Class / Patent application number | Description | Number of patent applications / Date published |
347028000 | Solvent | 67 |
20080238984 | INKJET RECORDING APPARATUS AND METHOD - The inkjet recording apparatus includes: a liquid set which includes a plurality of first liquids and a second liquid, the first liquids each containing solvent-insoluble materials, the second liquid causing the solvent-insoluble materials to form aggregate; a liquid ejection device which ejects the first liquids and the second liquid from different ejection ports; and a cleaning liquid supply device which supplies a cleaning liquid causing the aggregate of the solvent-insoluble materials to redispersed. The liquid set satisfies Dmax/Drain≦ | 10-02-2008 |
20080266350 | APPARATUS TO PRINT PRINTING PATTERNS USING INKJET TECHNIQUE AND METHOD THEREOF - An apparatus to print printing patterns using an inkjet technique and a method thereof. The apparatus includes an inkjet head to eject ink on a substrate to form the printing patterns, and a solvent coating unit disposed on at least one side of the inkjet head to uniformize a solvent atmosphere formed around the printing patterns during a drying of the ink. The solvent coating unit coats a solvent layer on the substrate to surround the printing patterns formed on an edge of the substrate. | 10-30-2008 |
20080278536 | INKJET IMAGE-FORMING APPARATUS AND METHOD THEREOF - An inkjet image-forming apparatus includes an inkjet head having a length corresponding to a width of a paper and a nozzle unit on which a plurality of nozzles are formed, and a maintenance unit that is formed on a lower side of the inkjet head to reciprocally move in a lengthwise direction of the inkjet head to maintain the inkjet head, and includes a carriage and a development maintaining unit attachably and detachably installed on the carriage, wherein the development maintaining unit includes a washing unit that washes away foreign materials contaminating the nozzle unit, using solvent waves generated by applying ultrasonic waves of an ultrasonic wave generation unit to a solvent contained in the washing unit, a wiping blade that wipes the foreign materials and the solvent remaining on a surface of the nozzle unit by contacting with the nozzle unit, and an ink container that contains ink ejected from the nozzles by a spitting operation of the nozzles. | 11-13-2008 |
20080303857 | NOZZLE CHIP CLEANING APPARATUS OF INKJET PRINTER, INKJET PRINTER USING THE SAME, AND METHOD THEREOF - A nozzle chip cleaning apparatus of an inkjet printer in which a structure to supply and drain a cleaning solution to clean nozzle chips. The nozzle chip cleaning apparatus includes a cleaning bath in which a cleaning solution is contained to clean the nozzle chips, an ultrasonic wave device installed in the cleaning bath to generates waves in the cleaning solution contained in the cleaning bath so that the cleaning solution reaches the nozzle chips, a supply and drain pipe that performs as a supply pipe to supply the cleaning solution from a cleaning solution storage tank to the cleaning bath and as a drain pipe to drain the cleaning solution that has been supplied to the cleaning bath to the cleaning solution storage tank, and a pump that provides a driving force to supply and drain the cleaning solution through the supply and drain pipe. According to the above configuration, since the supply and drain of the cleaning solution is performed using one supply and drain pipe, a space that is occupied by the pipe can be reduced, thereby reducing a size of the inkjet printer. | 12-11-2008 |
20080316250 | IMAGE FORMING APPARATUS - An image forming apparatus including a printing ink tank to contain a printing ink, a nozzle unit having a nozzle part to eject the printing ink and to move between a printing section and a cleaning section, a cleaning ink tank to contain a cleaning ink to clean the nozzle part, and a control part to control supply of the printing ink to the nozzle part when the nozzle unit is positioned in the printing section and to control supply of the cleaning ink to the nozzle part when the nozzle unit is positioned in the cleaning section. The Image forming apparatus may further include a cleaning ink collecting unit which collects the cleaning ink discharged from the nozzle part and returns the collected cleaning ink to the cleaning ink tank. | 12-25-2008 |
20080316251 | PRINT HEAD CLEANING DEVICE AND INK-JET IMAGE FORMING APPARATUS HAVING THE SAME - A print head cleaning device and an ink-jet image forming apparatus having the same are disclosed. The ink-jet image forming apparatus includes a print head having a nozzle part to eject an ink, and a print head cleaning device to clean the nozzle part. The print head cleaning device includes a cleaning liquid tank to store a cleaning liquid, a cleaning bath mounted below the nozzle part to be supplied with the cleaning liquid from the cleaning liquid tank, a connecting tube to connect the cleaning liquid tank to the cleaning bath, a pump connected to the connecting tube to circulate the cleaning liquid, a sensing tube mounted in a portion of the connecting tube and provided with a flow passage through which the cleaning liquid flows, a moving member mounted within the flow passage of the sensing tube so as to move by the flow of the cleaning liquid, and a sensor to sense the movement of the moving member. Accordingly, it can be easily ascertained whether the cleaning liquid is smoothly supplied, by sensing the movement of the moving member in the sensing tube mounted within the cleaning liquid supply passage. | 12-25-2008 |
