Creating Plural Tones Patents (Class 347/15)
  • Patent number: 10778868
    Abstract: A computer-implemented method for generating an amplitude modulated multi-cluster halftone dot for use in an amplitude modulated screen includes determining an arrangement of clusters within the dot; determining a cluster function for each cluster, the cluster function defining a pixel sequence indicating a sequence of turning on device pixels within an area of a particular cluster; determining a dot function for the dot, the dot function defining a cluster sequence indicating a sequence of the clusters; and generating a set of data representative of the dot for a particular tonal value, by determining the device pixels within the dot turned on for that particular tonal value according to the cluster functions and the dot function. A computer program, a printing device and a printed product are also provided.
    Type: Grant
    Filed: September 24, 2018
    Date of Patent: September 15, 2020
    Assignee: Heidelberg Polska Sp z o.o
    Inventors: Andrzej Kunstetter, Marek Chmielewski, Tomasz Jasinski
  • Patent number: 10759184
    Abstract: Density of each pixel is specified from a test pattern for measurement of density distribution, a density profile indicating distribution of the specified density for each pixel is acquired, and a pixel region including a “nozzle of interest” having a certain density difference or more from surrounding pixels and pixels on both sides thereof is extracted as a nozzle region of interest from the acquired density profile. Filters B to E, other than a filter A to be applied for density smoothing processing of pixels that do not belong to the nozzle region of interest, are applied for the density smoothing processing of the pixels in the nozzle region of interest, to generate a profile of a density correction value for eliminating a density difference between respective pixels based on the density profile after the smoothing processing.
    Type: Grant
    Filed: March 14, 2018
    Date of Patent: September 1, 2020
    Assignee: RISO KAGAKU CORPORATION
    Inventor: Hironori Inagawa
  • Patent number: 10744786
    Abstract: Provided are an image recording apparatus, a dither mask, and an image recording method capable of reducing occurrence of concentration unevenness without decrease in productivity. In an image recording apparatus that repeats a main scan operation of relatively moving a recording head having a nozzle row with respect to a recording medium in a main scan direction to perform recording and a sub scan operation of relatively moving the recording medium with respect to the recording head in a sub scan direction, a nozzle jetting rate of each nozzle is controlled by a dither mask.
    Type: Grant
    Filed: September 9, 2019
    Date of Patent: August 18, 2020
    Assignee: FUJIFILM Corporation
    Inventor: Kimito Katsuyama
  • Patent number: 10726316
    Abstract: In conventional color shading (CS) processing for correcting color unevenness with high precision, even an image to preserve pure colors can be corrected to use inks of other colors. Color unevenness is more appropriately corrected to provide a favorable image by properly using pure color preservation information and pure color non-preservation information as color correction information for the CS processing.
    Type: Grant
    Filed: October 18, 2019
    Date of Patent: July 28, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventor: Minako Kato
  • Patent number: 10717211
    Abstract: A three-dimensional image forming system according to the present invention includes a conveyance path along which a heat-expandable sheet is conveyed, a heating unit which heats the heat-expandable sheet by irradiating the heat-expandable sheet with light, a detection sensor which detects that the rear end of the heat-expandable sheet comes close to the heating unit by the conveyance of the heat-expandable sheet along the conveyance path, and a control unit which increases the conveying speed of the heat-expandable sheet whose rear end is detected when the detection sensor detects that the rear end of the heat-expandable sheet comes close to the heating unit.
    Type: Grant
    Filed: February 23, 2017
    Date of Patent: July 21, 2020
    Assignee: CASIO COMPUTER CO., LTD.
    Inventor: Minoru Saito
  • Patent number: 10706816
    Abstract: Embodiments for implementing a fault tolerant color palette in a device having potential hardware faults by a processor. A fault tolerant color palette, assistive of user color interpretation for a display, may be generated according to a set of colors in a predetermined color palette and one or more user preferences.
    Type: Grant
    Filed: October 5, 2018
    Date of Patent: July 7, 2020
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Michele Berlingerio, Michele Gazzetti, Marco Luca Sbodio
  • Patent number: 10708468
    Abstract: An image processing method includes dividing a desired image into a normal region formed with partial images and a joint region formed by overlapping the partial images, first converting image data in an RGB color space corresponding to the normal region into normal region CMYK data in a CMYK color space using a normal region LUT, second converting the image data in the RGB color space corresponding to the joint region into joint region CMYK data in the CMYK color space using a joint region LUT derived based on attribute information of the printing medium and environmental information of an environment in which the printing apparatus is to perform printing, and generating printing data based on the normal region CMYK data and the joint region CMYK data.
