Patents Assigned to Miyakoshi Printing Machinery Co., Ltd.
  • Patent number: 8147042
    Abstract: An ink jet recorder that includes line heads (4) having a plurality of nozzle heads (41), main tanks (13) placed outside of the line heads (4) to store ink; an ink supply passage (13a, 49a, 49c) that connects the main tanks (13) to the associated nozzle heads (41), and distribution tanks (6) placed in each line head (4). The number of supply tube connections (67) provided in the distribution tank (6) is smaller than that of the nozzle heads (41) arranged in the line head (4).
    Type: Grant
    Filed: January 9, 2009
    Date of Patent: April 3, 2012
    Assignees: Miyakoshi Printing Machinery Co., Ltd., Panasonic Corporation
    Inventors: Hiroyuki Matsuba, Yoshinobu Ishimoto, Tetsuya Matsuzaki, Hideo Izawa, Takao Namiki
  • Patent number: 8121513
    Abstract: A cleanable electrophotographic printer that meets the requirement for high speed printing on a continuous web of paper as the printing medium and which minimizes the amount of toner that remains on the surface of a rotating transfer roller even in high-speed production, wherein the electrophotographic printer is provided with a carrier solution supply device disposed in an area upstream of a transfer roller cleaning device in the rotation direction of the rotating transfer roller for supplying the surface of the rotating transfer roller with a carrier solution.
    Type: Grant
    Filed: December 9, 2008
    Date of Patent: February 21, 2012
    Assignee: Miyakoshi Printing Machinery Co., Ltd.
    Inventors: Hideo Izawa, Junichi Setoyama, Nobuyuki Kikuchi
  • Publication number: 20120038706
    Abstract: A method of wiping a line blade with a blade is disclosed that prevents premature wear and break of the blade and preserving its elastic deformation from soiling the environment.
    Type: Application
    Filed: August 10, 2011
    Publication date: February 16, 2012
    Applicant: Miyakoshi Printing Machinery Co., Ltd.
    Inventors: Hideo IZAWA, Akira Ishikawa, Wataru Itabashi
  • Publication number: 20120007915
    Abstract: It is sought to have a cap member sized to cover the entire lower surface of an ink jet head having numbers of nozzle heads, to improve intimacy of contact of the cap member with a carriage of the ink jet head, to obtain an enhanced airtightness between them and to enable the cap member to be manufactured roughly and at low cost.
    Type: Application
    Filed: July 7, 2011
    Publication date: January 12, 2012
    Applicant: Miyakoshi Printing Machinery Co., Ltd.
    Inventors: Hideo IZAWA, Takao Namiki, Wataru Itabashi
  • Patent number: 8087358
    Abstract: To enable fabric of any length to be continuously printed without causing a textile printing unit to cease its operation, a textile printing method is provided in which fabric is conveyed by a conveyer belt and passed through a printing section to print on the fabric, the printing section having a textile printing ink jet printer disposed opposite the conveyer belt, wherein the printing section is continuously supplied with the fabric comprising a plurality of successive sheets of fabric, each sheet having a given length, such a sheet of fabric for supply into the printing section having a terminal end tied with a starting end of a sheet of a fabric for continuous succeeding supply in the state that the terminal and starting ends are in contact with each other.
    Type: Grant
    Filed: October 1, 2009
    Date of Patent: January 3, 2012
    Assignee: Miyakoshi Printing Machinery Co., Ltd.
    Inventors: Hideo Izawa, Takao Namiki, Akira Ishikawa, Yuuichi Yamazaki
  • Publication number: 20110314688
    Abstract: A drum-type drying device according to the invention includes a cylindrical drum section that is rotatably supported and rotated by winding a base material on the drum section, engaging portions that are disposed in an inner cavity of the drum section, and a heating section that includes engaged portions detachably engaged with the engaging portions.
    Type: Application
    Filed: June 22, 2011
    Publication date: December 29, 2011
    Applicant: MIYAKOSHI PRINTING MACHINERY CO., LTD.