20090015624 | INK-JET IMAGE FORMING APPARATUS - An image forming apparatus includes an ink-jet head having a plurality of head chips arranged in a width direction of a printing medium while forming a row, a conveyer unit to extend to correspond to the ink-jet head below the ink-jet head, and a cleaning device which is movably installed on the conveyer unit to sequentially clean the head chips while moving along the conveyer unit. The cleaning device can clean a ling printing-type image forming apparatus while moving along the conveyer unit. | 01-15-2009 |
20090115815 | METHOD FOR FILLING FUNCTIONAL LIQUID DROPLET EJECTION HEAD WITH FUNCTIONAL LIQUID, FUNCTIONAL LIQUID SUPPLYING DEVICE AND LIQUID DROPLET EJECTION APPARATUS FOR MANUFACTURING ELECTRO-OPTICAL APPARATUS, AND ELECTRO-OPTICAL APPARATUS - Provided herein is a method for filling a functional liquid droplet ejection head with functional liquid. The method includes: initially filling functional liquid channels and intrahead channels included in the functional liquid droplet ejection head with a functional liquid by introducing functional liquid from a functional liquid tank through the functional liquid channels to the functional liquid droplet ejection head used in an inkjet mode; and passing cleaning liquid into the functional liquid channels and the intrahead channel included in the functional liquid droplet ejection head prior to the initially filling. | 05-07-2009 |
20090153614 | Printhead Assembly Comprising Ink Reservoir Containing Cleaning Liquid - An inkjet printer comprising: (a) an inkjet printhead; (b) a plurality of reservoirs in fluid communication with nozzles in the printhead, at least one of the reservoirs being an ink reservoir containing printing ink, and at least one of the reservoirs being a cleaning reservoir containing a cleaning liquid for cleaning an ink ejection face of the printhead; (c) a pressure device for positively pressurizing the cleaning reservoir; (d) a conduit providing fluid communication between the cleaning reservoir and the printhead; and (e) a valve in the conduit for controlling a supply of cleaning liquid to the printhead. | 06-18-2009 |
20090184996 | INK INJECTING APPARATUS - An ink injecting apparatus includes a nozzle that is used for injecting ultraviolet-curable ink to a medium, an irradiation unit that includes an irradiation face for irradiating an ultraviolet ray to the ultraviolet-curable ink adhering to the medium, and a rotary body that has a holding area for holding the medium and a non-holding area on a circumferential face, rotates with the circumferential face facing the irradiation face, and includes a touch member that moves to a position for touching the irradiation face and is brought into touch with the irradiation face in the non-holding area in accordance with rotation of the rotary body for removing the ultraviolet-curable ink adhering to the irradiation face. | 07-23-2009 |
20090237445 | LIQUID COMPOSITION TO CLEAN NOZZLE SURFACE AND CLEANING DEVICE HAVING THE SAME - A liquid composition to clean an inkjet nozzle, and a inkjet head cleaning unit that contains the same. The liquid composition includes an inkjet ink stabilizer capable of removing impurities from an inkjet nozzle. | 09-24-2009 |
20090289988 | Method Of Cleaning A Printhead Using Liquid Foam - A method of cleaning an inkjet printhead, by generating a liquid foam on the ink ejection face such that particulate contaminants on the ejection surface disperse into the foam, then transferring the foam, together with the particulate contaminants dispersed within, onto a rotatable transfer surface moving relative said ejection face and, rotating the rotatable transfer surface into contact with a removal surface to remove the foam and the particulate contaminants dispersed within. Ink consumption is minimized by use of a foam and damage to the face is avoided since the rotatable transfer surface does not contact the face. | 11-26-2009 |
20090303279 | NOZZLE WETTING APPARATUS AND INKJET IMAGE FORMING APPARATUS HAVING THE SAME - A nozzle wetting apparatus for an inkjet image forming apparatus includes a cleaning solution tank to store cleaning solution for cleaning a nozzle; a cleaning solution supplying unit to supply cleaning solution to the nozzle, the cleaning solution supplying unit including a vibration generating member to generate vibrations to atomize the cleaning solution. The nozzle wetting apparatus applies cleaning solution to the nozzles to clean the nozzles of the image forming apparatus without touching the nozzles. | 12-10-2009 |