    Type: Grant
    Filed: January 11, 2018
    Date of Patent: July 7, 2020
    Assignee: Seiko Epson Corporation
    Inventors: Yasutoshi Takeuchi, Naoki Sudo, Tetsuya Matsumura
  • Patent number: 10696062
    Abstract: A method for compensating for defective printing nozzles in an inkjet printing machine by way of a computer. Defective printing nozzles are compensated for by an increased ink drop volume of neighboring printing nozzles and the real positions of the print dots of all printing nozzles are determined and, to compensate for a printing nozzle failure, the required ink drop volumes of the respective neighboring printing nozzles are calculated for every printing nozzle as a function of the real positions of the print dots of the respective neighboring printing nozzles. In addition to increased ink drop volumes of the respective neighboring printing nozzles, reduced ink drop volumes are calculated for the respective next but one printing nozzles and all ink drop volumes are calculated based on the print dots of the respective printing nozzles.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: June 30, 2020
    Assignee: Heidelberger Druckmaschinen AG
    Inventors: Axel Hauck, Martin Mayer, Ilias Trachanas
  • Patent number: 10691988
    Abstract: Example methods of controlling printing of a halftone image are disclosed as well as apparatuses and computer-readable storage mediums relating thereto. In an example, the method includes receiving input data indicating a first colorant deposition order for a colorant combination and a second colorant deposition order for the colorant combination, wherein the second colorant deposition order is different from the first colorant deposition order. Control data is generated based on the input data. The control data includes first pixel data associating a first pixel in the halftone image with the first colorant deposition order, and second pixel data associating a second pixel in the halftone image with the second colorant deposition order. The control data is used to control a printer to print the halftone.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: June 23, 2020
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Peter Morovic, Jan Morovic, Xavier Farina Vargas
  • Patent number: 10686947
    Abstract: An image forming apparatus includes: an image former that forms an image on a sheet on the basis of print image data obtained by performing image processing on raster data subjected to raster image processing; an image reader that reads the image formed on the sheet on the basis of the print image data by the image former to acquire uncorrected read image data; and a hardware processor that compares the raster data with read image data generated from the uncorrected read image data acquired by the image reader to inspect a print state of the image formed on the sheet, wherein the hardware processor, when inspecting the print state of the image formed on the sheet, offsets an amount of adjustment adjusted by the image processing performed on the raster data.
    Type: Grant
    Filed: October 15, 2018
    Date of Patent: June 16, 2020
    Assignee: KONICA MINOLTA, INC.
    Inventor: Hiroaki Aizawa
  • Patent number: 10661562
    Abstract: A drop-on-demand printing method comprising performing the following steps in a printing head: discharging a first primary drop of a first liquid from a first nozzle outlet to move along a first path (pA) with a first speed; discharging a second primary drop of a second liquid from a second nozzle outlet to move along a second path (pB) with a second speed, lower than the first speed, wherein the second path (pB) is inclined with respect to the first path (pB) along an axis inclined at an angle (?) from 3 to 60 degrees and crosses the first path (pA) at a connection point; controlling the flight of the first primary drop and the second primary drop to combine the first primary drop with the second primary drop into a combined drop at the connection point so that a chemical reaction is initiated between the first liquid of the first primary drop and the second liquid of the second primary drop; applying electric charge to the combined drop; wherein the path of flight (pC) of the combined drop is altered no mor
    Type: Grant
    Filed: July 24, 2017
    Date of Patent: May 26, 2020
    Inventor: Piotr Jeuté
  • Patent number: 10654287
    Abstract: The present invention embraces a method and apparatus for an efficient and economical print quality setup for thermal printers. A thermal printhead of a thermal printer constitutes multiple printhead banks. The printhead banks may be controlled by strobe signals. While configuring print quality, each of the strobe signals may operate separately with different power causing the printhead banks to operate in different configurations while printing an identical pattern. As each the banks are operating in different configuration, they each print the identical pattern with a different print quality. One print quality may be selected from the different quality patterns printed by each printhead bank on a single printed label or media. The selected quality pattern corresponds to a quality factor. The method may reduce the time to select a configuration and may reduce the amount of usage of media or labels.
    Type: Grant
    Filed: October 19, 2017
    Date of Patent: May 19, 2020
    Assignee: DATAMAX-O'NEIL CORPORATION
    Inventor: Richard Hatle
  • Patent number: 10654276
    Abstract: An ink-jet printing device according to the present invention includes at least one nozzle configured to discharge an ink droplet onto a recording medium conveyed in a conveyance direction, and a control unit to control flushing operation of the nozzle. Candidate regions are disposed at a plurality of places separated from each other in a conveyance direction of a cut sheet. The control unit controls the nozzle to perform the flushing operation in the candidate regions at a plurality of places in the conveyance direction of the cut sheet. With this configuration, the ink jet printing device can efficiently perform the flushing operation on a recording medium with reduced restriction on imposition.
