing a silver halide emulsion comprising monodispersed and spectrally-sensitized silver halide tabular grains having an average aspect ratio of grain diameter to grain thickness of from not less than 2 to less than 8 and accounting for at least 70% of the total projected area of the grains contained in the silver halide emulsion and a method of preparing the silver halide emulsion are disclosed, wherein the silver halide emulsion is chemically sensitized in the presence of iodide-containing silver halide fine grains, thus chemically-sensitized emulsion having a value of 100 mV or less with respect to a silver electrode potential at 50.degree. C.

Abstract: A silver halide photographic light-sensitive material comprising a support having thereon a silver halide grain emulsion layer is provided, wherein the silver halide emulsion is chemical-sensitized with a selenium compound; and, at a time during the course of chemical sensitization, silver iodide fine grains is further added to the emulsion. The silver halide emulsion comprises tabular grains having an aspect ration of 3 or more.