20090303280 | PRINTING HEAD CLEANING APPARATUS, IMAGE FORMING APPARATUS HAVING THE SAME AND METHOD TO CLEAN PRINTING HEAD - A printing head cleaning apparatus usable with an image forming apparatus includes a spraying unit to spray a quantity of cleaning solution using a sprayer and a cleaning shuttle to carry the spraying unit. The spraying unit includes a cleaning solution tank to store the cleaning solution sprayed by the sprayer, a spraying cam to operate the sprayer to selectively spray a quantity of the cleaning solution, and a cam driving member to cause the spraying cam to rotate according to movement of the cleaning shuttle. | 12-10-2009 |
20090315942 | INKJET CLEANING UNIT AND METHOD - An inkjet cleaning unit includes a reservoir housing an inkjet wiping fluid that includes a non-wettable material; and an applicator wick fluidly coupled to the reservoir, in which the applicator wick is configured to transport the inkjet wiping fluid from the reservoir to a surface of an inkjet material dispenser. A method for cleaning an inkjet material dispenser includes applying an inkjet wiping fluid from a reservoir housing the inkjet wiping fluid to a surface of the inkjet material dispenser; in which the inkjet wiping fluid includes a non-wettable material; and in which an applicator wick is fluidly coupled to the reservoir to transport the inkjet wiping fluid from the reservoir to the surface of the inkjet material dispenser. | 12-24-2009 |
20100079536 | PRINTHEAD MAINTENANCE SYSTEM FOR APPLYING FOAM TO PRINTHEAD - 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. | 04-01-2010 |
20100091066 | LIQUID COMPOSTION FOR CLEANING A NOZZLE SURFACE, METHOD OF CLEANING A NOZZLE SURFACE USING THE LIQUID COMPOSITION, AND INKJET RECORDING APPARATUS INCLUDING THE LIQUID COMPOSITION - Provided are a liquid composition for cleaning a nozzle surface of an inkjet printer, a method of cleaning a nozzle surface using the liquid composition and an inkjet recording apparatus including the liquid composition. The liquid composition includes a polyoxyethyleneglycol-based compound and may include a stabilizer. | 04-15-2010 |
20100214355 | CLEANING APPARATUS AND LIQUID EJECTION APPARATUS AND CLEANING METHOD - The cleaning apparatus cleans a nozzle surface of a liquid ejection head. The cleaning apparatus includes: a cleaning liquid supply device which supplies cleaning liquid to the nozzle surface while being not in contact with the nozzle surface; a liquid layer formation control device which causes the cleaning liquid supply device to supply a prescribed amount of the cleaning liquid to form a layer of the cleaning liquid that fills in a space between the cleaning liquid supply device and the nozzle surface; and a movement control device which controls a movement device so as to move the cleaning liquid supply device and the liquid ejection head relatively to each other at a relative speed in which a meniscus is not broken down, the meniscus being of the layer of the cleaning liquid in a portion of the layer of the cleaning liquid that makes contact with the nozzle surface. | 08-26-2010 |
20100214356 | RECORDING HEAD CLEANING APPARATUS, IMAGE RECORDING APPARATUS AND RECORDING HEAD CLEANING METHOD - The recording head cleaning apparatus cleans a nozzle surface of a recording head that is disposed at an inclination with respect to horizontal. The recording head cleaning apparatus includes: an application roller having a substantially conical shape of which a circumferential surface holds cleaning liquid and has an inclination corresponding to the inclination of the nozzle surface, an axis of the substantially conical shape being a rotational axis of the application roller; and a rotating device which rotates the application roller on the rotational axis to apply the cleaning liquid to the nozzle surface while not making the application roller in contact with the nozzle surface. | 08-26-2010 |
20100214357 | INKJET HEAD CLEANING APPARATUS, IMAGE RECORDING APPARATUS AND INKJET HEAD CLEANING METHOD - The inkjet head cleaning apparatus includes: a cleaning liquid application device including a cleaning liquid nozzle which applies cleaning liquid to a liquid ejection surface of an inkjet head; a cleaning liquid supply device which supplies the cleaning liquid to the cleaning liquid nozzle; and a flow speed adjustment device which adjusts a flow speed of the cleaning liquid supplied from the cleaning liquid supply device to the cleaning liquid nozzle in such a manner that a pillar of the cleaning liquid emitted from the cleaning liquid nozzle makes contact with the nozzle surface of the inkjet head. | 08-26-2010 |
20100245461 | Cleaner unit, printing apparatus, and method to clean a printing apparatus - A cleaner unit to clean an inkjet head, ejecting ink onto a recording medium, and an ink conveyer tube, conveying the ink to the inkjet head, of an inkjet printer in cleaning liquid, is provided. The cleaner unit includes an air-liquid two-phased cleaner conveyer tube, which conveys air-liquid two-phased cleaner, and a cleaner spout, which is connected to an upstream-side end of the ink conveyer tube and to a downstream-side end of the air-liquid two-phased cleaner conveyer tube with respect to a fluid flow, and through which the air-liquid two-phased cleaner is supplied to the ink conveyer tube. | 09-30-2010 |
