For Hot-melt Fluid (e.g., Phase-change) Patents (Class 347/88)
  • Patent number: 10414583
    Abstract: Effective systems for separating, collecting and transferring organic waste from multi-unit residential buildings to deliver to composting centers are described which facilitate the reduction of contamination of the organic waste with non-compostable plastic bags. This is accomplished both by ensuring that the residents are constantly provided with compostable replacement bags for their kitchen caddies after each delivery of a bag by the resident to the recycling room, and through consistent marking that reminds residents of the system's requirements.
    Type: Grant
    Filed: May 29, 2015
    Date of Patent: September 17, 2019
    Assignee: EcoSafe Zero Waste Inc.
    Inventors: Eric Mallett, Philip D. Ragan, Richard M. Freeman, Geoffrey B. Woolley
  • Patent number: 10293616
    Abstract: An ink supply system for supplying ink to a drop-forming unit of a print-head in a printing apparatus includes a reservoir for holding or storing a volume of liquid ink to be supplied to a drop-forming unit in a print-head, and a heating device arranged upstream of the reservoir for heating the ink to an desired operating temperature. The heating device includes a heating body for transferring heat to the ink, wherein the heating body includes a plurality of channels which extend from an top side of the heating body to an bottom side of the heating body for conveying the ink to the reservoir, whereby the ink is heated via contact with walls of the channels. The heating body typically includes a substantially monolithic body of a highly thermally conductive material and the plurality of channels are substantially parallel channels which extend through the heating body. A print-head of a printing apparatus incorporating the ink supply system, and a heating device are also disclosed.
    Type: Grant
    Filed: June 26, 2018
    Date of Patent: May 21, 2019
    Assignee: OCÉ HOLDING B.V.
    Inventor: Roy H. R. Jacobs
  • Patent number: 10258310
    Abstract: The ultrasonic probe includes a transducer array that generates ultrasonic waves, a backing layer that is provided on a rear surface of the transducer array, a pulsating heat pipe that absorbs heat generated in the transducer array, and a heat radiation unit that receives the heat from the pulsating heat pipe to emit the received heat to the outside.
    Type: Grant
    Filed: February 4, 2015
    Date of Patent: April 16, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sung Ki Kim, Chang Yeon Won
  • Patent number: 10166770
    Abstract: A heating device along a slot of a print head is selectively actuated to form temperature gradients within fluid along the slot to facilitate convective fluid flow within and along the slot.
    Type: Grant
    Filed: July 31, 2015
    Date of Patent: January 1, 2019
    Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Bradley D. Chung, R. William Grobman, Daniel B. Brown
  • Patent number: 10118390
    Abstract: An inkjet print head including a plurality of single jet elements. Each of the single jet elements includes an aperture configured to eject ink during a jetting event, and a channel for receiving ink, the channeling including a recirculation portion configured to receive ink during a non-jetting event. The print head also includes a first manifold structured to supply ink to the channel, and a second manifold structured to receive ink from the recirculation portion of the channel. The ink flows from the inlet portion to the second outlet portion during non-jetting through the second outlet portion.
    Type: Grant
    Filed: October 23, 2017
    Date of Patent: November 6, 2018
    Assignee: XEROX CORPORATION
    Inventors: Terrance L. Stephens, David A. Tence, Ryan J. Evens
  • Patent number: 9925785
    Abstract: A liquid discharge head includes a plurality of nozzles, a plurality of individual liquid chambers, a common liquid chamber, a common circulation liquid chamber, and a filter portion. The common liquid chamber includes a first portion disposed side by side with the common circulation liquid chamber in a direction perpendicular to a nozzle array direction in and a second portion not disposed side by side with the common circulation liquid chamber in the direction perpendicular to the nozzle array direction. In a plan view, the second portion partially overlaps the common circulation liquid chamber in the direction perpendicular to the nozzle array direction. A width of the second portion in the direction perpendicular to the nozzle array direction is greater than a width of the first portion in the direction perpendicular to the nozzle array direction. In the plan view, the filter portion is disposed in the second portion.
    Type: Grant
    Filed: September 6, 2016
    Date of Patent: March 27, 2018
    Assignee: RICOH COMPANY, LTD.