    Type: Grant
    Filed: July 25, 2018
    Date of Patent: May 19, 2020
    Assignee: SCREEN HOLDINGS CO., LTD.
    Inventors: Tatsuya Enjo, Sachiko Takeuchi, Satoru Kiyohara
  • Patent number: 10650500
    Abstract: An image local contrast enhancement method includes: obtaining a first block where a pixel is located and a second block adjacent to the first block, and a gray scale source of a third block; obtaining a source gray scale of a fourth block opposite to the first block; respectively calculating a linear interpolation value according to the source gray scale and a distance between the pixel and the first block, the second block, the third block, and the fourth block; calculating a nonlinear interpolation value of the linear interpolation value by a nonlinear function; performing weighted calculation on the nonlinear interpolation value to obtain a target gray scale. The disclosure increases the diagonal blocks in the local gray scale adjustment, reflects the diagonal direction of the image, enhances the display effect of the local contrast in the smoothing process, enhances the edge image display effect, and improves the user experience.
    Type: Grant
    Filed: November 23, 2017
    Date of Patent: May 12, 2020
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Ching-hong Lai, Shen-sian Syu
  • Patent number: 10639886
    Abstract: A control device that controls a printing execution unit to execute printing by alternately executing partial printings, which forms the dot using the print head, and print medium conveying, which conveys the print medium using the conveyor, the conveyor including: a first roller; a second roller; and a third roller, wherein a first holding state is a state where the print medium is held by the first roller, is held by the second roller, and is held by the third roller, a second holding state is a state where the print medium is held by the first roller, is held by the second roller, and is not held by the third roller, and a length of the second partial image printed in the first holding state is longer than a length of the second partial image printed in the second holding state.
    Type: Grant
    Filed: March 8, 2019
    Date of Patent: May 5, 2020
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Hirotoshi Maehira
  • Patent number: 10632776
    Abstract: A structure manufacturing method manufactures a structure including an expansion layer M2 by expanding the expansion layer M2 that is included in a print medium M and expands by heating. An electromagnetic wave-heat conversion material is formed on a first surface of the print medium M in density corresponding to a shape of a structure C0 to be manufactured. Here, either the material is formed in lower density than density of the material in a first part of the expansion layer M2 to be expanded to a first height H1 and density of the material in a second part of the expansion layer M2 to be expanded to a second height H2 or the material is not formed, in a boundary region A0 which is the first surface in a boundary part between the first part and the second part. The print medium M is then irradiated with electromagnetic waves.
    Type: Grant
    Filed: December 16, 2016
    Date of Patent: April 28, 2020
    Assignee: CASIO COMPUTER CO., LTD.
    Inventor: Hitomi Fujimoto
  • Patent number: 10611174
    Abstract: A method comprising printing multicolored images on containers includes providing overall-image data, extracting partial-image data from the overall-image data, print-head-specific calibration-data for the print heads, using the partial-image data and the first print-head-specific calibration-data for calculating print-head image-data for each print head, and causing the print heads to print corresponding partial images on containers, each partial image corresponding to one of the colors in the multicolored images.
    Type: Grant
    Filed: May 19, 2017
    Date of Patent: April 7, 2020
    Assignee: KHS GmbH
    Inventors: Sascha Koers, Katrin Preckel, Markus Reiniger, Werner Van De Wynckel
  • Patent number: 10603910
    Abstract: A liquid discharge head includes a recording element configured to generate thermal energy and a discharge orifice disposed at a position facing the recording element. A bubble is generated in liquid by the thermal energy, liquid between the bubble and the discharge orifice is discharged from the discharge orifice by the pressure of the generated bubble, and the bubble communicates with the atmosphere on the outside of the discharge orifice.
    Type: Grant
    Filed: December 17, 2018
    Date of Patent: March 31, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Yoshiyuki Nakagawa, Shintaro Kasai, Akiko Hammura, Shinji Kishikawa, Takayuki Sekine, Shuzo Iwanaga, Takatsugu Moriya, Koichi Ishida, Tatsuya Yamada
  • Patent number: 10596812
    Abstract: According to an embodiment of the present invention, to improve processing performance, a printing apparatus that performs printing by using a printhead formed by a plurality of headchips includes one CPU, a table configured to store processing contents set by the CPU, and a plurality of processing units configured to process, in parallel, printing data to be used in each headchip by commonly using the table and in accordance with the processing contents set in the table. In addition, the apparatus includes a plurality of control units configured to wait for the completion of the processing of each processing unit, synchronize the plurality of processing units for next processing, and cause each of the processing units to execute the next processing in accordance with the processing contents set in the table.