20100245462 | LIQUID EJECTING APPARATUS AND MAINTENANCE METHOD FOR A LIQUID EJECTING APPARATUS - A liquid ejecting apparatus includes a liquid ejecting head having a nozzle formation surface with a nozzle that discharges a liquid. A cleaning member wipes the nozzle formation surface to remove liquid that has adhered thereto. An absorption member of a porous material deforms under pressure and includes an absorption surface that contacts the cleaning member to absorb liquid that has adhered thereto. A pressure member moves between a pressure position, in which the pressure member applies pressure to the absorption surface of the absorption member, and a non-pressure position, in which the pressure member does not apply pressure to the absorption surface. A movement mechanism moves the pressure member from the non-pressure position to the pressure position to cause the absorption member to deform, thereby dispersing the liquid absorbed by the absorption member from the cleaning member via the absorption surface into the interior of the absorption member. | 09-30-2010 |
20100245463 | INKJET HEAD CLEANING APPARATUS, IMAGE RECORDING APPARATUS AND INKJET HEAD CLEANING METHOD - The inkjet head cleaning apparatus includes: cleaning liquid nozzles through which cleaning liquid is applied to a liquid ejection surface of an inkjet head in which the liquid ejection surface is oblique to horizontal, the cleaning liquid nozzles being arranged in a cleaning liquid emission surface arranged with an inclination so as to face the liquid ejection surface, the cleaning liquid nozzles being arranged in a line substantially parallel with a direction of the inclination of the cleaning liquid emission surface; and a pressure application device which applies pressure to the cleaning liquid to be emitted through the cleaning liquid nozzles, wherein the pressure applied by the pressure application device to the cleaning liquid supplied to the cleaning liquid nozzles on an upper side is greater than the pressure applied by the pressure application device to the cleaning liquid supplied to the cleaning liquid nozzles on a lower side. | 09-30-2010 |
20100245464 | INKJET HEAD CLEANING APPARATUS, IMAGE RECORDING APPARATUS AND INKJET HEAD CLEANING METHOD - The inkjet head cleaning apparatus includes: a cleaning liquid holding device having a cleaning liquid holding surface with which cleaning liquid is held and applied to a liquid ejection surface of an inkjet head in which the liquid ejection surface is oblique to a horizontal plane, the cleaning liquid holding surface being arranged with an inclination such that the cleaning liquid holding surface is substantially parallel with the liquid ejection surface of the inkjet head and faces the liquid ejection surface at a prescribed distance from the liquid ejection surface; and a cleaning liquid supply device which has a cleaning liquid supply port through which the cleaning liquid is supplied from an upper portion of the inclined cleaning liquid holding surface in such a manner that the cleaning liquid slides down the inclined cleaning liquid holding surface while forming a meniscus between the cleaning liquid holding surface and the liquid ejection surface. | 09-30-2010 |
20100271419 | DROPLET EJECTING APPARATUS, A DROPLET ADHERENCE PREVENTING METHOD AND A CLEANING METHOD FOR CLEANING A RECORDING MEDIUM CARRIER ROLLER - Droplet ejecting apparatus has a recording medium carrier portion provided with recording medium carrier rollers conveying a recording medium, a droplet ejecting portion discharging droplets to the recording medium, and a droplet adherence preventing liquid applying portion applying droplet adherence preventing liquid preventing adherence of the droplets to at least one of the recording medium carrier rollers. | 10-28-2010 |
20100295892 | METHOD OF CLEANING A SCRAPER DEVICE - The invention relates to a method of cleaning doctor devices ( | 11-25-2010 |
20110050795 | INK SET AND IMAGE FORMATION METHOD - The present invention provides an ink set including an ink composition and a maintenance liquid, wherein the ink composition includes a pigment, polymer particles having a glass transition temperature (Tg) of 50° C. or higher, and at least one of urea or a urea derivative. | 03-03-2011 |
20110069114 | MAINTENANCE LIQUID, INK SET, AND MAINTENANCE METHOD - The invention provides a maintenance liquid, containing water, a water-soluble organic solvent, and at least one of a water-soluble silicate represented by Formula (1) or colloidal silica: | 03-24-2011 |
20110074870 | LIQUID EJECTION HEAD CLEANING APPARATUS AND IMAGE RECORDING APARATUS - The liquid ejection head cleaning apparatus includes: a cleaning liquid deposition device which spouts cleaning liquid from a plurality of cleaning liquid nozzles and deposits the cleaning liquid onto an ejection surface of a liquid ejection head; a cleaning liquid supply device which supplies the cleaning liquid to the cleaning liquid nozzles by using a liquid head differential with respect to the cleaning liquid deposition device; a temperature measurement device which measures an ambient temperature around the cleaning liquid supply device; and a pressure control device which controls a pressure of the cleaning liquid supplied to the cleaning liquid deposition device from the cleaning liquid supply device in accordance with the ambient temperature measured by the temperature measurement device. | 03-31-2011 |