    Inventors: Takahiro Yoshida, Tomohiko Kohda, Takayuki Nakai
  • Patent number: 9822267
    Abstract: An ink composition useful for digital offset printing applications includes a colorant and a high viscosity thickening agent. The ink is formulated to incorporate polyester viscosity modifier to help meet the requirement of two different viscosity or temperature pairs at two different stages of the process. In digital offset printing a bulk ink is first transferred onto an anilox roll, and then from the anilox roll onto the imaging cylinder blanket. During the bulk ink to anilox roll the disclosed ink has a low viscosity while the transfer from roll to imaging blanket the ink has a higher viscosity. The addition of the polyester viscosity modifier increases the viscosity difference within the allowable temperature range, thus, increasing process latitude and robustness.
    Type: Grant
    Filed: September 12, 2016
    Date of Patent: November 21, 2017
    Assignee: Xerox Corporation
    Inventors: James D. Mayo, Guerino G. Sacripante, Marcel P. Breton, Aurelian Valeriu Magdalinis, Jonathan Siu-Chung Lee, Mihaela Maria Birau
  • Patent number: 9771649
    Abstract: A substrate carrier unit includes a substrate carrier and a phase transition material. The substrate carrier defines an isolated space therein. The phase transition material is filled into the isolated space of the substrate carrier and has a melting point ranging between 18° C. and 95° C. The phase transition material is capable of absorbing thermal energy from the substrate carrier as latent heat to change the phase from solid to liquid.
    Type: Grant
    Filed: May 5, 2015
    Date of Patent: September 26, 2017
    Assignee: Linco Technology Co., Ltd.
    Inventors: Chung-Yu Yeh, Huei-Chia Su, Cheng-Peng Yeh, Tsung-Wei Chang, Yi-Yuan Huang, Wan-Yu Huang, Mu-Sen Lu
  • Patent number: 9701112
    Abstract: An ink jet recording apparatus including: a head that ejects droplets of ink; a flow passage portion; and a temperature adjustment unit. The flow passage portion supplies the ink to the head. The flow passage portion includes, in a part thereof, a reservoir unit that reserves the ink. The temperature adjustment unit is capable of adjusting temperatures of the flow passage portion and the head independently of each other. The temperature adjustment unit controls the temperatures of the flow passage portion and the head so that the ink in the head becomes liquid from solid after ink in the flow passage portion is turned to liquid from solid.
    Type: Grant
    Filed: August 20, 2015
    Date of Patent: July 11, 2017
    Assignee: KONICA MINOLTA, INC.
    Inventors: Takakazu Kuki, Takashi Muramatsu
  • Patent number: 9656463
    Abstract: Embodiments described herein provide determining an ink drop size. One embodiment comprises a system that includes a printhead fluidly coupled to an ink input supply, and a controller to direct the printhead to eject drops of ink of an ink drop type. The system further includes an ink output estimator to estimate an ink output amount ejected from the printhead based on an estimated quantity of the ejected drops of ink of the ink drop type and an estimated size of the drop type, and an ink measurement device to measure an ink input amount provided by the ink input supply to the printhead. The system also includes a correction module to adjust the estimated size of the drop type based on the ink output amount and the ink input amount for a printing operation.
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: May 23, 2017
    Assignee: Ricoh Company, Ltd.
    Inventors: Larry M Ernst, Mikel John Stanich
  • Patent number: 9649860
    Abstract: A printer is provided for forming a phase change inkjet image on a print substrate. The printer includes a sheet transport unit for advancing the sheet along a print station. The sheet transport unit includes a sheet support platen, a sheet attraction mechanism and a feed mechanism. The sheet support platen includes a print surface for supporting a contact side of the print substrate. The sheet attraction mechanism is arranged for attracting the print substrate to the print surface. The feed mechanism is arranged for advancing the print substrate in a transport direction over the print surface, wherein the feed mechanism is arranged upstream of the print surface. The print station includes a print head assembly, the print head assembly being arranged for providing ink droplets for forming the phase change inkjet image on a process side of the print substrate, the print substrate being arranged on a print area of the print surface, the process side being opposite to the contact side.
    Type: Grant
    Filed: November 20, 2015
    Date of Patent: May 16, 2017
    Assignee: OCE-TECHNOLOGIES B.V.
    Inventors: Lodewijk T. Holtman, Henricus A. M. Janssen
  • Patent number: 9597889
    Abstract: A liquid heating apparatus for heating a liquid that is supplied to a liquid droplet ejection head is provided. The liquid heating apparatus includes a liquid chamber unit configured to be disposed on the supply route of the liquid and to temporarily store the liquid, and a temperature-adjusting flow path unit configured to heat the liquid supplied from the liquid chamber unit.