    Inventors: Hideo IZAWA, Takao NAMIKI, Yuuichi YAMAZAKI
  • Publication number: 20110274466
    Abstract: A wet type developing apparatus comprises a set charger positioned opposite to a surface of the developing roller, a liquid developer applying means disposed at one of a position is opposite to a surface of the developing roller and a position opposite to a surface of the cleaning roller, a first cleaning blade disposed in contact with a surface of the cleaning roller downstream the area of rotational contact of the cleaning roller with the developing roller in the rotation direction of the cleaning roller and a second cleaning blade disposed in contact with a surface of the developing roller downstream of the area of rotational contact of the cleaning roller with the developing roller in the rotation direction of the developing roller.
    Type: Application
    Filed: May 4, 2011
    Publication date: November 10, 2011
    Applicant: MIYAKOSHI PRINTING MACHINERY CO., LTD.
    Inventors: Hideo Izawa, Junichi Setoyama, Kotaro Harada
  • Publication number: 20110249990
    Abstract: A wet type developing apparatus is provided which allows printing in a quality that is stable at an increased printing speed and also with changes in physical property of a liquid developer. The wet type developing apparatus to this end includes a liquid developer feed pathway which comprises a developing roller 7 for feeding the liquid developer onto a photoconductor drum 3; an anilox roller 9 immersed in part in the liquid developer and driven to rotate in rotational contact with the developing roller; and a doctor blade 11 disposed in contact with a surface of the anilox roller for controlling the rate of drawing up of the liquid developer. The developing and anilox rollers have their peripheral surfaces moving in an identical direction and at an identical rate of movement in an area of their rotational contact.
    Type: Application
    Filed: April 5, 2011
    Publication date: October 13, 2011
    Applicant: MIYAKOSHI PRINTING MACHINERY CO., LTD.,
    Inventors: Hideo Izawa, Junichi Setoyama, Takao Namiki, Sumito Mera
  • Publication number: 20110199452
    Abstract: A method of correcting print images in an electrophotographic printer wherein an image formed by a print head (3) on a peripheral surface of a photoconductor drum (1) is transferred and printed on a sheet of paper. The method comprises: furnishing the print head with a standard tacho signal in the form of pulses and thereby printing on a sheet of paper a check mark (9) for each given number of pulses of the standard tacho signal while the photoconductor drum makes one rotation; by means of a camera (10), detecting a periodic deviation in each spacing between successive such check marks; in response to the deviation in each spacing between the successive check marks, varying the pulse width of pulses of the standard tacho signal for each spacing between the successive check marks, thereby to provide a modified tacho signal; and effecting printing thereafter based on the modified tacho signal.
    Type: Application
    Filed: February 8, 2011
    Publication date: August 18, 2011
    Applicant: MIYAKOSHI PRINTING MACHINERY CO., LTD.
    Inventors: Hideo Izawa, Yasushi Katagiri, Osamu Ebuchi
  • Patent number: 7991343
    Abstract: A photoconductor drum cleaning apparatus in an electrophotographic printer is disclosed which is simple in makeup, which allows a wiping roll to be rotated to follow rotation of the photoconductor drum is rotated and to be serviced for a prolonged life and is capable of performing an improved cleaning operation.
    Type: Grant
    Filed: December 9, 2008
    Date of Patent: August 2, 2011
    Assignee: Miyakoshi Printing Machinery Co., Ltd.
    Inventors: Hideo Izawa, Junichi Setoyama, Nobuyuki Kikuchi
  • Publication number: 20110181662
    Abstract: In an ink jet printer having a plural number of line heads arranged in a paper printing direction, it is sought to render the printing density high in the nozzle row direction without the need to exchange the line heads. The invention provides an ink jet printer in which line heads other than at least one of the line heads 3 are each displaceable by a distance that is equal to a part per the plural number of a nozzle pitch in the line head in a direction of the nozzle row.
    Type: Application
    Filed: January 7, 2011
    Publication date: July 28, 2011
    Applicant: MIYAKOSHI PRINTING MACHINERY CO., LTD.