20110074871 | Method of Forming Organic Film, and Organic Film, Nozzle Plate and Inkjet Recording Apparatus - The method of forming an organic film includes: a pre-processing step including a plasma treatment step of carrying out plasma treatment to a surface of a base member, and an exposure processing step of exposing the surface of the base member that has undergone the plasma treatment, in an atmosphere containing at least water; an organic film formation step of thereafter forming an organic film on the surface of the base member using a silane coupling agent; and a post-processing step including a water vapor introduction step of holding the base member on which the organic film has been formed in an atmosphere containing at least water vapor, and a dehydration processing step of holding the base member in an atmosphere having a smaller presence of water vapor than the atmosphere in the water vapor introduction step. | 03-31-2011 |
20110115844 | PRINTING DEVICE - A printing device ( | 05-19-2011 |
20110128321 | SERVICING ARTICLE - In one embodiment, a servicing article comprises a web comprising a first material impregnated with a servicing fluid, the servicing fluid including a solvent that does not evaporate at ambient printer conditions, and a plurality of physical barriers within the first material, extending approximately across the first material's width, to restrict servicing fluid migration lengthwise along the web. | 06-02-2011 |
20110234692 | MAINTENANCE LIQUID FOR INK JET RECORDING, METHOD OF MANUFACTURING MAINTENANCE LIQUID FOR INK JET RECORDING, INK SET FOR INK JET RECORDING, AND IMAGE FORMING METHOD - The present invention provides a maintenance liquid for ink jetting, the maintenance liquid including: water and an organic solvent having an ether bond, a content of the organic solvent being from 15% by mass to 40% by mass with respect to maintenance liquid, and a concentration of peroxide in the maintenance liquid being 0.1 mmol/L or lower; a method of manufacturing the above maintenance liquid for ink jetting, the method including a process for mixing water and the organic solvent having an ether bond; and a process for purifying by distilling in advance the organic solvent having an ether bond that is used in the mixing; an ink set for ink jetting including: the maintenance liquid for ink jetting and an aqueous ink composition having a pH of from 7.0 to 10.0; and an image forming method that uses the ink set for ink jetting. | 09-29-2011 |
20110234693 | NOZZLE SURFACE CLEANING APPARATUS AND DROPLET EJECTION APPARATUS - A nozzle surface cleaning apparatus is configured to clean a nozzle surface of a droplet ejection head in which the nozzle surface is inclined with respect to a horizontal plane. The nozzle surface cleaning apparatus includes: a cleaning liquid deposition device which deposits cleaning liquid on the nozzle surface while moving relatively to the nozzle surface in a direction perpendicular to a direction of inclination of the nozzle surface; and an excess cleaning liquid removal device which removes excess cleaning liquid adhering to a lower edge portion of the nozzle surface in terms of the direction of inclination, while moving relatively to the nozzle surface in the direction perpendicular to the direction of inclination of the nozzle surface, the excess cleaning liquid being a part of the cleaning liquid deposited by the cleaning liquid deposition device. | 09-29-2011 |
20110261109 | INKJET PRINTING APPARATUS - An inkjet printing apparatus includes an inkjet print-head, an ink inlet conduit, a vacuum device, and a cleaning assembly. The inkjet print-head defines a number of nozzles. The ink inlet conduit is connected to the inkjet print-head and communicates with the nozzles. The cleaning assembly includes a cleaning member defining a cleaning groove. The vacuum device is connected to the inkjet print-head to impel cleaner received in the cleaning groove to flow through the nozzles along a direction reverse of a direction the ink is jetted. | 10-27-2011 |
20120105538 | HEAD CLEANING DEVICE, IMAGE FORMING APPARATUS, AND HEAD CLEANING METHOD - A head cleaning device includes: a cleaning liquid holding unit provided with a cleaning liquid holding surface inclined corresponding to the nozzle surface of an ink jet head obliquely disposed; movement unit moving a head with respect to the cleaning liquid holding unit; and a cleaning liquid supply unit that supplies cleaning liquid from the upper portion of inclination so as to slide down the inclination of a cleaning liquid holding surface while cleaning liquid forms a meniscus between the cleaning liquid holding surface and the nozzle surface, in a state where the cleaning liquid holding surface and the nozzle surface face each other, and includes cleaning liquid nozzles disposed so that a position of the outer edge on the downstream side of the head in a movement direction is located further to the upstream side than the center in a head movement direction of the cleaning liquid holding surface. | 05-03-2012 |
