Responsive To Condition Patents (Class 347/23)
  • Patent number: 8684488
    Abstract: A liquid ejecting device is provided. The liquid ejecting device includes a conveyer, liquid ejecting heads with nozzles to eject droplets of liquid, an liquid purging unit to purge the liquid out of the nozzles, a detector unit to detect presence of a recording medium, a storage unit to store length of the recording medium, a judging unit to judge whether the recording medium is jammed in a conveyer path, a head identifier unit to identify an overlapping liquid ejecting head assumedly facing the jammed recording medium based on the detected result obtained by the detector unit and the length of the recording medium, and an purge controller unit to control an amount of the liquid to be ejected from the nozzles in the remaining liquid ejecting heads to be smaller than an amount of the liquid to be ejected from the nozzles in the identified overlapping liquid ejecting head.
    Type: Grant
    Filed: September 28, 2011
    Date of Patent: April 1, 2014
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Tadao Kyotani
  • Patent number: 8672443
    Abstract: A liquid ejection apparatus including: a liquid-ejection head having ejection openings to eject liquid to record an image on a recording medium; a sealing mechanism configured to selectively establish a sealed state and an unsealed state; a humid-air supply mechanism which supplies a humid air into the ejection space; and a controller, wherein, during the sealed state of the ejection space, the controller controls the humid-air supply mechanism to supply the humid air into the ejection space such that one of a density and a viscosity of the liquid to be ejected from the ejection openings becomes less than a predetermined appropriate value, and then controls the liquid-ejection head such that the liquid having an amount equal to or larger than a set amount is preliminarily ejected prior to the ejection of the liquid onto the recording medium for recording the image on the recording medium, is disclosed.
    Type: Grant
    Filed: September 30, 2011
    Date of Patent: March 18, 2014
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Tomoaki Hazeyama
  • Patent number: 8668293
    Abstract: A liquid ejecting apparatus that ejects liquid from an ejecting nozzle provided in an ejecting head includes a first container that contains a first liquid and a second container that contains a second liquid. The liquid ejecting apparatus includes a channel that selectively communicates with either the first or second container to supply the liquid contained therein to the ejecting head, a switching unit that performs a switching operation of switching between a first communicating state in which the channel communicates with the first container and a second communicating state in which the channel communicates with the second container. In addition, if the remaining amount of the second liquid contained in the second container is less than a predetermined value, prohibits the switching unit from performing the switching operation of switching from the second communicating state to the first communicating state.
    Type: Grant
    Filed: October 19, 2010
    Date of Patent: March 11, 2014
    Assignee: Seiko Epson Corporation
    Inventor: Koji Harada
  • Patent number: 8662621
    Abstract: A droplet jetting applicator includes a droplet jet head being movably provided, having a nozzle surface provided with multiple nozzles, and being configured to jet a liquid from the multiple nozzles as droplets, a cleaner configured to clean the nozzle surface, an image shooting unit configured to shoot shapes of the droplets jetted from the droplet jet head, and a controller configured to control the droplet jet head, the cleaner, and the image shooting unit and to detect the shapes of the droplets shot by the image shooting unit.
    Type: Grant
    Filed: July 10, 2009
    Date of Patent: March 4, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Yasuhiko Sawada
  • Patent number: 8662630
    Abstract: A recording apparatus including: a liquid ejection head which has an ejection surface; a conveying mechanism having a support surface, and configured to convey a recording medium; a first capping mechanism having an annular-shaped lip member disposed to surround the ejection surface of the liquid ejection head, and configured to execute a first capping that causes the ejection surface to be covered with the support surface and the lip member; a second capping mechanism having a movable member which is positionable in an opposed position and a retracted position, and configured to execute a second capping that causes the ejection surface to be covered with at least the one movable member that is positioned in the opposed position; and a controller configured to control the first capping mechanism and the second capping mechanism, and to execute a selected one of the first capping and the second capping.
    Type: Grant
    Filed: October 28, 2011
    Date of Patent: March 4, 2014
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Yutaka Kakigahara
  • Patent number: 8662629
    Abstract: A liquid ejection apparatus including: a first casing; a second casing; and a controller, wherein the first casing is movable between a close position close to the second casing and a distant position farther from the second casing than the close position, the first casing accommodating a head having an ejection face. The second casing accommodates: a support portion having a support face for supporting a recording medium while facing the ejection face; and a moving device configured to move the support portion, such that the support face selectively takes a first state to face the ejection face and a second state not to face the ejection face. A restraining portion restrains movement of the first casing located at the close position, and the controller controls the moving device, such that the support face takes the second state when the controller has received a restraint releasing signal.