    Inventors: Hideo Izawa, Takao Namiki, Kouichi Ooyama, Masahito Sato
  • Publication number: 20110181658
    Abstract: Fluttering of paper traveling opposite to and parallel to a nozzle width region of an ink jet head is held down, thereby improving the printing quality. An ink jet recording apparatus comprises an ink jet printer including printing units (7, 7?) whereby a sheet of paper (2) traveling in a paper passage in the form of an arch shaped by a plurality of guide rollers (12a-12h) is printed by a plurality of ink jet heads (6a-6d, 6a?-6d?). The ink jet heads of the printing units comprise ink jet heads of on-demand type having a plurality of nozzle rows of a nozzle width region in a direction of travel of paper. The paper passage opposite to nozzle faces of each ink jet head nozzle defined by two guide rollers (12a, 12b) positioned at an upstream and at a down-stream side in the direction of travel of paper, respectively.
    Type: Application
    Filed: August 24, 2009
    Publication date: July 28, 2011
    Applicant: MIYAKOSHI PRINTING MACHINERY CO., LTD.
    Inventors: Hideo Izawa, Takao Namiki, Akira Ishikawa, Yuuichi Yamazaki
  • Publication number: 20110129319
    Abstract: An apparatus for making a booklet-like product comprises a paper feeding part; a superposing part for superposing a plurality of continuous webs of paper fed to travel from the paper feeding part, whereby a layered continuous sheet of paper is prepared; a cutting part for cutting the layered continuous sheet into successive separate layered sheets of paper; a conveyance passage; and a stacking and ejection part for causing the separate layered sheets traveling along the conveyance passage to be piled every predetermined number thereof and to be ejected in the form of piles of sheets, each to form the booklet-like product. The superposing part is provided with a paste nozzle for applying paste to one of two adjacent such continuous webs of paper on its one side and a further paste nozzle for applying paste to the upper surface of the layered continuous sheet.
    Type: Application
    Filed: November 23, 2010
    Publication date: June 2, 2011
    Applicant: MIYAKOSHI PRINTING MACHINERY CO., LTD.
    Inventors: Isamu Kaneko, Hiroshi Yasuzawa, Tetsu Ohno, Kou Kusume
  • Publication number: 20110026991
    Abstract: An electrophotographic printer is configured such that an infrared heater is installed at a position between a plurality of electrophotographic print units installed in of the flow direction of a recording material, and a part (an inter-unit extension part) situated between print units of the recording material is irradiated with infrared light from the infrared heater to perform a partial evaporative removal of a carrier liquid of the recording material and a partial fixing of a toner.
    Type: Application
    Filed: July 27, 2010
    Publication date: February 3, 2011
    Applicant: MIYAKOSHI PRINTING MACHINERY CO., LTD.
    Inventors: Hideo IZAWA, Junichi SETOYAMA
  • Publication number: 20110013942
    Abstract: A wet type developing apparatus in which a liquid developer is fed onto a developing roller from a liquid developer supply roller immersed in the developing liquid within a liquid developer tank and an electrostatic latent image formed on a photoconductor drum is developed into a toner image by said developing roller is improved to enable the liquid developer to be kept fed at an appropriate amount of feed from the liquid developer supply roller onto the developing roller without air residual in the surface region of the liquid developer supply roller. The improvement comprises a partition plate disposed generally under the liquid developer supply roller within the liquid developer tank for partitioning the liquid developer tank into two in the direction of rotation of the liquid developer supply roller, the partition plate having its upper end juxtaposed with a peripheral surface of the liquid developer supply roller over its total axial length across a gap spacing between 0.05 and 0.5 mm.
    Type: Application
    Filed: July 16, 2010
    Publication date: January 20, 2011
    Applicant: Miyakoshi Printing Machinery Co., Ltd.