    Type: Grant
    Filed: May 29, 2018
    Date of Patent: March 24, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Satoshi Kitai, Masahiko Umezawa, Kouichi Serizawa, Kazuya Koizumi
  • Patent number: 10592791
    Abstract: Provided are an image processing apparatus, an image processing method, and a storage medium that can contribute to formation of electric circuits having different resistance values without causing increase in cost. The image processing apparatus generates print data for printing an electrically conductive print image on a print medium by ejecting a metal particle-containing ink from ejection device, the image processing apparatus has: a setting unit configured to set a printing condition based on a resistance value of the electrically conductive print image so as to change at least one of an amount of ink droplets of the metal particle-containing ink contacting each other and a time to be taken for ejected metal particle-containing ink droplets to contact each other; and a generation unit configured to generate the print data based on image data for the electrically conductive print image and the printing condition.
    Type: Grant
    Filed: July 2, 2018
    Date of Patent: March 17, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventor: Minako Kato
  • Patent number: 10556444
    Abstract: There is provided an image processing apparatus including a controller configured to: acquire scan data indicating a scan image including first and second specific color areas each indicating a part thereof printed by using a first nozzle and a third specific color area indicating a part thereof printed by using a second nozzle; and generate a plurality of parameters, by using the scan data, each of the plurality of parameters indicating jetting characteristic of a coloring material from one of the first and second nozzles corresponding thereto. The controller evaluates the difference between a color of the first specific color area and a color of the second specific color area, and the controller generates a parameter included in the plurality of parameters and corresponding to the second nozzle, by using a result of the evaluation of the difference and a value of a third pixel within the third specific color area.
    Type: Grant
    Filed: February 15, 2018
    Date of Patent: February 11, 2020
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Masaya Takasu
  • Patent number: 10532516
    Abstract: The shaping method for shaping a 3D object includes shaping execution data generating step of generating shaping execution data indicating the 3D object in a format corresponding to a shaping device; and shaping executing step of shaping the 3D object with the shaping device based on the shaping execution data, the 3D object being shaped using at least a shaping material of plural colors, wherein the shaping execution data generating step is a step of generating the shaping executing data based on 3D object data indicating the 3D object in which at least one part is colored, the shaping execution data being generated by at least carrying out color conversion using a shaping material profile or a profile corresponding to the shaping material of plural colors, and the color conversion being carried out using the plurality of shaping material profiles different from each other.
    Type: Grant
    Filed: September 14, 2017
    Date of Patent: January 14, 2020
    Assignee: MIMAKI ENGINEERING CO., LTD.
    Inventor: Kenji Harayama
  • Patent number: 10527990
    Abstract: An example method of determining dot gain in a liquid electrophotographic printer is described. The method involves effecting a print operation based on a predetermined digital dot area and measuring an operating current of a binary ink development unit during the print operation. A dot gain between the digital dot area and a physical dot area of a developed image is determined based on a function of the measured operating current.
    Type: Grant
    Filed: July 22, 2016
    Date of Patent: January 7, 2020
    Assignee: HP Indigo B.V.
    Inventors: Sasi Moalem, Yohanan Sivan
  • Patent number: 10518527
    Abstract: A method of printing a print pattern onto a substrate with a print head comprises a plurality of nozzles, where the print head has a rectangular active print head area which includes all of the nozzles. The active print head area is delimited by four sides defining a primary and a secondary direction. The method comprises i) decomposing the print pattern into a plurality of print pattern segments that have dimensions along the primary and secondary direction which are smaller than the dimensions of the active print head area along the primary and secondary direction; ii) assigning each print pattern segment to exactly one nozzle; iii) causing each nozzle to print the print pattern segment assigned to said nozzle. The print head is moved during printing of each print pattern segment within an area that is smaller than said active print head area.
    Type: Grant
    Filed: April 20, 2016
    Date of Patent: December 31, 2019
    Assignee: ETH ZURICH
    Inventors: Dimos Poulikakos, Julian Schneider, Patrick Galliker
  • Patent number: 10513126
    Abstract: A halftone processing of an image processing apparatus includes: performing a drop-less halftone processing on image data of each color corresponding to one or more ink colors including at least one selected from all ink colors of an inkjet printer in descending order of lightness of the all ink colors, the drop-less halftone processing having a minimum drop number per pixel greater than a minimum drop number per pixel in a normal halftone processing of generating drop data having a number of levels corresponding to a maximum drop number per pixel; and performing the normal halftone processing on image data of each color corresponding to the other ink colors other than the one or more ink colors.