    Type: Grant
    Filed: October 28, 2011
    Date of Patent: March 4, 2014
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Shinya Yamamoto
  • Patent number: 8651618
    Abstract: A liquid ejection apparatus, including: a head having ejection openings and configured to eject liquid through the ejection openings; a sealing mechanism configured to selectively establish a sealing state in which the sealing mechanism seals an ejection space in which the ejection openings are open, from an outside and an unsealing state in which the sealing mechanism does not seal the ejection space from the outside; and a humid-air supply mechanism configured to supply a humid air into the ejection space when the sealing mechanism is in the sealing state; wherein a controller is configured to control the humid-air supply mechanism such that an amount of the humid air to be supplied into the ejection space from the humid-air supply mechanism when the sealing mechanism is in the sealing state increases with a longer length of time of the unsealing state just before the current sealing state.
    Type: Grant
    Filed: January 30, 2012
    Date of Patent: February 18, 2014
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Shuichi Tamaki, Hiroshi Taira
  • Patent number: 8628168
    Abstract: An image forming apparatus includes an ejection device, a suction device, and a controller. The ejection device has a first nozzle and a second nozzle to eject a first liquid and a second liquid, respectively. The first liquid contains pigment particles dispersed in a dispersion medium and the second liquid contains a color material. In a first image formation mode for ejecting the second liquid from the second nozzle without ejecting the first liquid from the first nozzle, the controller controls the suction device so as not to suction the first liquid for recovery operation. When the first image formation mode is switched to a second image formation mode for ejecting at least the first liquid from the first nozzle, the controller controls the suction device so as to suction a predetermined amount of the first liquid determined based on solidification of the first liquid to perform the recovery operation.
    Type: Grant
    Filed: June 28, 2011
    Date of Patent: January 14, 2014
    Assignee: Ricoh Company, Ltd.
    Inventor: Masanori Igarashi
  • Publication number: 20140009529
    Abstract: An ejection complement process is performed during which both a usual ejection failure and a sudden ejection failure can be appropriately coped with, without being accompanied by a frequent maintenance process. In a case wherein sequential printing is not currently being performed, the first detection process is performed with a high accuracy while being accompanied by the maintenance process, and in a case wherein sequential printing is currently being performed, the second detection process that requires only a small process load is performed at a predetermined timing without being accompanied by the maintenance processing. At this time, when the number of ejection failed nozzles detected in the second ejection process has reached a predetermined value or greater, the maintenance process is performed, and only the information for the ejection failed nozzle, detected in the second detection process, is reset.
    Type: Application
    Filed: July 1, 2013
    Publication date: January 9, 2014
    Inventors: Minoru Teshigawara, Yoshiaki Murayama, Susumu Hirosawa, Takatoshi Nakano, Takuya Fukasawa
  • Patent number: 8622507
    Abstract: A control method for a fluid ejection device and a fluid ejection device reliably eliminate dropped dots while reducing consumption of ink droplets ejected from the nozzles. A fluid ejection device that performs at least one of a cleaning operation that suctions fluid from the nozzles and a wiping operation that wipes the nozzle surface when dropped dots occur determines if an elimination history of removing dropped dots by the wiping operation is stored when dropped dots are detected as a result of testing for dropped dots and determining if dropped dots occur. When a history of eliminating dropped dots by means of a wiping operation is not stored, the fluid ejection device performs the wiping operation. When a history of eliminating dropped dots by means of a wiping operation remains in memory, the cleaning operation is performed without the wiping operation.
    Type: Grant
    Filed: March 24, 2011
    Date of Patent: January 7, 2014
    Assignee: Seiko Epson Corporation
    Inventor: Satoshi Inomata
  • Patent number: 8622500
    Abstract: A recording device forming a printed image by discharging droplets of an image forming solution from a nozzle and attaching the droplets on recording media, which includes a recording head provided with a specific nozzle which is selectively filled with the image forming solution and a solution preventing the nozzle from being clogged, and a controller that controls the performance of switching from a first filled state in which the specific nozzle is filled with the image forming solution to a second filled state in which the specific nozzle is filled with the solution preventing the nozzle from clogging in accordance with a predetermined condition.
    Type: Grant
    Filed: July 24, 2009
    Date of Patent: January 7, 2014
    Assignee: Seiko Epson Corporation
    Inventors: Takayoshi Kagata, Tsuyoshi Sano
  • Patent number: 8616672
    Abstract: A recording apparatus includes: a recording head; a temperature detection unit; a first heating element configured to maintain a temperature of the recording head and a second heating element configured to discharge the ink; an acquisition unit configured to acquire at a plurality of predetermined intervals the temperature detected by the temperature detection unit; a first averaging unit configured to obtain an average temperature based on the temperatures acquired by the acquisition unit in a first period; a first drive unit configured to drive the first heating element based on the average temperature obtained by the first averaging unit; a second averaging unit configured to obtain an average temperature based on the temperatures acquired by the acquisition unit in a second period and longer than the first period; and a second drive unit configured to drive the second heating element based on the average temperature obtained by the second averaging unit.