    Type: Grant
    Filed: February 11, 2016
    Date of Patent: March 21, 2017
    Assignee: RICOH COMPANY, LTD.
    Inventors: Takeshi Shimizu, Tsuneo Maki
  • Patent number: 9498967
    Abstract: A cartridge for holding ink pellets is provided. The cartridge comprises a first part and a second part. The first part comprises a first body, which first body comprises an exit adapted for releasing an ink pellet from the cartridge, and the first part comprising a separating unit, said separating unit being adapted for separating and releasing a single ink pellet and transporting said single ink pellet to said exit. The second part is configured for holding said ink pellets and comprises a second body being adapted for a sliding movement with respect to said first part in order to adjust a volume of the cartridge. The cartridge of the present invention improves transportation of said cartridge without reducing a capacity of the cartridge for holding a plurality of ink pellets.
    Type: Grant
    Filed: March 17, 2016
    Date of Patent: November 22, 2016
    Assignee: OCE-TECHNOLOGIES B.V.
    Inventors: Mark A. M. Leenen, Willemijn Elkhuizen, Kay Van 'T Hof
  • Patent number: 9352598
    Abstract: A printer including an optical moving amount calculator, an angle calculator, and a moving amount corrector is provided. The optical moving amount calculator calculates a moving amount of the printer or an object to be irradiated after a movement thereof, based on a difference in image data generated before and after the movement. The image data is generated by emitting light to the print medium or the object and receiving light reflected therefrom. The angle calculator calculates a deviation angle of an installation angle of the optical moving amount calculator installed in the printer, based on a calibration moving amount of the printer or the object after a calibration movement thereof that is a parallel translation. The moving amount corrector corrects the moving amount of the printer after the movement thereof, based on the calculated deviation angle of the optical moving amount calculator.
    Type: Grant
    Filed: September 8, 2015
    Date of Patent: May 31, 2016
    Assignee: RICOH COMPANY, LTD.
    Inventors: Tetsuyoshi Nakata, Yasunari Harada, Jun Watanabe, Tomoko Fukasawa, Ryuuichi Satoh, Hiroki Tanaka, Toshiaki Hosokawa
  • Patent number: 9333760
    Abstract: The present disclosure provides apparatus and method for supplying uninterrupted flow of solid-ink pellets to an image-forming device. The apparatus includes a container for retaining solid-ink pellets, and a selectably-inflatable bladder disposed within the container. Further, the apparatus includes a tube communicating the bladder with a pressure supply.
    Type: Grant
    Filed: April 5, 2014
    Date of Patent: May 10, 2016
    Assignee: XEROX CORPORATION
    Inventors: Michael Q Lu, Robert B Anderson, John R Uchal, D. Clay Johnson, Eliud Robles Flores
  • Patent number: 9272525
    Abstract: Protrusions are positioned on the inner surfaces of a channel within a printhead body or member to control the size and location of bubble formation. An inkjet printhead includes a member having a first opening and a second opening to enable melted ink to enter the channel at the first opening and flow through the channel to the second opening. At least one protrusion extends from the member into the channel to position a portion of the protrusion into melted ink in the channel to form a dominant stress concentration in the melted ink.
    Type: Grant
    Filed: September 11, 2013
    Date of Patent: March 1, 2016
    Assignee: Xerox Corporation
    Inventors: Jeremiah D. Zimmerman, Jonathan R. Brick
  • Patent number: 9254674
    Abstract: The techniques described are applied for trapping particles within a partially enclosed region of a reservoir of a printer head using thermal gradients and buoyant flows within the ink contained in the reservoir. One disclosed embodiment includes a reservoir for an ink jet printer that has a plurality of walls and a cavity. The plurality of walls include at least a first wall and a second wall. During operation, the first wall is provided with a temperature differential with respect to the second wall. The cavity is formed by the plurality of walls and operationally retains an ink of the ink jet printer. The cavity has a partially enclosed region that communicates with a remainder of the cavity. The partially enclosed region is adapted to retain particles that have separated from the ink.
    Type: Grant
    Filed: February 25, 2014
    Date of Patent: February 9, 2016
    Assignee: PALO ALTO RESEARCH CENTER INCORPORATED
    Inventor: Victor Beck
  • Patent number: 9216588
    Abstract: A functional amine release agent displaying reduced coefficient of friction as compared to standard silicone oils, the release agent comprising a polydimethylsiloxane oil and a functional amine selected from the group consisting of pendant propylamines and pendant N-(2-aminoethyl)-3-aminopropyl; wherein the concentration of functional amine to polydimethylsiloxane oil is approximately less than 0.0006 meq/g. According to certain embodiments, the functional amine release agent is operable to impart a coefficient of friction of about 0.3 or more to the print media, resulting in improved finishing and converting equipment interaction.