    Inventors: Hideo Izawa, Junichi Setoyama
  • Publication number: 20100284709
    Abstract: To remove a surplus carrier liquid after development on the surface of a photoconductor drum to obtain homogeneous printed images without being affected by an error in rotational accuracy of such as a carrier liquid removing roller, there is provided a wet type electrophotographic printer in which the carrier liquid removing roller 14 of a carrier liquid removing unit 8 is caused to come in rotational contact with the photoconductor drum 1 to remove a carrier liquid from the liquid toner image, thereby making a toner image for transfer onto a recording medium 7, the wet type electrophotographic printer being so configured that the carrier liquid removing roller in rotational contact with the photoconductor drum is urged against the latter under an urging force made adjustable; and a scraping blade 23 is brought into contact with the carrier liquid removing roller while being urged against the latter under an urging force made adjustable.
    Type: Application
    Filed: April 20, 2010
    Publication date: November 11, 2010
    Applicant: Miyakoshi Printing Machinery Co., Ltd.
    Inventors: Hideo IZAWA, Junichi Setoyama, Kotaro Harada, Sumito Mera
  • Patent number: 7824023
    Abstract: It is desirable that the entire ink to be furnished to the nozzle head be deaerated efficiently, the entire ink including a portion of ink recovered from the purge section. Accordingly, an ink furnishing unit in an ink jet recorder is provided, which comprises a back pressure tank 15 connected to a nozzle head 2 via an ink supply passage, a main tank 9 connected to the back pressure tank via a main supply passage 16 provided with a main ink pump 18 therein, a recovery tank 7 connected to the main tank via a return passage provided with an ink pump 22 therein, and a purge cap 5 connected to the recovery tank via a recovery passage 8 provided with a purge pump 6 therein, the purge cap being opposed to the nozzle head when purging, wherein a deaerator 17 is disposed in the main supply passage connecting the main tank and the back pressure tank and the back pressure tank is connected to an upstream of the purge pump in the recovery passage via a three way directional control valve 30.
    Type: Grant
    Filed: June 12, 2006
    Date of Patent: November 2, 2010
    Assignee: Miyakoshi Printing Machinery Co., Ltd.
    Inventors: Hideo Izawa, Takao Namiki, Akira Ishikawa, Junichi Setoyama
  • Patent number: 7817935
    Abstract: An electrophotographic printer in which a photoconductor drum and a transfer drum can be supported in a simple component construction and in the makeup free from misalignment and development of thrust load.
    Type: Grant
    Filed: December 24, 2008
    Date of Patent: October 19, 2010
    Assignee: Miyakoshi Printing Machinery Co., Ltd.
    Inventors: Hideo Izawa, Junichi Setoyama, Kouichi Ooyama
  • Patent number: 7810921
    Abstract: To allow continuous paper to be printed a plurality of times with a time difference by ink jet printer equipment and dried each time of printing while preventing condensation from occurring on an ink discharge surface of print head at and after the second time of printing, there is provided a printing apparatus comprising: a plurality of trains of printing units each of which has print heads arranged along a direction in which a continuous sheet of paper travels and which are arranged parallel to one another as shifted mutually in position in a direction of width of the continuous sheet of paper; a dryer section in which a plurality of continuous sheets of paper from the plural printing unit trains can travel as mutually shifted in position in a direction of width of the continuous sheet of paper; a cooling roller unit disposed downstream of the dryer section and having a cooling roller on which the plurality of continuous sheets of paper from the dryer section can be wound as mutually shifted in position in
    Type: Grant
    Filed: January 23, 2007
    Date of Patent: October 12, 2010
    Assignee: Miyakoshi Printing Machinery Co., Ltd.
    Inventors: Hideo Izawa, Akira Ishikawa
  • Patent number: 7792442
    Abstract: A electronic photograph printer includes a density-measurement section and a density controller section. The density-measurement section includes a density sensor 31 for measuring densities of images printed on a web by electronic-photograph-printing units. The density controller section adjusts densities of images which are about to be printed on the web by the electronic-photograph-printing units based on measurement data obtained by using the density sensor 31 associated with the densities of the image on the web. This configuration enables accurate and stable print-density control at a low cost.
    Type: Grant
    Filed: February 11, 2009
    Date of Patent: September 7, 2010
    Assignee: Miyakoshi Printing Machinery Co., Ltd.
    Inventors: Hideo Izawa, Yasushi Katagiri, Osamu Ebuchi