    Type: Grant
    Filed: April 20, 2011
    Date of Patent: December 31, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventor: Shingo Tatsumi
  • Patent number: 8613492
    Abstract: In an inkjet apparatus using an inkjet head ejecting multiple types of inks different in viscosity after evaporation of solvent, a replacement timing for a component is judged by using a consumption amount of each type of ink and a generation rate in amount of ink droplets. Accordingly, in the case of using a large amount of ink strongly susceptible to fixed adhesion and increase in viscosity, the component is replaced at an earlier timing, which prevents fixed adhesion from influencing the print performance and the printing apparatus main body. By contrast, in the case of using a large amount of ink less susceptible to fixed adhesion and increase in viscosity, the component is replaced at a later timing and thus can be used until reaching its lifetime.
    Type: Grant
    Filed: June 15, 2011
    Date of Patent: December 24, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kazuo Suzuki, Yutaka Kawamata, Toshimitsu Danzuka, Masataka Kato, Asako Tomida, Jumpei Jogo, Hiroaki Komatsu
  • Publication number: 20130328965
    Abstract: A liquid discharging apparatus, which discharges liquid from a nozzle of a liquid discharging head on the basis of data, includes a controller and a member. When the controller is in a standby state where the liquid is not discharged from the nozzle on the basis of the data or after the controller has received a power OFF instruction, the controller performs a drawing operation in which the liquid is drawn to a side opposite to a discharge direction in which the liquid is discharged so as to at least form a space at a distal end portion of the nozzle. After the controller has performed the drawing operation, the member covers an opening of the nozzle.
    Type: Application
    Filed: November 21, 2012
    Publication date: December 12, 2013
    Applicant: SEIKO EPSON CORPORATION
    Inventor: SEIKO EPSON CORPORATION
  • Patent number: 8596749
    Abstract: A liquid ejection apparatus including: a head having a face that has ejection openings through which liquid is ejected to record an image on a recording medium, an ejection space being defined so as to face the face; a humidification-liquid tank storing humidification liquid having a nonvolatile component; a sealing mechanism configured to selectively establish a sealing state in which the sealing mechanism seals the ejection space from an outside and an unsealing state in which the sealing mechanism does not seal the ejection space from the outside; and a humid-air supply mechanism configured to supply humid air into the ejection space when the sealing mechanism is in the sealing state, the humid air being an air humidified by the humidification liquid in the humidification-liquid tank, wherein the humidification-liquid tank is configured to be mountable on and removable from the humid-air supply mechanism.
    Type: Grant
    Filed: January 27, 2012
    Date of Patent: December 3, 2013
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Shuichi Tamaki, Akira Shinoda
  • Patent number: 8585169
    Abstract: A method and apparatus for subdividing and printing regions of a substrate with multiple print heads or multiple print head assemblies which substantially decreases printing time is described. The method includes a feathering method which reduces overlap artifacts which is useful in any printing situation where adjacent regions are printed that could be misaligned, offset, or have slightly different colors.
    Type: Grant
    Filed: February 23, 2012
    Date of Patent: November 19, 2013
    Inventor: S Dana Seccombe
  • Publication number: 20130293631
    Abstract: The invention has been made to prevent ink adhesion or an ink discharge failure caused by ink adhesion due to evaporation of volatile components of ink which occurs when the ink receptor of a printhead is exposed to air for a long time. If an inkjet printhead and an ink tank containing ink to be supplied to the printhead are attached to a carriage, the ink supply port of the ink tank is pressed to the ink receptor of the printhead. In this arrangement, the presence/absence of attachment of the ink tank to the carriage is detected. If it is detected that the ink tank is not attached to the carriage, a suction operation for the printhead is performed and controlled to suck out ink from the nozzles of the printhead.
    Type: Application
    Filed: April 17, 2013
    Publication date: November 7, 2013
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Yoshinori Nakagawa, Yuji Konno, Tomoki Yamamuro, Hideki Takayama
  • Patent number: 8556377
    Abstract: An image recording apparatus includes: a recording portion; a conveying member having a surface opposed to the recording portion and which conveys the recording medium in a conveying direction; a wiper having an end portion which is contactable with the surface of the conveying member and which removes a foreign matter on the surface of the conveying member; and a wiping operation executing portion which executes a wiping operation in which at least one of the wiper and the conveying member is driven such that, after the end portion of the wiper distant from the surface of the conveying member comes into contact with a clean area of the surface of the conveying member, the end portion of the wiper reaches outside of the clean area.
    Type: Grant
    Filed: March 30, 2011
    Date of Patent: October 15, 2013
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Kengo Takeda, Shigeki Kato, Naokatsu Osawa
  • Patent number: 8556399
    Abstract: A fluid interconnect for a fluid ejection system includes a fluid port having a fluid passage formed therethrough, and a filter provided at an end of the fluid port such that fluid passing through the fluid port passes through the filter to the fluid passage, wherein the filter is secured to an end surface and a peripheral surface of the fluid port.
    Type: Grant
    Filed: October 30, 2008
    Date of Patent: October 15, 2013
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Marjan S. Amesbury, Mark A. Smith
  • Patent number: 8556409
    Abstract: Printers and duplexers are described herein. An example duplexer for a printer includes a print substrate path to guide a print substrate and a chamber to collect a fluid.
