Ricoh Company, Ltd.

Shinichi Hatanaka

Masanori Hirano

Takashi Kimura

Masakazu Yoshida

Toshihito Kamei

Yoshihisa Ohta

Norimasa Sohgawa

Manabu Arita

Aya Yamasawa

Takayuki Ito

Makoto Tanaka

Yasunobu Takagi

Yoshiaki Hoshino

Taku Satoh

Naoki Nakano

Yusuke Nonoyama

Yoshiyuki Ishiyama

A liquid discharge apparatus includes a liquid discharge device, circuitry, and a curing device. The liquid discharge device is configured to discharge a liquid having a curing degree variable by a stimulation amount while relatively moving to a recording medium. The circuitry is configured to acquire surface roughness information indicating glossiness of a formed object formed on the recording medium and set a stimulation amount for the liquid based on the surface roughness information. The curing device is configured to stimulate the liquid discharged by the liquid discharge device based on the stimulation amount set by the circuitry to cure the liquid. The circuitry is configured to set, based on the surface roughness information, the stimulation amount for each region stimulated by the curing device in a same plane of the formed object.

Liquid discharge apparatus and liquid discharge method

A liquid discharge apparatus includes a liquid discharge head, a stimulation imparting unit, and a control unit. The liquid discharge head discharges stimulation hardening resin. The stimulation imparting unit imparts hardening stimulation to the discharged stimulation hardening resin. The control unit: controls the liquid discharge head based on lamination print data; forms a plurality of print layers each having a contour part; and changes a distance from the contour part in each of the print layers, based on data representing a correction amount with respect to a distance from the contour part in each of the print layers and a number of the print layers.

Liquid discharge apparatus and method for manufacturing lamination print

A three-dimensional data generating apparatus includes an input curve receiving unit configured to receive input of a curve indicating a relationship between a height and a distance from an outline of a target area to each position within the target area, a three-dimensional shape of the target area being generated from a two-dimensional image; and a three-dimensional data generating unit configured to calculate the height at each of the positions within the target area in accordance with the distance, the distance being calculated from a point on the outline to a corresponding position of the positions, and to generate data representing the three-dimensional shape of the target area based on the calculated height.

Three-dimensional data generating apparatus, recording medium, and method using a curve indicating a relationship between height and distance

A liquid discharging device includes: a recording head that has nozzles discharging liquid, and forms an image on a target surface with the liquid while performing scanning of the target surface for multiple times; a moving unit that moves the recording head in main-scanning direction while making the head discharge liquid, and moves the head in sub-scanning direction after the head has discharged liquid; a drive waveform applying unit that applies a drive waveform to the respective nozzles; a temperature detecting unit that detects temperature about the head; a correcting unit that corrects drive waveform based on detected temperature; and a control unit that, when temperature about the head changes from first temperature to second temperature, performs control in such a way that, during the multiple scans, use of second-type drive waveform corresponding to the second temperature gradually increases against use of first-type drive waveform corresponding to the first temperature.

Liquid discharging device and drive waveform control method

An image processing device includes a data receiver to receive three-dimensional object data of an object and a circuitry to create three-dimensional data from the three-dimensional object data when coloring at least part of a surface of the object, to conduct the coloring to the outer layer of the surface and multiple inner layers of the object.

Image processing device, image processing system, non-transitory recording medium, and method of manufacturing object

An inkjet recording apparatus for curing ink ejected onto a base material and forming recorded matter on the base material is provided. The inkjet recording apparatus includes an ejection unit configured to eject the ink onto a first area of the base material and a second area surrounded by the first area, a curing unit configured to cure the ink ejected onto the base material, and a control unit configured to control the curing unit in such a way that a time from ink ejection onto the first area to ink curing is longer than a time from ink ejection onto the second area to ink curing.