    Type: Grant
    Filed: July 30, 2015
    Date of Patent: December 22, 2015
    Assignee: Xeroc Corporation
    Inventors: Jason M. LeFevre, Paul J. McConville, Santokh S. Badesha, James M. Chappell, David A. VanKouwenberg, Anthony S. Condello, Daniel J. McVeigh
  • Patent number: 9193883
    Abstract: A phase change ink composition including an amorphous compound; a crystalline compound; a polyester polymer, wherein the polyester has a molecular weight of from about 500 to about 8,000 and a polydispersity index of from about 1.0 to about 8.0; an optional synergist; an optional dispersant; and a colorant. A process including (1) incorporating into an ink jet printing apparatus the phase change ink composition; (2) melting the ink; and (3) causing droplets of the melted ink to be ejected in an imagewise pattern onto a substrate. An ink jet printer stick or pellet including the phase change ink composition.
    Type: Grant
    Filed: June 18, 2013
    Date of Patent: November 24, 2015
    Assignee: Xerox Corporation
    Inventors: Barkev Keoshkerian, Valerie M. Farrugia, Jenny Eliyahu, Gordon Sisler, Biby Esther Abraham, Stephan V. Drappel
  • Patent number: 9133351
    Abstract: The present disclosure is drawn to an inks, printed articles, and related methods. In one example, the a neutral gray reflective ink can include an aqueous liquid vehicle, iron oxide reflective particles having an average particle size from 3 nm to 180 nm dispersed in the aqueous liquid vehicle, and a dye system solvated in the aqueous liquid vehicle. The iron oxide particles and the dye system are present at relative concentrations to provide a reflective ink that is neutral gray.
    Type: Grant
    Filed: December 19, 2012
    Date of Patent: September 15, 2015
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Vladek Kasperchik, Vladimir Jakubek
  • Patent number: 9085137
    Abstract: An inkjet printer is configured to reduce the settling of magnetic particles in magnetic ink. The inkjet printer is configured to eject magnetic ink and black ink in areas where the corresponding image data only has black ink pixels. The printing of the magnetic ink in the black ink areas helps prevent the magnetic particles in the magnetic ink from settling.
    Type: Grant
    Filed: September 5, 2012
    Date of Patent: July 21, 2015
    Assignee: Xerox Corporation
    Inventors: Paul S. Bonino, Timothy P. Foley
  • Patent number: 9073333
    Abstract: A pressure regulation system for a high throughput inkjet printer uses a peristaltic pump to provide a meniscus vacuum to the printheads. A peristaltic pump is a small and inexpensive device which can produce a low flow rate suitable for achieving the relatively small meniscus vacuum required by drop on demand systems. Furthermore the pump can operate in both directions, and seals in the event of power loss.
    Type: Grant
    Filed: June 26, 2012
    Date of Patent: July 7, 2015
    Assignee: Inca Digital Printers Limited
    Inventor: Nicholas John Campbell
  • Publication number: 20150124029
    Abstract: Image formation device having: an image formation drum (50) for rotationally conveying a recording medium while holding the recording medium; a supply means (22) for supplying the recording medium (P) to the drum; a recording head (71) for forming an image on the recording medium on the drum; and a conveyance mechanism (80) for receiving the recording medium from the drum at a reception position (m2) on the downstream side in a conveyance direction from the recording head and distributing the recording medium to a paper discharge path or an inversion path. The conveyance mechanism returns the recording medium to the drum at a return position (m9) on the downstream side in the conveyance direction from the reception position (m2) after the front and back surfaces thereof are inverted, and a drum heating means (94) for heating the surface drum is provided between the reception position and the return position.
    Type: Application
    Filed: April 30, 2013
    Publication date: May 7, 2015
    Applicants: KONICA MINOLTA, INC., KOMORI CORPORATION
    Inventors: Toyoaki Sugaya, Mitsuru Obata, Hiroyuki Suda, Satoshi Murakami
  • Publication number: 20150124030
    Abstract: The invention relates to a hot melt ink composition, the hot melt ink composition being solid at room temperature and in a liquid state at an elevated temperature, comprising a binder, a colorant, a crystalline material, and a crystallization retardant, wherein the crystalline material is a di-substituted compound and the crystallization retardant is a mono-substituted derivative of the crystalline material. The invention further relates to a method for preparing such hot melt compositions and to use of a hot melt ink composition.