    Type: Grant
    Filed: October 18, 2010
    Date of Patent: October 15, 2013
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Russell P Yearout, Daniel Fredrickson
  • Patent number: 8556368
    Abstract: A printing system that has a media transport system configured to transport media of differing dimensions along a media path, a printhead assembly for printing media transported along the media path, the media path having differing widths depending on the dimensions of the media and, a plurality of service modules for the printhead assembly. Each of the service modules is configured to operate in a plurality of different modes. During use, the media path extends between the printhead assembly and at least some of the service modules configured to operate in one of the modes while any of the service modules beyond the media path operate in another of the modes.
    Type: Grant
    Filed: July 29, 2010
    Date of Patent: October 15, 2013
    Assignee: Zamtec Ltd
    Inventors: Robert Rosati, David Petch, David Burney, Jim Sykora, Kenneth A Regas, Andy Bound, Neil Doherty, Scott Dennis, Ben Jones, Oksana Buyda, Locson Tonthat, Andrew Buyda, Patrick Kirk, Loren Hunt, Jason Dewey, Jim Trinchera, Bill Cressman, Ron Zech
  • Patent number: 8550585
    Abstract: Liquid ejecting apparatus having ink-jet head and pre-coating head from which ink for forming an image on recording medium and pre-coating liquid reacting with the ink are respectively ejected onto respective predetermined first and second areas of conveyor belt provided for feeding the recording medium, during maintenance operation, wherein the ejected ink and pre-coating liquid are removed from the first and second areas of the conveyor belt by respective blades of respective ink and liquid cleaning mechanisms, when the first and second areas of the conveyor belt are spaced apart from the blades of the respective liquid and ink cleaning mechanisms, whereby the ejected ink and pre-coating liquid do not mix and react with each other during the maintenance operation.
    Type: Grant
    Filed: March 8, 2011
    Date of Patent: October 8, 2013
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Taisuke Tsuchiya
  • Patent number: 8550590
    Abstract: An image recording apparatus including: a medium-convey mechanism; a recording head; an image sensor configured to perform an image-pickup operation for a recording medium; an image-pickup controlling section which controls the image sensor to perform the image-pickup operation; a liquid-ejection-failure recognizing section which recognizes presence and absence of a liquid ejection failure on the basis of a portion of image data obtained by the image-pickup operation, which portion corresponds to the image; a medium-position recognizing section which recognizes a position of the recording medium relative to the recording head, on the basis of a portion of the image data which includes data corresponding to an outline of the recording medium; a medium-position judging section which judges whether the position is normal or not; and a recording data correcting section which corrects, where the position is not normal, recording data such that an image to be recorded becomes proper.
    Type: Grant
    Filed: October 20, 2008
    Date of Patent: October 8, 2013
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Koji Ito
  • Patent number: 8542418
    Abstract: The systems and methods presented herein provide for calibrating a print engine of a printing system. The printing system prints image data on a print medium and scans the printed image data. Color values of the scanned image data are then measured and various tints of color values and their transition locations are identified. A calibration module estimates the original optical densities of the identified color value tints and generates a target optical density for each of the identified color value tints using the estimated original optical densities to determine print irregularities in the color values of the scanned image data. The calibration module then generates a halftone screen based on the mean optical densities and applies the generated halftone screen to the print engine to calibrate the print engine.
    Type: Grant
    Filed: August 25, 2010
    Date of Patent: September 24, 2013
    Assignee: Ricoh Production Print Solutions LLC
    Inventors: Kartheek Chandu, Larry M. Ernst, Sreenath R. Vantaram, Mikel J. Stanich
  • Patent number: 8526015
    Abstract: Sounding a buzzer a plurality of times can be controlled with few commands, the processor load is reduced when sounding the buzzer, and the buzzer can be sounded at the desired timing. A printer 1 having a buzzer 40 receives print data containing four types of data, a print configuration command A, a buzzer configuration command B, a printing control command C, and a stop printing command D, from a host device 2. The buzzer configuration command B is a command that sets the conditions and method of sounding the buzzer 40. The buzzer configuration command B sets the new page command C2 as the command that triggers sounding the buzzer 40 from among commands and data contained in the printing control command. When the control unit 10 of the printer 1 detects the new page command C2 while executing a print job, the control unit 10 causes the buzzer 40 to sound at the specified timing in the new page process.
    Type: Grant
    Filed: March 12, 2009
    Date of Patent: September 3, 2013
    Assignee: Seiko Epson Corporation
    Inventors: Masakazu Ono, Tomoyuki Oi
  • Patent number: 8523315
    Abstract: The liquid container has a first storage section in which ink to be supplied to an ink jet recording head is stored; a second storage section in which waste ink collected from the ink jet recording head is stored, and an information holding portion capable of recording information. The second storage section includes a waste ink absorption member which absorbs the waste ink. Moreover, in the information holding portion, information is recorded, the information including the total amount of the waste ink absorption by the ink absorption member, including an initial value of zero, the shortest time period X of continuous waste ink absorption, having a value which changes with the total amount of the waste ink absorption, and the previous collection time of the waste ink.