20120154483 | LIQUID DROPLET EJECTION HEAD, IMAGE FORMING APPARATUS INCLUDING SAME, AND METHOD FOR CLEANING SAME - A liquid droplet ejection head including a common liquid chamber, multiple individual liquid chambers communicating with the common liquid chamber, to which a liquid is supplied via the common liquid chamber, a nozzle plate containing multiple nozzles communicating with the multiple individual liquid chambers to eject the liquid, a filter disposed within a passageway between the common liquid chamber and the multiple individual liquid chambers to remove foreign substances from the liquid, and a through-hole provided adjacent to the filter to communicate with the multiple individual liquid chambers, and sealed by a frame member in which the common liquid chamber is formed. | 06-21-2012 |
20120176444 | LIQUID EJECTION APPARATUS, CONTROLLER THEREFOR, NONVOLATILE STORAGE MEDIUM STORING PROGRAM TO BE EXECUTED BY THE APPARATUS - A liquid ejection apparatus including: a head having an ejection face having openings through which recording liquid is ejected; a conveyance member having a face that is disposed so as to be opposed to the ejection face and that is moved while supporting a recording medium to convey the recording medium; a cleaning-liquid supply portion configured to supply cleaning liquid onto the face; a wiper movable relative to the face while contacting the face to remove the recording liquid on the face; and a cleaning-operation executing section configured to execute a first cleaning operation including a first operation for reducing an amount of the recording liquid on the face and a second operation in which the cleaning liquid is supplied onto the face after the first operation, and then the recording liquid and the cleaning liquid on the face are removed by the wiper. | 07-12-2012 |
20120194606 | LIQUID DISCHARGE APPARATUS AND MAINTENANCE SYSTEM FOR LIQUID DISCHARGE APPARATUS AND METHOD OF MANUFACTURING LIQUID DISCHARGE APPARATUS - A liquid discharge apparatus includes a discharge space which faces a discharge surface of a liquid discharge head which is sealed by a cap. A humidification pump is driven to rotate forward such that air in a discharge space is humidified while passing through a water reservoir via an opening and tubes. Humidified air flows into the discharge space via a tube and an opening. When an amount of non-volatile component in the water reservoir exceeds a prescribed amount, the humidification pump is driven to rotate backward such that water stored in the water reservoir is exhausted through the opening via the tubes. | 08-02-2012 |
20120229560 | LIQUID EJECTING APPARATUS - A liquid ejecting apparatus includes: a liquid ejecting head which has a nozzle formation surface that ejects a liquid containing a solvent in a vaporized state with a specific gravity greater than that of air onto a recording medium, and is in a standby state in which the nozzle formation surface faces a lower side in the vertical direction at a standby position deviating from a region where the recording medium is disposed during non-ejection of the liquid; and a head accommodation portion which has a concave portion that accommodates at least a part including the nozzle formation surface of the liquid ejecting head in the standby state and is provided so that a bottom portion of the concave portion opposes the nozzle formation surface in a state where the part is accommodated. | 09-13-2012 |
20120236071 | CLEANING APPARATUS AND LIQUID EJECTION APPARATUS AND CLEANING METHOD - The cleaning apparatus cleans a nozzle surface of a liquid ejection head. The cleaning apparatus includes: a cleaning liquid supply device which supplies cleaning liquid to the nozzle surface while being not in contact with the nozzle surface; a liquid layer formation control device which causes the cleaning liquid supply device to supply a prescribed amount of the cleaning liquid to form a layer of the cleaning liquid that fills in a space between the cleaning liquid supply device and the nozzle surface; and a movement control device which controls a movement device so as to move the cleaning liquid supply device and the liquid ejection head relatively to each other at a relative speed in which a meniscus is not broken down, the meniscus being of the layer of the cleaning liquid in a portion of the layer of the cleaning liquid that makes contact with the nozzle surface. | 09-20-2012 |
20120274701 | ASSISTED MAINTENANCE FOR PRINTHEAD FACEPLATE SURFACE - An ink jet printhead maintenance system, which can be part of an ink jet printer, for removing ink residue from a printhead faceplate. The printhead maintenance system can include a supply of liquid which can be applied to the ink residue on the printhead faceplate using various techniques, such as those described. The liquid can include a monomer and/or an oligomer. The wet clean system described can be more effective in removing ink residue which can result from certain inks, such as ultraviolet curable gel inks, than previous printhead maintenance techniques. | 11-01-2012 |