    Type: Application
    Filed: January 13, 2015
    Publication date: May 7, 2015
    Applicant: OCE-TECHNOLOGIES B.V.
    Inventors: Dannis W.H. BEEK, Leonardus F.H. ROODBEEN, Tieme A. VAN DEN BERG
  • Patent number: 8980406
    Abstract: In one aspect, inks for use with a 3D printer are described herein. In some embodiments, an ink comprises a polymerizable material and a reactive wax comprising a saturated alkyl moiety bonded to an ethyleneically unsaturated moiety through a urethane, urea, ester, or carbonate ester linkage, wherein the ink is free or substantially free of non-reactive wax.
    Type: Grant
    Filed: August 28, 2012
    Date of Patent: March 17, 2015
    Assignee: 3D Systems, Inc.
    Inventor: Pingyong Xu
  • Publication number: 20150070448
    Abstract: Protrusions are positioned on the inner surfaces of a channel within a printhead body or member to control the size and location of bubble formation. An inkjet printhead includes a member having a first opening and a second opening to enable melted ink to enter the channel at the first opening and flow through the channel to the second opening. At least one protrusion extends from the member into the channel to position a portion of the protrusion into melted ink in the channel to form a dominant stress concentration in the melted ink.
    Type: Application
    Filed: September 11, 2013
    Publication date: March 12, 2015
    Applicant: Xerox Corporation
    Inventors: Jeremiah D. Zimmerman, Jonathan R. Brick
  • Patent number: 8974045
    Abstract: Among other things, ink is jetted onto a substrate, the ink includes (a) a pigment and (b) a wax, and the jetted ink on the substrate is heated to fire the pigment on the substrate.
    Type: Grant
    Filed: April 13, 2011
    Date of Patent: March 10, 2015
    Assignee: FUJIFILM Dimatix, Inc.
    Inventor: Howard T. Baldwin
  • Patent number: 8974047
    Abstract: A phase change ink composition including an ink vehicle; an optional colorant; and ethylene vinyl acetate in an amount of from about 0.1 to about 10 percent by weight based on the total weight of the phase change ink composition.
    Type: Grant
    Filed: November 27, 2012
    Date of Patent: March 10, 2015
    Assignee: Xerox Corporation
    Inventors: Salma Falah Toosi, Mihaela Maria Birau, Biby Esther Abraham, Stephan V. Drappel, James D. Mayo, Peter G. Odell, Jeffrey H. Banning, Caroline Turek
  • Publication number: 20150035901
    Abstract: In order to perform recording head maintenance by discharge and reflux of ink with higher pressures without creating instability of the meniscus in the nozzle surface, this image forming device may be provided with a recording head having multiple nozzles, a first reservoir unit and a second reservoir unit which store the ink supplied to the recording head, a supply unit which is opened and closed by a solenoid valve and connects the recording head and the first reservoir unit, a pump which supplies the ink in the second reservoir unit to the first reservoir unit, a recovery passage which is opened and closed by solenoid valves and connects the recording head and the second reservoir unit, and a control unit which controls operation of the solenoid valves and the pump.
    Type: Application
    Filed: March 5, 2013
    Publication date: February 5, 2015
    Applicant: Konica Minolta, Inc
    Inventor: Mitsuru Obata
  • Publication number: 20140368588
    Abstract: A phase change ink composition including an amorphous compound; a crystalline compound; a polyester polymer, wherein the polyester has a molecular weight of from about 500 to about 8,000 and a polydispersity index of from about 1.0 to about 8.0; an optional synergist; an optional dispersant; and a colorant. A process including (1) incorporating into an ink jet printing apparatus the phase change ink composition; (2) melting the ink; and (3) causing droplets of the melted ink to be ejected in an imagewise pattern onto a substrate. An ink jet printer stick or pellet including the phase change ink composition.
    Type: Application
    Filed: June 18, 2013
    Publication date: December 18, 2014
    Inventors: Barkev Keoshkerian, Valerie M. Farrugia, Jenny Eliyahu, Gordon Sisler, Biby Esther Abraham, Stephan V. Drappel
  • Patent number: 8905535
    Abstract: A main frame supports a printer head. A first movable frame supports a platen and a first paper feeding roller, and is pivotally connected to one end of the main frame via a first pivot shaft to permit itself to be opened or closed relative to the main frame. A second movable frame supports a second paper feeding roller, and is pivotally connected to the other end of the main frame via a second pivot shaft to permit itself to be opened or closed relative to the main frame. When the first movable frame and the second movable frame are closed relative to the main frame, the printer head is opposite to the platen to form a printing position; and the first paper feeding roller is tangent to the second paper feeding roller.