    Type: Grant
    Filed: February 14, 2017
    Date of Patent: December 24, 2019
    Assignee: RISO KAGAKU CORPORATION
    Inventor: Kenji Shimomura
  • Patent number: 10507647
    Abstract: Printing an image, using a printing system having a malfunctioning or inoperative nozzle corresponding to a column of affected positions in a half-toned digital image, includes modifying the half-toned digital image, using a pre-print digital processor of the printing system to compute a modified version of the half-toned digital image, such that droplet sizes are increased only in the two neighboring columns and according to a value of a compensation function, and printing the modified half-toned digital image on the target surface. Values of the threshold-based compensation function are based on a luminance-debt function defined by an iterative row-by-consecutive-row computation procedure, where for each iteration step the luminance-debt function is re-calculated according to data representing the ink values of affected positions and data representing the instant value of the compensation function.
    Type: Grant
    Filed: December 31, 2018
    Date of Patent: December 17, 2019
    Assignee: LANDA CORPORATION LTD.
    Inventor: David Tal
  • Patent number: 10511744
    Abstract: An image processing apparatus processes image data to be used in a printing apparatus configured to perform forward and backward scan printing by using a print head in which nozzle arrays corresponding to multiple colors are aligned. The image processing apparatus includes: a setting unit configured to set a first control parameter in a case where image data to be processed does not include a line portion and to set a second control parameter in a case where the image data to be processed includes a line portion, the second parameter being different from the first control parameter; and a processing unit configured to perform, for the image data to be processed, processing to suppress a difference between a color printed in a forward scan and a color printed in a backward scan based on the control parameter set by the setting unit.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: December 17, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Okinori Tsuchiya, Tatsuhiro Yamagata, Yugo Mochizuki, Kouta Murasawa, Toshiki Miyazaki, Masao Kato
  • Patent number: 10506132
    Abstract: A color conversion apparatus includes an accepting unit and a converter. The accepting unit accepts plural colorimetric values obtained by measuring a target color image in plural directions. The converter converts the plural colorimetric values accepted by the accepting unit to color values including a value indicating a coloring-material amount of a luster coloring material and a value indicating a coloring-material amount of a coloring material other than the luster coloring material.
    Type: Grant
    Filed: February 7, 2018
    Date of Patent: December 10, 2019
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Masahiko Kubo, Kaoru Yamauchi, Ayako Watanabe, Yosuke Tashiro, Kaori Iwaki
  • Patent number: 10496906
    Abstract: An inkjet printer injects first ink of a plurality of colors and second ink. An extraction condition setter sets an extraction condition to extract a portion of, or an entirety of, ink dots of the first ink of each of the plurality of colors. An extractor extracts an underlying layer dot group from ink dots of the first ink of each of the plurality of colors based on the extraction condition. Such a plurality of underlying layer dot groups and ink dots of the second ink form a first printing layer. An image dot group including at least the ink dots, of the first ink, other than the underlying dot groups forms at least one additional printing layer.
    Type: Grant
    Filed: June 6, 2018
    Date of Patent: December 3, 2019
    Assignee: ROLAND DG CORPORATION
    Inventors: Yuya Nishihara, Katsuo Ikehata, Yoshinari Ogura, Yasuhito Fujita, Seishin Yoshida, Koji Takahashi, Takeshi Yagi
  • Patent number: 10474135
    Abstract: A 3D printing method adapted for a 3D printer is provided. The 3D printer includes a tank filled with a liquid-state forming material, a platform, a curing module and a control module. At least one of the tank and the platform as well as the curing module are electrically connected to the control module to be controlled by the same, and a 3D object is formed on the platform. The 3D printing method includes analyzing a model of the 3D object to obtain a layered information; the control module correspondingly distributes the layered information at a plurality of forming positions at the bottom of the tank. A forming layer is cured by the curing module and located at a forming position, and then the platform and the tank rotate relatively to move the forming layer to another forming position, and another forming layer is formed at the another forming position.
    Type: Grant
    Filed: April 3, 2018
    Date of Patent: November 12, 2019
    Assignees: XYZprinting, Inc., Kinpo Electronics, Inc.
    Inventors: Tsai-Yi Lin, Chien-Te Lee, Chen-Fu Huang, An-Hsiu Lee
  • Patent number: 10442211
    Abstract: A printing system is disclosed. The printing system includes a printer to print image data to a medium. The printer includes a first pass channel including a first set of pel forming elements to print a first component of the image data and a second pass channel including a second set of pel forming elements to print a second component of the image data, wherein the first component of the image data and the second component of the image data occupy a same region on the print medium. The printing system also includes a print controller to perform uniformity compensation based on a combined compensation of the first pass channel and the second pass channel.