20120281042 | Ink Jet Printer Cleaning Solution - An ink jet print head cleaning solution is disclosed. The cleaning solution comprises water and a non-ionic seed oil surfactant. | 11-08-2012 |
20120299993 | PRINTER CLEANING METHOD - A method of cleaning a print head assembly comprising a print head and a cover includes removing the cover from the print head assembly. A cleaning unit includes a fluid chamber, a fluid intake port, and a fluid exit port. The cleaning unit is attached to the print head such that the fluid chamber surrounds a portion of the print head. A solvent is introduced into the fluid chamber to contact the print head. The solvent is allowed to clean the print head. The solvent is removed from the chamber. | 11-29-2012 |
20130021407 | NOZZLE SURFACE CLEANING DEVICE AND LIQUID DROPLET EJECTING APPARATUS - A nozzle surface cleaning device includes an ink jet head having a nozzle surface with a nozzle disposed therein, a cleaning solution supplying unit that faces the nozzle surface and supplies a cleaning solution, a movement unit that moves one of the cleaning solution supplying unit and the head in longitudinal and traverse directions of the head, and a movement amount control unit that controls a movement amount of at least one of the cleaning solution supplying unit and the head. The movement amount control unit adjusts an amount of the cleaning solution adhering to the nozzle surface by moving them in the traverse direction by using the movement unit in accordance with an uncleanness state of the nozzle surface or an operation history of the head to relatively change a position at which the nozzle surface and the cleaning solution supplying unit face and overlap with each other. | 01-24-2013 |
20130088544 | WIPING METHOD FOR INKJET RECORDING HEAD - An inkjet recording apparatus to record an image by discharging ink includes a recording head, a processing-liquid transferring unit, a wiper, and a control unit. The recording head includes, at a discharge surface, a first discharge-port row configured to discharge a first ink and a second discharge-port row configured to discharge a second ink. The processing-liquid transferring unit provides processing liquid. The wiper wipes the discharge surface, wherein the wiper includes a first wiper segment positioned to wipe the first discharge-port row and a second wiper segment positioned to wipe the second discharge-port row. The control unit moves the wiper into and out of contact force engagement with the processing-liquid transferring unit, wherein the first wiper segment receives a quantity of processing liquid from the processing-liquid transferring unit that is greater than a quantity of processing liquid received by the second wiper segment from the processing-liquid transferring unit. | 04-11-2013 |
20130176359 | PRINT HEAD CLEANING COMPOSITION AND METHOD FOR CLEANING PRINT HEAD USING SAME - An ink-like cleaning solution for cleaning an inkjet print head installed in an inkjet printer and having deposits of ink, includes: a viscosity agent for adjusting the viscosity of the ink-like cleaning solution; a surfactant for adjusting the surface tension of the ink-like cleaning solution; a cleaning agent for breaking down the deposits of ink; and a solvent miscible with the ink, in which the viscosity agent, the surfactant, and the cleaning agent are dissolved or dispersed. The viscosity and the surface tension of the ink-like cleaning solution are equivalent to those of the ink used for printing with the inkjet print head such that the inkjet print head can print on a media using the ink-like cleaning solution under conditions for printing. | 07-11-2013 |
20130176360 | METHOD TO CLEAN NOZZLES OF AT LEAST ONE INK PRINT HEAD WITH A FLUSHING MEDIUM IN AN INK PRINTING APPARATUS - In a method to clean nozzles and ink channels of at least one ink print head with a flushing medium in an ink printing apparatus, a necessary flushing quantity of the flushing medium that is to be provided and which is necessary for flushing of the ink print head in a flushing process is determined from either a predetermined flushing quantity predetermined depending on a print duration of the ink printing apparatus or from a drive flushing quantity derived from a flushing quantity curve that indicates a dependency of the flushing quantity on an elapsed time for an ink used in printing, the necessary flushing quantity being either said predetermined flushing quantity or the derived flushing quantity, whichever is greater. The determined necessary flushing quantity is used to flush the ink print head. | 07-11-2013 |
20130222468 | LIQUID COMPOSITION, INK JET RECORDING METHOD, INK JET RECORDING APPARATUS AND RECORDED ARTICLE - A liquid composition including: a radical polymerization inhibitor; a solvent; and a surfactant, wherein the content of the radical polymerization inhibitor is 0.1 to 50% by weight. | 08-29-2013 |