    Type: Grant
    Filed: January 22, 2009
    Date of Patent: December 9, 2014
    Assignee: Shandong New Beiyang Information Technology Co., Ltd.
    Inventors: Lei Zheng, Jigang Zhang, Qiangzi Cong, Tianxin Jiang, Min Yang
  • Patent number: 8888259
    Abstract: A melting device melts solid ink into liquid ink by passing alternating current through an electrical conductor arranged in coils around a housing. The liquid ink passes from a reservoir, through a spool valve arrangement, and into first and second chambers. The spool valve arrangement only allows liquid ink into one chamber at a time. While the first chamber is being filled, pressure is applied to the second chamber. The pressure applied to the second chamber forces the liquid ink in the second chamber through a filter and an outlet. When the first chamber is filled to a predetermined level, pressure is no longer applied to the second chamber and is applied to the first chamber. The pressure applied to the first chamber moves the spool valve arrangement to block the first chamber. While pressure is applied to the first chamber, the second chamber is filled with liquid ink.
    Type: Grant
    Filed: March 22, 2013
    Date of Patent: November 18, 2014
    Assignee: Xerox Corporation
    Inventors: Mark A. Atwood, Timothy P. Foley, Douglas Allen Gutberlet, Frank Berkelys Tamarez Gomez
  • Patent number: 8882257
    Abstract: A light emitting device includes a substrate, a light emitting body, a thermally conductive member, and a heat radiation member. The substrate has a first face and a second face which is a face opposite to the first face. The light emitting body is held on a side of the first face of the substrate and emits light. The thermally conductive member is provided so as to be in contact with the second face of the substrate and contains a high thermal conductive material. The heat radiation member is provided so as to be in contact with the thermally conductive member and radiates heat conducted from the substrate through the thermally conductive member.
    Type: Grant
    Filed: June 15, 2012
    Date of Patent: November 11, 2014
    Assignee: Seiko Epson Corporation
    Inventors: Takashi Oyanagi, Keitaro Nakano
  • Patent number: 8882236
    Abstract: A method of solid ink printer operation compensates for missing black ink in solid fill areas. The method includes ejecting at least one other color of ink into a black solid fill area at a predetermined distance to the area missing the black ink. The additional non-black ink urges black ink between the non-black ink and the area missing the black ink to migrate into the area in which the black ink is missing.
    Type: Grant
    Filed: May 31, 2013
    Date of Patent: November 11, 2014
    Assignee: Xerox Corporation
    Inventor: Stephen M. Kroon
  • Publication number: 20140327723
    Abstract: The present disclosure provides systems and methods for supplying solid-ink pellets from a container to an image-forming device. The system includes a delivery tube within the container, with one or more openings to receive solid-ink pellets from the container. An agitating structure coupled to the delivery tube disturbs the solid ink pellets. The movement of the delivery tube moves the agitating structure, resulting in disturbing the solid-ink pellets and maintaining flowability of the pellets to the image-forming device.
    Type: Application
    Filed: May 5, 2013
    Publication date: November 6, 2014
    Inventors: ROGER LEIGHTON, David Lomenzo, Patrick Walker, Michael Brundige, William H. Wayman
  • Patent number: 8876265
    Abstract: A solid ink stick transport system has been developed that differentiates between ink sticks inserted into a single insertion port of an inkjet printer. The system includes a solid ink support platform that moves between a position exposed outside of a printer housing to receive solid ink sticks and a position within the housing. The support includes a sensor that enables a controller to identify the solid ink stick before transporting the solid ink stick to an appropriate feed channel.
    Type: Grant
    Filed: June 28, 2012
    Date of Patent: November 4, 2014
    Assignee: Xerox Corporation
    Inventors: Isaac S. Frazier, Brent R. Jones
  • Patent number: 8870353
    Abstract: A liquid ejecting head includes a pressure generation chamber which fluidly communicates with a nozzle opening through which liquid is discharged, a pressure generation unit which causes pressure change on liquid in the pressure generation chamber, a manifold which serves as a liquid chamber common to a plurality of the pressure generation chambers, a flexible film which is configured to cover the manifold so as to absorb a pressure change generated in the manifold, and a heat generation unit which is formed on the flexible film at a region opposed to the manifold and is made of a pattered metal.
