Patents Examined by Lamson Nguyen
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Patent number: 9914264Abstract: A method for compensating for inoperative ejectors in a three-dimensional object printer has been developed. A printer detects an inoperative ejector in a printhead. The printer identifies functional ejectors that print at locations adjacent to locations where the inoperative ejector fails to print a drop. The printer modifies firing signals for the functional ejectors so those ejectors print drops having an increased drop volume at the locations adjacent to locations where the inoperative ejector fails to print a drop. The printer prints a first layer of material drops using the modified firing signals. The printer advances the printhead in the cross-process direction between layers so that locations where the inoperative ejector fails do print a drop do not coincide between layers.Type: GrantFiled: December 16, 2014Date of Patent: March 13, 2018Assignee: Xerox CorporationInventors: David A. Mantell, Jeffrey J. Folkins
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Patent number: 9914303Abstract: A liquid ejecting head includes a first member on which a flexible members is arranged, a second member having a facing surface facing the flexible member, an elastic body that is interposed between the flexible member and the facing surface, a first support portion disposed on the flexible member which supports one end of the elastic body, a second support portion disposed on the facing surface which has a recess of which a side surface has a tapered portion formed therein to guide the other end of the elastic body toward a bottom surface of the recess, and a protruding portion that is disposed on either the flexible member or the facing surface and that becomes interposed between the flexible member and the facing surface around the periphery of the recess when the flexible member is flexibly bent toward the facing surface.Type: GrantFiled: March 17, 2017Date of Patent: March 13, 2018Assignee: Seiko Epson CorporationInventor: Yasuyuki Kudo
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Patent number: 9908326Abstract: According to an example, in a method for enhancing temperature distribution uniformity across a printer die, in which the printer die includes a plurality of drop generators arranged in a plurality of columns, a warming map that identifies the drop generators of the plurality of drop generators that are to be supplied with warming pulses to enhance temperature distribution uniformity across the printer die may be accessed. The warming map may identify a non-uniform distribution of the drop generators across a column of the plurality of columns. In addition, the warming map may be implemented to supply the drop generators identified in the warming map as the drop generators that are to receive the warming pulses.Type: GrantFiled: April 24, 2014Date of Patent: March 6, 2018Assignee: Hewlett-Packard Development Company, L.P.Inventors: Clayton L Holstun, Kelly Ronk, James A Feinn
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Patent number: 9908350Abstract: The printer in the exemplary embodiment includes a functional unit Y. The functional unit Y includes: an opening and closing cover 3; a platen roller 10; a thermal head 28, a control board unit 40 and a battery container 33. The functional unit Y is accommodated in a body case. A front cover 5 is fixed to a body case 2. The front cover 5 enables the opening and closing cover 3 to be opened and closed, and protects the functional unit Y.Type: GrantFiled: April 8, 2015Date of Patent: March 6, 2018Assignee: SATO HOLDINGS KABUSHIKI KAISHAInventors: Tamotsu Katayama, Kenji Hirose
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Patent number: 9908327Abstract: In one example, a printhead assembly includes multiple printheads arranged along a line in a staggered configuration in which each printhead in a group of far printheads overlaps a printhead in a group of near printheads. Each printhead includes a pedestal, a printhead die mounted to the pedestal, an IC to drive fluid ejector elements in the printhead die, and a flex circuit. The IC is connected to the printhead die and mounted to the pedestal next to the die. The body of a flex circuit is connected to and covers the IC. The tail of each flex circuit from a far printhead extends past a pedestal in a near printhead.Type: GrantFiled: April 23, 2014Date of Patent: March 6, 2018Assignee: Hewlett-Packard Development Company, L.P.Inventors: Silam J Choy, Peter James Fricke
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Patent number: 9902149Abstract: A liquid injection device includes a driving signal correction circuit correcting a reference driving signal based on a temperature detected by a temperature sensor. The driving signal correction circuit includes a first correction circuit that corrects injection pulses excluding a liquid drop injection speed-controlling injection pulse when the temperature detected by the temperature sensor is lower than or equal to a predetermined reference temperature, and a second correction circuit that corrects all of the injection pulses when the temperature detected by the temperature sensor is higher than the predetermined reference temperature.Type: GrantFiled: April 12, 2017Date of Patent: February 27, 2018Assignee: ROLAND DG CORPORATIONInventor: Keisuke Misawa
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Patent number: 9902179Abstract: In an ink jet recording device in which a paper supporting part is constituted by a first support and a second support having a comb teeth structure, a region where paper is supported by only the first support is defined as a first region, a region where the paper is supported by only the second support is defined as a second region, and a region where the paper is supported by the first support and the second support is defined as a third region. Charts including a plurality of grayscales for the respective regions are drawn. The respective drawn charts are read by an image reader. Correction values of density unevenness are obtained for the respective regions on the basis of the reading results. Density data of an image are corrected for the respective regions on the basis of the correction values of the density unevenness for the respective regions.Type: GrantFiled: April 7, 2017Date of Patent: February 27, 2018Assignee: FUJIFILM CorporationInventor: Jun Yamanobe