    Type: Grant
    Filed: August 22, 2007
    Date of Patent: September 3, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventor: Junji Shimoda
  • Patent number: 8517503
    Abstract: An object of the present invention is to appropriately dispense treatment fluid to wipers, and to always wipe ejection-orifice formation surfaces in a favorable state regardless of an environmental change and the like. To this end, in the present invention, a treatment-fluid holding portion holds treatment fluid used in a wiping operation of wipers. When the wipers contact the treatment-fluid holding portion, the treatment fluid is transferred to the wipers. In an environment where the treatment fluid is thickened, the wipers with ink dispensed thereto are brought into contact with the treatment-fluid holding portion to supply ink to the treatment-fluid holding portion. Thus, the viscosity of the treatment fluid near a contact portion between the treatment-fluid holding portion and the wipers decreases, and the treatment fluid is sufficiently transferred to the wipers.
    Type: Grant
    Filed: May 24, 2007
    Date of Patent: August 27, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yoshito Mizoguchi, Hiroshi Tajika, Yuji Konno, Hitoshi Nishikori, Daisaku Ide, Takeshi Yazawa, Satoshi Seki, Hirokazu Yoshikawa, Hideaki Takamiya, Fumiko Yano
  • Patent number: 8506044
    Abstract: An image recording apparatus including: a head; a conveying member having a support face and configured to convey a recording medium in a conveying direction; a first wiper extending in a direction intersecting the conveying direction; a second wiper extending at least in the conveying direction; a first-wiping driving portion configured to drive the first wiper and the conveying member to perform a first wiping operation; and a second-wiping driving portion configured to drive the second wiper and the conveying member to perform a second wiping operation; and a controller; wherein the controller controls the first-wiping driving portion and the second-wiping driving portion to perform a first cleaning operation including the first wiping operation and the second wiping operation; and wherein the controller controls the second-wiping driving portion such that the second wiper wipes foreign materials remaining on the support face when the first wiper is released from the support face in the first wiping operat
    Type: Grant
    Filed: March 30, 2011
    Date of Patent: August 13, 2013
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Kengo Takeda, Shigeki Kato
  • Patent number: 8506041
    Abstract: An ink jet recording apparatus is configured to use ink containing volatile components. A recording head has nozzles for discharging the ink and a temperature sensor that detects the temperature of the ink in the nozzles. A control portion is configured to control the recording head to perform idle drive operations which causes microvibration of an ink meniscus in each of the nozzles, to perform preliminary discharge operations to discharge the ink from the plurality of nozzles, and to change a number of times of performing the idle drive operations and a number of times of performing the preliminary discharge operations according to the temperature of the ink detected by the temperature sensor.
    Type: Grant
    Filed: December 28, 2009
    Date of Patent: August 13, 2013
    Assignee: Seiko I Infotech Inc.
    Inventors: Koichi Osumi, Keiji Hosoi
  • Patent number: 8496313
    Abstract: An image processing method of creating image data for forming an image on a recording medium by ejecting liquid droplets from a plurality of nozzles of a recording head onto the recording medium while causing relative movement of the recording medium and the recording head, includes: a correction coefficient storage step of determining correction coefficients for ejection failure correction based on difference of landing interference patterns of a plurality of types, and storing the correction coefficients for ejection failure correction according to the landing interference patterns, in a storage unit; an ejection failure nozzle position information acquisition step of acquiring ejection failure nozzle position information and a correction processing step of performing a correction calculation on input image data using a corresponding correction coefficient obtained by referring to the correction coefficients for ejection failure correction according to the ejection failure nozzle position information.
    Type: Grant
    Filed: March 24, 2011
    Date of Patent: July 30, 2013
    Assignee: FUJIFILM Corporation
    Inventor: Masashi Ueshima
  • Patent number: 8491087
    Abstract: In an ink jet head using a thermal energy for ejecting ink, this invention aims to reliably and uniformly remove kogations deposited on a heat application portion in contact with the ink. To realize this objective, the upper protective layer is arranged in an area including the heat application portion so that it can be electrically connected to serve as an electrode which causes an electrochemical reaction with the ink. The upper protective layer is formed of a material containing a metal which is dissolved by the electrochemical reaction and which does not form, on heating, an oxide film which hinders the dissolution. With this arrangement, a reliable electrochemical reaction can be produced to dissolve a surface layer of the upper protective layer, thereby removing kogations on the heat application portion reliably and uniformly.