    Type: Grant
    Filed: March 29, 2011
    Date of Patent: October 28, 2014
    Assignee: Seiko Epson Corporation
    Inventor: Shunsuke Watanabe
  • Patent number: 8864275
    Abstract: A printing apparatus includes a printhead module having an ink leakage detector to detect a leaked phase change ink. The ink leakage detector includes a plurality of resistance temperature detectors or resistive thermal devices to detect the leaked phase change ink. A horizontally mounted overdriven thermistor can also be used to detect leaked ink.
    Type: Grant
    Filed: December 14, 2011
    Date of Patent: October 21, 2014
    Assignee: Xerox Corporation
    Inventors: Glenn D. Batchelor, Chad E. LaBarge, Ali R. Dergham, Randall E. Kaufman
  • Patent number: 8864293
    Abstract: A phase change inkjet printer including a heated phase change ink reservoir configured to reduce or prevent improper jetting of ink from a printhead. The reservoir includes a vent to atmosphere to provide substantially consistent and accurate jetting of the heated ink. A selective barrier, such as a filter, disposed adjacent to the vent substantially prevents ink from entering the vent while still enabling the vent to direct a pressure into the reservoir during printing and during purging.
    Type: Grant
    Filed: September 12, 2012
    Date of Patent: October 21, 2014
    Assignee: Xerox Corporation
    Inventors: David Paul Platt, David L. Knierim, Tesfalem Zewdneh
  • Patent number: 8864294
    Abstract: The present disclosure provides systems and methods for supplying solid-ink pellets from a container to an image-forming device. The system includes a delivery tube within the container, with one or more openings to receive solid-ink pellets from the container. An agitating structure coupled to the delivery tube disturbs the solid ink pellets. The movement of the delivery tube moves the agitating structure, resulting in disturbing the solid-ink pellets and maintaining flowability of the pellets to the image-forming device.
    Type: Grant
    Filed: May 5, 2013
    Date of Patent: October 21, 2014
    Assignee: Xerox Corp.
    Inventors: Roger Leighton, David Lomenzo, Patrick Walker, Michael Brundige, William H. Wayman
  • Patent number: 8851648
    Abstract: Exemplary embodiments provide a phase change ink composition including at least a first semi-crystalline material having a high amorphous content; and at least a second semi-crystalline material having a high crystalline content, such that the phase change ink has a viscosity ranging from about 0.1 cps to about 15 cps at a temperature ranging from about 60° C. to about 145° C. and the phase change ink composition has excellent robustness when forming images or printing on a printing substrate.
    Type: Grant
    Filed: September 18, 2012
    Date of Patent: October 7, 2014
    Assignee: Xerox Corporation
    Inventors: Stephan V. Drappel, Jeffrey H. Banning, Peter G. Odell, Paul J. McConville, Jennifer Rea
  • Publication number: 20140285594
    Abstract: A phase change ink composition is disclosed. The composition comprises a crystalline component including a diamide compound with an aromatic ring core; an amorphous component; and optionally a colorant. Methods of printing the phase change ink composition are also disclosed.
    Type: Application
    Filed: March 21, 2013
    Publication date: September 25, 2014
    Applicant: XEROX CORPORATION
    Inventors: Kentaro Morimitsu, Jennifer L. Belelie, Naveen Chopra, Adela Goredema, Gabriel Iftime
  • Publication number: 20140285595
    Abstract: A melting device melts solid ink into liquid ink by passing alternating current through an electrical conductor arranged in coils around a housing. The liquid ink passes from a reservoir, through a spool valve arrangement, and into first and second chambers. The spool valve arrangement only allows liquid ink into one chamber at a time. While the first chamber is being filled, pressure is applied to the second chamber. The pressure applied to the second chamber forces the liquid ink in the second chamber through a filter and an outlet. When the first chamber is filled to a predetermined level, pressure is no longer applied to the second chamber and is applied to the first chamber. The pressure applied to the first chamber moves the spool valve arrangement to block the first chamber. While pressure is applied to the first chamber, the second chamber is filled with liquid ink.