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Patent number: 9902166Abstract: An ejection chip is disclosed, and comprises a substrate, a flow feature layer, a nozzle plate, and one or more valves. The substrate includes one or more fluid channels and one or more fluid ports each in communication with at least one of the one or more fluid channels. The flow feature layer is disposed over the substrate, and the flow feature layer include one or more flow features each in communication with at least one of the one or more fluid ports. The nozzle layer is disposed over the flow feature layer, and the nozzle layer includes one or more nozzles each in communication with at least one of the one or more flow features so that one or more fluid paths are defined by the one or more fluid channels, the one or more fluid ports, the one or more flow features, and the one or more nozzles. The one or more valves selectively impede flow of fluid through the one or more fluid paths.Type: GrantFiled: April 11, 2017Date of Patent: February 27, 2018Assignee: Funai Electric Co., Ltd.Inventors: Eunki Hong, Burton L. Joyner, Daniel R. Gagnon, Wade A. Powell, Yimin Guan, Timothy L. Strunk
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Patent number: 9895888Abstract: In one example, a fluid flow structure includes a fluid dispensing micro device embedded in a molding having a channel therein through which fluid may flow directly to the device. The device contains multiple fluid ejectors and multiple fluid chambers each near an ejector. Each chamber has an inlet through which fluid from the channel may enter the chamber and an outlet through which fluid may be ejected from the chamber. A perimeter of the channel surrounds the inlets but is otherwise unconstrained in size by the size of the device.Type: GrantFiled: April 22, 2014Date of Patent: February 20, 2018Inventors: Chien-Hua Chen, Michael W Cumbie, Diane R Hammerstad
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Patent number: 9895909Abstract: In accordance with an embodiment, a printer comprises a label holding section configured to hold a label roll formed by winding a belt-shaped label on the back surface of which an adhesive layer activated through heating at a temperature lower than a thermal color developing temperature of a printing surface is arranged without a mount; a cutting section configured to sandwich the label from the printing surface side and the adhesive layer side to cut it; and a printing section configured to be arranged at the downstream side of a label conveyance direction with respect to the cutting section and print on the printing surface of the label through a thermal head.Type: GrantFiled: September 8, 2016Date of Patent: February 20, 2018Assignee: TOSHIBA TEC KABUSHIKI KAISHAInventor: Tsutomu Fujiwara
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Patent number: 9895912Abstract: To provide a printing method capable of inhibiting a paper sheet from being damaged at the time of conveyance and efficiently starting reprinting with high positional accuracy after printing is once stopped. The present invention is directed to a printing method of printing a unit image G by a printing part 2 based on detection of a reference punched hole 41 of a hole detection sensor 4 to form a print portion P1, then stopping printing to form a non-print portion P0, then by a mark detection sensor 3 detecting a register mark G2, recognizing a boundary between the print portion P1 and the non-print portion P0, and reprinting the unit image G from the non-print portion P0 based on detection of the reference punched hole 41 by the hole detection sensor 4.Type: GrantFiled: April 3, 2017Date of Patent: February 20, 2018Assignee: MIYAKOSHI PRINTING MACHINERY CO., LTD.Inventors: Hideo Izawa, Osamu Ebuchi
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Patent number: 9889661Abstract: A liquid ejecting head includes a liquid ejecting unit that has a nozzle surface to which the nozzle is open, a base member to which the liquid ejecting unit is fixed, and a cover member that is attached to the base member and on which a laminated member is laminated, in which the cover member has a fixing portion to which the laminated member is fixed and a fragile portion that has lower rigidity than the fixing portion, and is attached to the base member by fixing the fragile portion to the base member.Type: GrantFiled: March 17, 2017Date of Patent: February 13, 2018Assignee: Seiko Epson CorporationInventors: Ryota Kinoshita, Masahisa Nawano
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Patent number: 9884488Abstract: Generation of cockling is suppressed to enable superior image quality printing. An inkjet printing device is provided with a head discharging ultraviolet curing ink onto a medium, pinning irradiation sections irradiating the ultraviolet curing ink on the medium with light, and a curing irradiation section arranged on a downstream side of the pinning irradiation sections in a conveying direction of the medium, and radiating light with a shorter wavelength than the pinning irradiation sections.Type: GrantFiled: April 8, 2015Date of Patent: February 6, 2018Assignee: MIMAKI ENGINEERING CO., LTD.Inventors: Kazuki Ohara, Tomotaka Furuhata