    Type: Grant
    Filed: January 5, 2012
    Date of Patent: July 23, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Toshiyasu Sakai, Ichiro Saito, Teruo Ozaki, Sakai Yokoyama, Takahiro Matsui, Takuya Hatsui, Kazuaki Shibata
  • Patent number: 8491079
    Abstract: A liquid ejection apparatus includes: a liquid ejection head having a nozzle, wherein the liquid ejection head can eject a liquid from the nozzle and is movable in a predetermined direction; a first controller that controls, based on input data, liquid ejection of the liquid ejection head from the nozzle and movement of the liquid ejection head in the predetermined direction to apply the liquid onto an ejection area of a medium; a second controller that controls a flushing operation by moving the liquid ejection head to a flushing area outside the ejection area in the predetermined direction and ejecting the liquid from the nozzle of the liquid ejection head to the flushing area; a third controller that controls a minute vibration operation by vibrating the liquid in the nozzle to such an extent as not to eject the liquid from the nozzle; and a fourth controller that obtains information regarding the ejection area in the predetermined direction and that selectively controls the second controller and the third
    Type: Grant
    Filed: March 7, 2008
    Date of Patent: July 23, 2013
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Akira Iriguchi
  • Publication number: 20130182033
    Abstract: A liquid ejection apparatus includes: a head including an ejection face inclining an ejection opening region having ejection openings; a capping unit for selectively establishing a sealing state or an open state; an air supply opening and an air discharge opening; a humidification unit for performing a humidifying maintenance; a recording control unit for performing image recording; and a flushing control unit for performing flushing. The flushing control unit controls the head to perform the flushing such that an amount of the liquid discharged from each of a discharge-side ejection-opening group and a supply-side ejection-opening group is greater than that of the liquid discharged from the other ejection-opening group.
    Type: Application
    Filed: January 11, 2013
    Publication date: July 18, 2013
    Applicant: Brother Kogyo Kabushiki Kaisha
    Inventor: Takashi ITO
  • Patent number: 8485635
    Abstract: In a method to regenerate during operation ink in nozzles of at least one inkjet print head operating according to drop on demand in an inkjet print apparatus, nozzles of the print head that generate print dots on a printing substrate are activated such that the nozzles output first ink droplets of a predetermined volume in a direction towards the printing substrate. Nozzles that are not being currently used to generate print dots on the printing substrate are activated such that they output at least one second ink droplet of a smaller volume in comparison to the first ink droplets volume. During at least the outputting of the second ink droplet, a suction flow is generated between the inkjet print head and the printing substrate of such strength that the second ink droplet is deflected so it does not arrive at the printing substrate.
    Type: Grant
    Filed: May 24, 2011
    Date of Patent: July 16, 2013
    Assignee: Océ Printing Systems GmbH
    Inventor: Christoph Stadler
  • Patent number: 8471511
    Abstract: A voltage application unit causes switching elements to apply voltage to flow an electric current into corresponding windings to generate a revolving magnetic field. A period derivation unit derives an energization period of the windings. A signal generation unit generates a PWM signal for causing the voltage application unit to activate and deactivate the switching elements, such that a duty ratio decreases gradually in a predetermined time period subsequent to the derived energization period. A period specifying unit specifies a detection period of an electric current, which is supplied from the switching elements presently switched and deactivated, by a predetermined time period between an edge, which is caused when the PWM signal changes in level to deactivate the switching elements, and a time point in advance of the edge in the energization period.
    Type: Grant
    Filed: December 12, 2011
    Date of Patent: June 25, 2013
    Assignee: ASMO Co., Ltd.
    Inventor: Takayuki Kitagawa
  • Patent number: 8465116
    Abstract: In a printing apparatus and a printing method, the frequency of an operation of detecting an inappropriate ejection state of each ejection port is increased, while allowing a decrease in throughput to be suppressed. The printing apparatus includes a first ejection state sensing unit for carrying out an ejection state sensing process in which determination of whether or not ejected droplets are normal is executed, during a single process, on all the ejection ports formed in the print head. The printing apparatus further includes a second ejection state sensing unit for carrying out the ejection state sensing process on the ejection ports in a part of a plurality of ejection port groups into which the plurality of ejection ports formed in the print head are divided.
    Type: Grant
    Filed: August 6, 2010
    Date of Patent: June 18, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tatsuya Mori, Kiyomi Aono
  • Patent number: 8459762
    Abstract: A recording apparatus includes: an intermediate transfer member; a supply unit that supplies a curable liquid onto the intermediate transfer member, the curable liquid including at least one curable material that is cured by an external stimulus and a liquid absorbing material; a first temperature information acquisition unit that acquires temperature information related to the curable liquid; a temperature regulation unit that regulates the temperature of the curable liquid supplied onto the intermediate transfer member; an ink application unit that applies ink onto a curable liquid layer formed on the intermediate transfer member; a transfer unit that brings the curable liquid layer onto which the ink has been applied into contact with a recording medium, and transfers the curable liquid layer from the intermediate transfer member to the recording medium; and a stimulus application unit that applies a stimulus for curing the curable liquid layer to the curable liquid layer.
    Type: Grant
    Filed: January 30, 2009
    Date of Patent: June 11, 2013
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Toshitake Yui, Yoshiro Yamashita, Kentaro Ageishi
  • Patent number: 8444250
    Abstract: A liquid ejection apparatus including: a liquid-ejection head for ejecting image recording liquid; a sealing mechanism for sealing an ejection space; a humid-air supply mechanism storing humidification liquid; and a liquid-discharge portion for discharging the image recording liquid, wherein a controller controls the humid-air supply mechanism to supply an air humidified by the humidification liquid into the sealed ejection space and then controls the liquid-discharge portion to discharge the image recording liquid prior to the image recording, and wherein, where a remaining amount of the humidification liquid is less than a first value, the controller executes a control such that an amount of the supplied humid air and an amount of the discharged image recording liquid are respectively made small and large as compared with in a case where the remaining amount of the humidification liquid is not smaller than the first value.