    Type: Grant
    Filed: February 21, 2017
    Date of Patent: October 15, 2019
    Assignee: Ricoh Company, Ltd.
    Inventors: Mikel Stanich, Nikita Gurudath, Larry Ernst, William E. Manchester
  • Patent number: 10440231
    Abstract: A system includes a memory to store at least one Halftone Area Neugebauer Separation (HANS) look-up table (LUT) that represents a predetermined drop weight for N colorant channels of a printer. The HANS LUT provides a given Neugebauer Primary area coverage in response to a device color input value. Measurement data stored in the memory represents measured drop weight values for the N colorant channels of the printer. A processor executes instructions stored in the memory. The instructions are to compute a calibration element for the HANS LUT that describes a drop-weight deviation with respect to the HANS LUT based on the measured drop weight values. The instructions are to apply the calibration element to at least a portion of the HANS LUT to generate a calibrated LUT.
    Type: Grant
    Filed: April 21, 2016
    Date of Patent: October 8, 2019
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Peter Morovic, Jan Morovic
  • Patent number: 10427401
    Abstract: A printing apparatus includes a printhead having a nozzle to eject liquid and an actuator associated with the nozzle. A controller is provided to activate a recovery sequence including heating the printhead without firing drops in a first phase, activating the actuator to fire 1000 drops or more from the nozzle in a second phase after the first phase, and heating the printhead and applying pressure to expel liquid from the nozzle in a third phase after the second phase.
    Type: Grant
    Filed: October 23, 2015
    Date of Patent: October 1, 2019
    Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Ana Cristina Garcia Alvarez, Yit Hong Tor
  • Patent number: 10427416
    Abstract: A recording apparatus includes a head and a controller. The controller discriminates first and second regions on a recording medium based on received image data, sets a boundary region that includes a boundary of the first and second regions, sets a first discharge speed for a discharge speed of droplets from the head to be landed to a first main region included in the first region, sets a second discharge speed slower than the first discharge speed for a discharge speed of droplets from the head to be landed to a second main region included in the second region, and sets a discharge speed between the first discharge speed and the second discharge speed for a discharge speed of droplets form the head to be landed to the boundary region.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: October 1, 2019
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Shuhei Suzuki
  • Patent number: 10377149
    Abstract: A method of printing a print media comprises printing an image onto a surface of a print media, and applying a protective coating over the surface of the print media using an analog printing process, wherein the protective coating comprises a plurality of micro openings.
    Type: Grant
    Filed: September 28, 2016
    Date of Patent: August 13, 2019
    Assignee: HP SCITEX LTD.
    Inventors: Alex Veis, Ran Vilk, Tamir Daya
  • Patent number: 10369812
    Abstract: A computer 10 generates image data of a density image to be printed on a print medium M including an expansion layer M1 that expands by heating. First density image data for printing on one surface FS of the print medium M to expand the expansion layer M1 is prepared first. The first density image data is then converted so that the density of a part of a target region having the same density included in a first density image P1 represented by the first density image data is higher than the density of the other part of the target region, to generate third density image data.
    Type: Grant
    Filed: December 7, 2016
    Date of Patent: August 6, 2019
    Assignee: CASIO COMPUTER CO., LTD.
    Inventors: Katsunori Suzuki, Hitomi Fujimoto
  • Patent number: 10328687
    Abstract: A printer dryer device includes a first drying unit, wherein the first drying unit includes a first plurality of energy-emitting elements to dry a printing substance on a printing medium, wherein the first plurality of energy-emitting elements are electrically connected in series in the first drying unit. The printer dryer device further includes a second drying unit, wherein the second drying unit includes a second plurality of energy-emitting elements to dry the printing substance on the printing medium, wherein the second drying unit is arranged downstream from the first drying unit in a medium transport direction of the printing medium, and wherein the second plurality of energy-emitting elements are electrically connected in series in the second drying unit. At least one energy-emitting element among the second plurality of energy-emitting elements is not electrically connected in series to an energy-emitting element among the first plurality of energy-emitting elements.
    Type: Grant
    Filed: May 31, 2018
    Date of Patent: June 25, 2019
    Assignee: HP SCITEX LTD.
    Inventors: Semion Birger, Alex Veis
  • Patent number: 10286656
    Abstract: A liquid ejecting apparatus includes a nozzle row in which nozzles which discharge a liquid are provided to line up, drive elements for discharging the liquid from the nozzles, and a control unit which drives the drive elements, in which the control unit selects the nozzles which are necessary from the nozzle row based on recording data and causes the liquid to be discharged from the nozzles which are selected at a predetermined timing, and in which a nozzle group is configured by consecutive nozzles which are adjacent to each other among the nozzles which are selected at each timing and a discharge timing of the liquid to be discharged from the nozzles of end portions of the nozzle group is caused to deviate with respect to the discharge timing of the liquid to be discharged from the nozzles other than those of the end portions.