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Patent number: 9884481Abstract: A printing apparatus including a head unit 12, a main scan driver 14, and a controller 20 is provided. The head unit 12 includes a first-color nozzle and a second-color nozzle, and performs main scan operations in an outward direction and main scan operations in a homeward direction. During each main scan operation, the controller 20 selects some pixels, as first-color ejection object pixels for which ink drops of a first color should be ejected, from pixels included in an area of a medium 50 which is an object of the corresponding main scan operation, and selects at least some pixels other than the first-color ejection object pixels, as second-color ejection object pixels for which ink drops of a second color should be ejected, from the pixels included in the area of the medium which is the object of the corresponding main scan operation.Type: GrantFiled: March 13, 2015Date of Patent: February 6, 2018Assignee: MIMAKI ENGINEERING CO., LTD.Inventor: Eiichi Ohara
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Patent number: 9878563Abstract: A printer includes a print head, a platen roller, a frame, a release lever, and a spring. The print head performs printing on recording paper. The platen roller conveys the recording paper held between the platen roller and the print head. The print head and the platen roller are placed on the frame. The frame includes a side plate in which a frame groove is formed. The release lever moves relative to the frame. The spring is provided between the frame and the print head to urge the print head toward the platen roller. The platen roller is placed on the frame while being held between the frame groove and the release lever. The release lever moves to unblock the frame groove.Type: GrantFiled: July 6, 2015Date of Patent: January 30, 2018Assignee: FUJITSU COMPONENT LIMITEDInventors: Kohei Takahashi, Masahiro Kaneko, Nobuo Yatsu, Takuya Uchiyama, Yayoi Tokuhara, Ying Li, Katsuaki Koshimura, Chuqi Liang, Miki Kitahara
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Patent number: 9878536Abstract: The present invention contains a printing apparatus and a method, e.g., for ejecting inks (i.e. pure liquids, mixtures, colloids, etc.) for a very broad range of physical properties (such as viscosity). Acoustic forces 3a may be generated by an emitter 1 and a reflector 2 to detach droplets 10 from a nozzle 6. The ink may be advanced through the nozzle 6 by a standard back pressure system 5. A reflectorless chamber 7 may enhance acoustic forces 8a and the droplets 10 may be ejected at a bottom 9 of said chamber 7, so that droplets 10 may be deposited on any substrate 11.Type: GrantFiled: January 23, 2015Date of Patent: January 30, 2018Assignee: President and Fellows of Harvard CollegeInventors: Daniele Foresti, Dimos Poulikakos, Manish Kumar Tiwari
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Patent number: 9878547Abstract: A cleaning liquid supplying apparatus includes a first storage section, a pressure-accumulating second storage section, a plurality of cleaning liquid ejecting sections, a liquid sending section, a plurality of individual flow channel opening/closing sections, and a control section. The first storage section stores cleaning liquid. The cleaning liquid ejecting sections are connected to the second storage section via a plurality of individual flow channels having upstream ends located at positions where the upstream ends are open to a liquid reservoir when a predetermined amount of the cleaning liquid is stored in the second storage section. The liquid sending section is provided midway along a first flow channel and sends the cleaning liquid in the first storage section to the second storage section. The individual flow channel opening/closing sections open/close the respective individual flow channels.Type: GrantFiled: March 17, 2017Date of Patent: January 30, 2018Assignee: Seiko Epson CorporationInventors: Seiko Hamamoto, Toshio Kumagai, Hiroshi Asawa
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Patent number: 9873261Abstract: An apparatus to calibrate a printer. The apparatus comprises a controller to: control deposition of white printing material on media, the white printing material having an opacity of at least 55%; control deposition of non-white printing material on the white printing material; receive data for at least one sensed characteristic of the non-white printing material; and calibrate the printer using the received data for the at least one sensed characteristic of the non-white printing material.Type: GrantFiled: April 25, 2014Date of Patent: January 23, 2018Assignee: HP Indigo B.V.Inventors: Ran Waidman, Sasi Moalem, Gregory Braverman, Eyal Shelef, Shlomo Harush
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Patent number: 9873257Abstract: A printing apparatus includes: a platen having a supporting surface configured to support a recording medium; a liquid droplet jetting head having a nozzle surface on which nozzles are open; a head moving unit configured to move the liquid droplet jetting head in a head movement area including a first area and a second area which is adjacent to the first area; a maintenance mechanism including a cap member configured to be movable in a cap movement area which includes a retracted position and a capping position and to cover the nozzles; a cap moving mechanism configured to move the cap member by utilizing movement of the liquid droplet jetting head form the first area to the second area; and a cap guiding mechanism configured to guide movement of the cap member in the cap movement area in an inclined direction.Type: GrantFiled: April 17, 2017Date of Patent: January 23, 2018Assignee: Brother Kogyo Kabushiki KaishaInventor: Rie Higuchi
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Patent number: 9873266Abstract: A printing apparatus includes a plasma treatment unit that performs plasma treatment on a surface of a treatment object to acidify at least the surface of the treatment object; and a recording unit that performs inkjet recording on the surface of the plasma treatment subjected to the plasma treatment by the plasma treatment unit.Type: GrantFiled: March 10, 2017Date of Patent: January 23, 2018Assignee: Ricoh Company, Ltd.Inventors: Junji Nakai, Hiroyoshi Matsumoto, Masakazu Yoshida, Souichi Nakazawa, Tatsuro Watanabe, Hiroyuki Hiratsuka, Koji Nagai