    Type: Grant
    Filed: September 30, 2011
    Date of Patent: May 21, 2013
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Akinori Igarashi, Shuichi Tamaki
  • Patent number: 8439471
    Abstract: An ink jet recording apparatus for effecting recording using a recording head for ejecting ink, the ink jet recording apparatus including a heating section for heating the recording head, a detecting unit for detecting a temperature of the recording head, a setting unit for setting a target temperature of the recording head, and a controller for controlling the target temperature of the recording head at or above the target temperature. The controller controls the temperature by heating control for heating the recording head and by diffusing control for diffusing the heat supplied by the heating control.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: May 14, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Satoshi Hayashi, Yasunori Fujimoto, Jun Shimoji
  • Publication number: 20130100200
    Abstract: In a case where a temperature of the print head at a cap closing time is 35° C. or more and the cap closing time is less than six hours, a predetermined preliminary ejection is performed and the ejection number is set to 4000. That is, the predetermined preliminary ejection is, in a case where it is determined that the temperature of the print head at a cap closed time is lower than 35° C., performed by the ejection number larger than the ejection number of other preliminary ejection having the same cap closing time of six hours as that in the predetermined preliminary ejection. Therefore in a case where the temperature of the print head at a cap closing time is a predetermined relatively high temperature or more, the preliminary ejection more accurately reflecting the degree of the ink thickening in the print head at that time is performed.
    Type: Application
    Filed: October 15, 2012
    Publication date: April 25, 2013
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: CANON KABUSHIKI KAISHA
  • Patent number: 8408673
    Abstract: A printing apparatus and ink discharge failure detection method capable of precisely detecting temperature information corresponding to each nozzle are provided. Temperatures of respective electrothermal transducers (heaters) are measured on the basis of outputs from a plurality of sensors corresponding to the respective heaters. The temperatures of the heaters at a predetermined timing during a printing operation are predicted on the basis of the temperature change profiles of the respective heaters that are generated by energizing the heaters. A plurality of thresholds corresponding to nozzle states are generated on the basis of the predicted temperatures and the driving conditions of an inkjet printhead, and it is controlled to execute temperature measurement at the predetermined timing. A temperature measured under the control is compared with the respective generated thresholds, and the nozzle state is identified on the basis of the comparison results.
    Type: Grant
    Filed: August 27, 2010
    Date of Patent: April 2, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takatsuna Aoki, Hiroshi Takabayashi, Seiichiro Karita, Isao Hayashi
  • Patent number: 8403441
    Abstract: A driving pulse for air bubble removal flushing which is a first maintenance pulse is a driving pulse which removes air bubbles in an ink flow path of a recording head, a driving pulse for thickened ink discharge flushing which is a second maintenance pulse is a driving pulse which removes thickened ink, thereby stabilizing a meniscus, and in a maintenance process which restores ejection capability of the recording head, after an air bubble removal flushing process is executed by using the driving pulse for air bubble removal flushing, a thickened ink discharge flushing process is executed by using the driving pulse for thickened ink discharge flushing.
    Type: Grant
    Filed: October 28, 2010
    Date of Patent: March 26, 2013
    Assignee: Seiko Epson Corporation
    Inventors: Shinichi Tsubota, Shuji Yonekubo
  • Patent number: 8388097
    Abstract: A printer has a print head check unit that performs an ink ejection check to confirm whether or not ink is being ejected normally from nozzles, based on induced voltage generated when charged ink droplets are ejected onto a check area. Upon receipt of a print instruction (S100), the printer sets a flag F to 1 so as to start an ink ejection check and starts a paper feed process (S110). When the processes has been terminated (S120, S130), the printer starts printing. Accordingly, as an ink ejection check takes place concurrently with the paper feed process, the overall time required for the processes can be reduced, in comparison with any method in which the processes are executed separately. In this way, because of efficient implementation, the overall time required for the processes of the ejection check of the print recording liquid and an image forming process can be reduced.
    Type: Grant
    Filed: April 22, 2010
    Date of Patent: March 5, 2013
    Assignee: Seiko Epson Corporation
    Inventor: Seiji Izuo
  • Patent number: 8382234
    Abstract: A printhead maintenance system for maintaining a printhead having an ink ejection face is provided. The maintenance system comprises: (a) a foaming system for providing liquid foam on the face, (b) a foam transfer surface for receiving the foam from said face, (c) a transport mechanism for feeding said transfer surface through a transfer zone and away from said printhead, and (d) a valve configurable in first and second positions, the first position for establishing fluid communication between said printhead and an ink supply system and the second position for establishing fluid communication between said printhead and said foaming system. The transfer zone is adjacent to and spaced apart from said ink ejection face.