    Type: Grant
    Filed: January 9, 2018
    Date of Patent: May 14, 2019
    Assignee: Seiko Epson Corporation
    Inventor: Akira Miyagishi
  • Patent number: 10286679
    Abstract: A printing apparatus includes six or more inkjet heads, a carriage that is a head holder to hold a plurality of inkjet heads, a main scanning driver, and a sub-scanning driver. The carriage dividedly holds a plurality of inkjet heads in a plurality of arrays including at least a first array in which a plurality of inkjet heads are disposed side by side in a main scanning direction, and a second array in which a plurality of inkjet heads are disposed side by side in the main scanning direction while being dislocated in a sub-scanning direction with respect to the first array. Merely not more than two inkjet heads in the first array ejects an ink droplet, and merely not more than two inkjet heads in the second array ejects an ink droplet with respect to a position of each pixel in a single time of a main scanning operation.
    Type: Grant
    Filed: September 6, 2016
    Date of Patent: May 14, 2019
    Assignee: MIMAKI ENGINEERING CO., LTD.
    Inventor: Masaru Ohnishi
  • Patent number: 10272676
    Abstract: A liquid ejecting device includes: a piezoelectric element that is deformed by applying at least one drive waveform among a plurality of drive waveforms to the piezoelectric element, the plurality of drive waveforms including a first drive waveform and a second drive waveform; a cavity that is filled with a liquid and is increased or decreased in internal pressure due to deformation of the piezoelectric element; a nozzle that communicates with the cavity, and ejects the liquid as a liquid droplet; and a selection section that selects at least one drive waveform from the plurality of drive waveforms, the liquid droplet including a first liquid droplet ejected when the first drive waveform has been selected, and a second liquid droplet ejected when the second drive waveform has been selected, an ejection volume of the first liquid droplet being almost equal to an ejection volume of the second liquid droplet.
    Type: Grant
    Filed: October 13, 2016
    Date of Patent: April 30, 2019
    Assignees: Seiko Epson Corporation, SCREEN Holdings Co., Ltd.
    Inventors: Toshiyuki Yamagata, Toshiki Usui, Naoki Yonekubo, Kiyoomi Mitsuki
  • Patent number: 10245832
    Abstract: Printheads and printers are described herein. In one example, a printhead includes a number of drop generators disposed in a first array and a second array. The drop generators in both the first array and the second array are spaced one dot pitch apart perpendicular to the motion of a print medium, and alternate between a high drop weight (HDW) drop generator and a low drop weight (LDW) drop generator. Each drop generator in the first array is in a line of the motion of the print medium with a corresponding drop generator in the second array, wherein each HDW drop generator in the first array is in line with an LDW drop generator in the second array, and each LDW drop generator in the first array is in line with an HDW drop generator in the second array.
    Type: Grant
    Filed: October 30, 2014
    Date of Patent: April 2, 2019
    Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Lawrence H White, Arun K Agarwal, Ron Burns
  • Patent number: 10203920
    Abstract: An image forming system of an aspect of the present invention includes: a first image forming portion; a second image forming portion connected in series to the first image forming portion; and an assignment determining portion that determines an assignment of image formation of print data to the first image forming portion and the second image forming portion in accordance with contents of the print data. The first image forming portion forms a first image on the continuous sheet on the basis of the assignment determined by the assignment determining portion, and the second image forming portion forms a second image on a region which is different from a region where the first image is formed on the continuous sheet and which overlaps a non-printable region that is a region where the first image forming portion cannot print, on the basis of the assignment determined by the assignment determining portion.
    Type: Grant
    Filed: June 13, 2017
    Date of Patent: February 12, 2019
    Assignee: KONICA MINOLTA, INC.
    Inventor: Masatsugu Kouguchi
  • Patent number: 10205849
    Abstract: A processing apparatus is provided. The processing apparatus includes a controller to process information as part of a Halftone Area Neugebauer Separation printing process to use at least one opaque ink as a process colorant in combination with at least one further process colorant.