    Type: Application
    Filed: March 22, 2013
    Publication date: September 25, 2014
    Applicant: Xerox Corporation
    Inventors: Mark A. Atwood, Timothy P. Foley, Douglas Allen Gutberlet, Frank Berkelys Tamarez Gomez
  • Patent number: 8827410
    Abstract: A method of cleaning a heated drum within a continuous web printer includes operating an actuator to rotate a drum that is heated to a first temperature. The drum rotates in a process direction of a media web contacting the drum and heats the media web as the media web moves over a portion of the drum. The method also includes stopping movement of the media web, heating the drum to a second temperature that is greater than the first temperature, and operating the actuator to rotate the drum against a portion of the stopped media web to transfer ink from the drum to the portion of the stopped media web.
    Type: Grant
    Filed: May 4, 2012
    Date of Patent: September 9, 2014
    Assignee: Xerox Corporation
    Inventors: Joseph C. Sheflin, Michael J. Levy, Jason M. LeFevre
  • Patent number: 8814336
    Abstract: A solid ink stick configuration efficiently provides functional features for use of the ink stick in a phase change ink printer without adversely impacting the volumetric content of the ink stick and its appearance.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: August 26, 2014
    Assignee: Xerox Corporation
    Inventors: Brent R. Jones, Frederick T. Mattern
  • Patent number: 8801157
    Abstract: A liquid ink transport assembly mitigates the migration of ink dye from one conduit in a plurality of conduits to another conduit in the plurality of conduits. The liquid ink transport assembly includes a plurality of conduits, each conduit in the plurality having a first end and a second end, the conduits in the plurality being arranged in a parallel configuration with at least one conduit being spatially separated from an adjacent conduit by a first distance that is greater than a second distance spatially separating other conduits in the plurality of conduits, and a heater, the plurality of conduits being positioned proximate to a first side of the heater to enable the heater to heat ink being carried between the first and the second ends of the plurality of conduits.
    Type: Grant
    Filed: April 16, 2013
    Date of Patent: August 12, 2014
    Assignee: Xerox Corporation
    Inventors: Chad David Freitag, Pratima G. N. Rao, Patricia A. Wang, Tony R. Rogers, Bhaskar T. Ramakrishnan
  • Patent number: 8783839
    Abstract: An apparatus and method disclosed for delivering solid-ink pellets in an image-forming device comprises a hopper that houses solid-ink pellets. The hopper defines a vent and is provided with a mechanism to regulate the passage of the solid-ink pellets through the vent. A restrainer member configured to receive the solid-ink pellets defines a restrainer surface and a spreading arrangement to evenly spread the solid-ink pellets on its surface. Positioned below the vent, the restrainer retains the solid-ink pellets and is configured to transmit heat to solid-ink pellets causing them to melt evenly.
    Type: Grant
    Filed: December 12, 2011
    Date of Patent: July 22, 2014
    Assignee: Xerox Corp.
    Inventors: Srinivasa R. Deshiikan, Julie Mulley
  • Patent number: 8777386
    Abstract: A solid ink stick enables identification of the ink stick in a variety of different orientations, while preventing the ink stick from being inserted into an ink loader in an orientation in which the ink stick cannot be identified. The ink stick includes two polygon end surfaces opposite one another. Each edge of the end surfaces has a first and a second identifier, which are identical to one another to enable the ink stick to be inserted into an ink loader without regard to the orientation of the edges.
    Type: Grant
    Filed: October 17, 2012
    Date of Patent: July 15, 2014
    Assignee: Xerox Corporation
    Inventors: Brent R. Jones, Frederick T. Mattern, Brian W. Aznoe
  • Patent number: 8770732
    Abstract: A container for storing phase-change ink includes a housing that is comprised primarily of a thermally insulating material and an inductive heater element positioned within the housing. The inductive heater element is formed in a manner that increases the surface area of the heater and enables frozen ink in the vicinity of a reservoir outlet to melt quickly to enable printing operations.
    Type: Grant
    Filed: December 8, 2010
    Date of Patent: July 8, 2014
    Assignee: Xerox Corporation
    Inventors: Brent Rodney Jones, Edward Francis Burress
  • Patent number: 8764175
    Abstract: A variable resistive heater element enables current to flow through a first resistive heater element and a second resistive heater element based on the temperature of the variable resistive heater element. Current flows through the first resistive heater element, and is restricted through the second resistive heater element, when the variable resistive heater element is less than a predetermined temperature. Current flows through the first and second resistive heater elements when the variable resistive heater element is at or greater than a predetermined temperature.
    Type: Grant
    Filed: July 27, 2012
    Date of Patent: July 1, 2014
    Assignee: Xerox Corporation
    Inventors: Brian W. Aznoe, James B. Campbell