    Type: Grant
    Filed: December 3, 2009
    Date of Patent: February 26, 2013
    Assignee: Zamtec Ltd
    Inventors: Vesa Karppinen, Kia Silverbrook, John Douglas Peter Morgan, David John Worboys, Patrick John McAuliffe
  • Patent number: 8376506
    Abstract: In one embodiment, a drop detection method includes: moving a light source along a first side of the drop zone to illuminate drops passing through a drop zone; and, without blocking any part of the drop zone, detecting light scattered off the drops as the drops pass through the drop zone. In another embodiment, a drop detector includes: a light source on a first side of the drop zone for illuminating drops passing through a drop zone; a light detector on the first side of the drop zone near the light source and a movable carriage carrying the light source and the light detector. The light detector is exposed to the drop zone for detecting light scattered off drops as the drops pass through the drop zone. The carriage is movable along the first side of the drop zone in a direction transverse to the drop direction.
    Type: Grant
    Filed: July 29, 2009
    Date of Patent: February 19, 2013
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Matthew A Shepherd, Alexander Govyadinov, Erick B Kinas, Paul Richards, Tom Deskins, Steven H Walker
  • Patent number: 8376505
    Abstract: A media processing device, control method therefor, and associated program prevent a drop in the throughput of a media production process due to cleaning the print head. A publisher has a media drive, a transportation unit that conveys a recording medium according to a transportation command received from a host, and a printer that discharges ink from the nozzles of a print head to print on the label side of the recording medium. The printer also applies a cleaning process to the print head according to an internal signal that is generated when the transportation command or a data write command is received from a host. The cleaning process is executed while the media is conveyed.
    Type: Grant
    Filed: January 15, 2010
    Date of Patent: February 19, 2013
    Assignee: Seiko Epson Corporation
    Inventors: Hidetoshi Maeshima, Junichi Otsuka, Kazuya Toshima
  • Patent number: 8366237
    Abstract: A maintenance assembly for cleaning a plurality of printheads in a printing machine comprises two or more cleaning members, each of the cleaning members sized and positioned to clean at least one but less than all of the plurality of printheads when in a cleaning position. A drive mechanism associated with each of the two or more cleaning members is configured to selectively move an associated cleaning member to and from the cleaning position and a retracted position. The cleaning members are supported on a frame with a mechanism provided for translating the frame into position juxtaposed with the plurality of printheads and a further mechanism to swipe the cleaning members across the printheads. The maintenance assembly is operable to clean only selected printheads in a single operation.
    Type: Grant
    Filed: March 24, 2009
    Date of Patent: February 5, 2013
    Assignee: Xerox Corporation
    Inventors: Scott Phillips, Mark Cellura, Elliott Eklund, Igor Podzorov, Richard Germain
  • Patent number: 8348413
    Abstract: An ink jet recording apparatus is provided. The ink jet recording apparatus includes a supporting member for supporting a recording medium, an ink head comprising a nozzle surface disposed opposite the recording medium during a print operation, an ultraviolet light irradiation device coupled to the ink head in a freely movable manner, an ink head aiding system comprising a plurality of elements including at least a wiper for wiping the nozzle surface of the ink head or a cap for covering the nozzle surface of the ink head, and at least a portion of the irradiation section of the ultraviolet light irradiation device is located in front of at least one of the elements of the ink head aiding system.
    Type: Grant
    Filed: July 30, 2009
    Date of Patent: January 8, 2013
    Assignee: Roland DG Corporation
    Inventor: Harumichi Doo
  • Patent number: 8348364
    Abstract: A fluid supply device, a printing device, and a method of cleaning a printing device are disclosed. A fluid supply device includes a main tank, a fluid chamber, a fluid-discharging head, a movable carriage, an expansion mechanism that expands the fluid chamber to draw fluid from the main tank, a suction mechanism, a remaining fluid detection unit, a comparison unit that compares the remaining fluid volume in the main tank with a specified value, and a setting unit that sets a cleaning mode. The expansion mechanism is actuated via a movement of the movable carriage. The setting unit sets a first cleaning mode in which a first amount of fluid is vacuumed from the nozzle or a second cleaning mode in which a second amount of fluid is vacuumed from the nozzle that is less than the first amount. The cleaning mode is selected in response to the amount of fluid remaining in the main tank.
    Type: Grant
    Filed: November 3, 2009
    Date of Patent: January 8, 2013
    Assignee: Seiko Epson Corporation
    Inventor: Susumu Taga
  • Patent number: 8342762
    Abstract: Information indicating whether or not a printhead of a printer has been replaced or detached is obtained. Before the start of printing on the printer, a message is displayed prompting for print position adjustment of the printer if it is determined, based on the obtained information, that the printhead has been replaced or detached. The information indicating whether or not a printhead has been replaced or detached is initialized based on a response to the displayed message.
    Type: Grant
    Filed: July 6, 2006
    Date of Patent: January 1, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventor: Nobuhiro Saito