    Type: Grant
    Filed: April 28, 2014
    Date of Patent: February 12, 2019
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Jan Morovic, Peter Morovic, Juan Manuel Garcia Reyero Vinas, Ronald Albert Askeland, Andreas Muller, Michel Georges Encrenaz
  • Patent number: 10194057
    Abstract: A method for limiting the amount of ink discharged in a photocurable inkjet printing apparatus includes a conversion step of converting, an input grayscale value to the amount of ink; and a limit value setting step of setting, a limit value of the amount of ink discharged, for each of a secondary color not including a K color component, a tertiary color not including a K color component, and a color including a K color component. In the limit value setting step, the limit value for the tertiary color not including a K color component is set to a smaller value than the limit value for the secondary color not including a K color component, and the limit value for the color including a K color component is set to a smaller value than the limit value for the secondary color not including a K color component.
    Type: Grant
    Filed: July 13, 2016
    Date of Patent: January 29, 2019
    Assignee: Screen Holdings Co., Ltd.
    Inventors: Shigenori Arizono, Ryoko Sakurai, Kohei Ueda, Koji Matsuo
  • Patent number: 10189269
    Abstract: A recording apparatus discharges both high-permeability black ink and low-permeability black ink to a boundary between a color area and a black area.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: January 29, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Ayumi Yasuda, Junichi Saito, Noboru Kunimine, Takumi Kaneko, Rie Takekoshi, Takayuki Ushiyama, Tatsuo Shimmoto, Keita Ishimi
  • Patent number: 10183496
    Abstract: Printing methods and systems are described herein. In one example, a method includes rasterizing a document to create color rasters and linearizing the color rasters to create high drop weight (HDW) planes and low drop weight (LDW) planes. HDW and LDW halftone planes are created from the HDW and LDW planes. The HDW and LDW halftone planes are masked to create HDW and LDW printhead maps, and the HDW and LDW printhead maps are merged into print data. The print data is sent to a number of printheads.
    Type: Grant
    Filed: October 30, 2014
    Date of Patent: January 22, 2019
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Lawrence H White, Arun K Agarwal, Ron Burns
  • Patent number: 10179470
    Abstract: An inkjet recording method for printing an inkjet recording medium comprising an ink-receiving layer containing inorganic pigment, starch and copolymer latex on a surface of a base with inkjet ink as aqueous pigment ink, a content of the inorganic pigment being 10 g/m2 or more to 35 g/m2 or less in the ink-receiving layer, and a content of calcium carbonate being from 80% by weight or more to 100% by weight or less, the inkjet ink containing one or more selected from self dispersed pigment and pigment containing water-insoluble polymer particles, from 10% by weight or more to 48% by weight or less of a water-soluble organic solvent A having a boiling point of 230° C. or less, from 0% by weight or more to 5.0% by weight or less of a water-soluble organic solvent B having a boiling point of 280° C. or more, from 42% by weight or more to 70% by weight or less of water.
    Type: Grant
    Filed: June 24, 2015
    Date of Patent: January 15, 2019
    Assignees: Nippon Paper Industries Co., Ltd., Kao Corporation
    Inventors: Koji Kutsuwa, Masaaki Nakano, Yasufumi Ueda, Teruyuki Fukuda, Kaname Mitsuyoshi, Takayuki Suzuki
  • Patent number: 10160227
    Abstract: In an example implementation, a method of dual and single drop weight printing includes operating a printing system in a hybrid drop weight print mode to enable ejecting black ink from high drop weight nozzles and low drop weight nozzles, and ejecting color ink from high drop weight nozzles but not from low drop weight nozzles.
    Type: Grant
    Filed: April 30, 2015
    Date of Patent: December 25, 2018
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: George C. Ross, Ron Burns
  • Patent number: 10160205
    Abstract: An inkjet recording apparatus includes a piezoelectric element, an extraction processing portion, and a drive control portion. The piezoelectric element is provided in correspondence with a nozzle, and upon input of a first drive signal, causes ink to be ejected from the nozzle. The extraction processing portion, when a print process is executed, extracts a non-ejection period during which a non-ejection state continues for more than a reference time period, from an execution period of the print process based on image data printed in the print process, wherein ink is not ejected from the nozzle in the non-ejection state. The drive control portion inputs a second drive signal for causing the piezoelectric element to stir the ink in the nozzle, to the piezoelectric element during a partial period of the non-ejection period extracted by the extraction processing portion.
    Type: Grant
    Filed: January 25, 2018
    Date of Patent: December 25, 2018
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Toshihiko Tanaka, Toshiaki Mutsuo
  • Patent number: RE47981
    Abstract: The present invention relates to an ink jet recording method for recording a white overlaying layer and a non-white pattern layer to a recording medium, printed matters obtained by the recording method, and systems for realizing the recording method thereof.
    Type: Grant
    Filed: April 22, 2016
    Date of Patent: May 12, 2020
    Assignee: Seiko Epson Corporation
    Inventor: Tsuyoshi Sano