Inkjet recording apparatus, inkjet recording method and medium

An image processing apparatus includes an acquiring unit, an identifying unit, and a correcting unit. The acquiring unit acquires input data including shape data on a concave-convex area having a convex part and a concave part and image data of an image formed on the concave-convex area. The identifying unit identifies an uneven area which is within a bottom surface of the concave part and is continuous with a wall surface connecting the bottom surface and a convex surface of the convex part. The correcting unit corrects the image data so that the brightness of a first image area in the uneven area stacked with multiple dots and the brightness of a second image area continuous with the first image area become about the same.

Image processing apparatus, non-transitory computer-readable medium, and image processing method

A method for forming a color image on a recording medium includes detecting an ejection failure of a group of color ink recording elements for ejecting color ink drops, storing recording data originally expected to be processed by at least one color recording element exhibiting the ejection failure of the color recording elements of the group in a case where the ejection failure is detected in the detecting step, and compensating the ejection failure by recording an achromatic dot at a pixel position to which at least one color dot is originally expected to be recorded on the recording medium based on recording data stored in a data storage unit.

Image forming method, image forming apparatus, and recording medium

An image processing apparatus that outputs print data to a recording apparatus including a recording unit that causes each of a plurality of nozzles to eject droplets to record dots on a recording medium, the image processing apparatus comprises: an acquiring module that acquires image data for an image to be formed by the recording unit; a determining module that determines whether or not the image data is laminated image data formed of a plurality of layers; and a generating module that generates, when the image data is the laminated image data, the print data that assigns nozzles for recording dots corresponding to respective pixels of the laminated image data such that a specific nozzle for recording dots that correspond to pixels at an identical pixel position in the laminated image data varies from one layer to another.

Image processing apparatus, computer-readable recording medium, and image processing method to form an image of improved quality

An image processing apparatus includes an acquiring unit, a first calculating unit, a setting unit, a second calculating unit, a first generating unit, and a second generating unit. The acquiring unit acquires image data of an image to be formed by a recording unit using an inkjet system. The first calculating unit calculates a thickness of ejected ink for each pixel based on the image data. The setting unit sets a target thickness of the image. The second calculating unit calculates a difference between the target thickness and the thickness of ink for each pixel. The first generating unit generates complementary data, in which an ejection amount of an additional droplet to realize a thickness corresponding to the difference is defined for each pixel. The second generating unit generates print data containing the image data and the complementary data.

Image processing apparatus, image processing method, and image processing system

A recording apparatus includes: a recording unit; an adjustment-chart output unit that outputs an adjustment chart for adjusting deviation of a print position between a first dot and a second dot that are formed for images on a recording medium at different timings with a print head; and an ejection-position adjusting unit that records a plurality of combinations, each containing a reference pattern for reference of an image position and adjustment patterns that are deviated from the reference pattern in a stepwise manner such that the deviation amounts are shifted by M-times of a deviation amount corresponding to the recording resolution, receives selection of an adjustment pattern closest to the reference pattern from the outside, obtains an adjustment value based on the adjustment pattern of the selected combination, sets the adjustment value as a new adjustment value, and adjusts an ejection position of the print head.

Recording apparatus, method for adjusting deviation of print position for recording apparatus, and computer program product

An image processing apparatus for converting input image data into output image data for an image forming apparatus configured to output an image with the use of coloring material, which includes a unit configured to perform a coloring-material usage amount reduction process of converting the input image data into the output image data such that an amount of the coloring material used for color-printing the input image data becomes a target coloring-material usage amount defined based on a monochrome-printing coloring-material usage amount required for monochrome-printing the input image data.

Image processing apparatus, image processing method, program, recording medium, printing system, image forming apparatus

A method of forming an image by an image forming apparatus provided with a print head having plural nozzles, wherein the print head has an overlapping area whose print area overlaps a print area of a physically adjacent print head, or has an overlapping area whose print area overlaps an adjacent scan line on a print sheet surface, includes an image forming step of forming an image by the print head, wherein the image forming step includes a control step of controlling in a variable manner an amount of ink sprayed from a proximity nozzle situated in close proximity of the overlapping area, the proximity nozzle being one of the nozzles situated in a non-overlapping area outside the overlapping area.

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Tokyo, Japan

Shinichi Hatanaka