20130249997 | LIQUID EJECTION DEVICE AND MAINTENANCE METHOD THEREOF - Provided are a liquid ejection device and a maintenance method thereof which are capable of effectively removing, for example, a liquid in a gap between heads. The liquid ejection device includes: a line head which includes a plurality of heads connected to each other in a longitudinal direction and in which a liquid-repellent treatment is performed for a side surface of each head facing an adjacent head; a tube supporting member that is provided between adjacent heads on a side opposite to a liquid ejection surface of the head and supports a tube having one end inserted between the heads; and a gas supply unit that is connected to the other end of the tube and supplies gas between the heads from the one end of the tube. | 09-26-2013 |
20130257975 | CLEANING METHOD AND CLEANING DEVICE - A cleaning method of an ink supply path in a recording apparatus where ink is supplied from an ink cartridge, includes a first cleaning step of cleaning by supplying to the ink supply path a gas-liquid mixture of a cleaning liquid A provided with an ink cleaning action and gas, and a second cleaning step of cleaning by supplying to the ink supply path a cleaning liquid B provided with an air bubble suppressing action after the first cleaning step. | 10-03-2013 |
20130293632 | Cleaning a Nozzle Plate Having a Non-Wetting Layer - A method for cleaning a nozzle plate includes applying a first solution to a surface of the nozzle plate, and applying a second solution different from the first solution to the surface of nozzle plate to remove the first solution from the surface of nozzle plate. The first solution wets the nozzle plate and is a solvent to dried ink deposited on the surface of the nozzle plate. The surface of the nozzle plate is non-wetting to the second solution. | 11-07-2013 |
20130314471 | METHOD AND CLEANING FLUID FOR CLEANING INKJET PRINT HEADS, USE OF A CLEANING FLUID OF THIS TYPE, METHOD FOR OPERATING INKJET PRINT HEADS - When cleaning inkjet print heads, a first cleaning fluid is provided which comprises at least one cellulase or a catalytically active derivative thereof. A contaminated and/or blocked inkjet print head ( | 11-28-2013 |
20140022301 | Fluid Applicator for a Printhead Face - An apparatus applies release agent to a printhead face to prevent ink from wetting the surface of the printhead face. The release agent is applied by an applicator that is coupled to a release agent supply by a wicking member. The applicator can be integrated into a wiper for the printhead to enable release agent application and printhead facing wiping to occur at approximately the same time. | 01-23-2014 |
20140139587 | Printhead Having Apertures For Application Of A Surface Treatment Fluid - A printhead enables surface treatment fluid to be applied to the face of the printhead through at least one aperture located in the printhead faceplate. The printhead receives pressurized surface treatment fluid, which flows through a reservoir in the printhead, through at least one channel in the jet stack, and out the at least one aperture onto the surface of the faceplate. The surface treatment fluid is spread across ink apertures in the faceplate to disable ink from drooling from the ink apertures. | 05-22-2014 |
20140240393 | INK SET FOR INK JET RECORDING, AND RECORDING APPARATUS - An ink set includes a recording ink and a displacement ink. The recording ink contains a pigment, a resin, water, and a first surfactant and is substantially free of alkyl polyols with a normal boiling point of 280° C. or more. The displacement ink contains water, a second surfactant, an aprotic polar solvent, and an alkyl polyol with a normal boiling point of 280° C. or more. Each of the first surfactant and the second surfactant includes a silicone surfactant and/or a fluorosurfactant. The resin includes a water-soluble resin and/or a resin emulsion. The recording ink has a higher surface tension than that of the displacement ink. | 08-28-2014 |
20140368575 | LIQUID EJECTION DEVICE - A liquid ejection device includes a liquid ejection head, a cleaning member, and a waste liquid tank. The liquid ejection head has a nozzle face on which a nozzle is formed. The cleaning member has a concave space therein and is configured to be attached to the nozzle face such that the concave space is arranged between the cleaning member and the nozzle face. The waste liquid tank is configured to collect cleaning liquid discharged from the cleaning member. The cleaning member further includes a first channel configured to supply the cleaning liquid toward the nozzle face and a second channel configured to discharge the cleaning liquid from the concave space. | 12-18-2014 |
20140375721 | PRINTING SYSTEM WITH SELF-PURGE, SEDIMENT PREVENTION AND FUMES REMOVAL ARRANGEMENTS - A printing head assembly with integrated purge mechanism is disclosed. The printing head assembly comprises: (a) a liquid dispensing head comprising one or more dispensing nozzles enclosed in a nozzle plate, driven by at least first and second pressures, and (b) a shielding mask including an opening in front of the one or more nozzles, wherein the opening being configured such that when printing liquid is dispensed from the head driven by the first pressure, the liquid being dispensed in pulses through the opening in the shielding mask, and (ii) when purge printing liquid is dispensed from the head driven by the second pressure, the liquid being drawn to a capillary gap formed between the shielding mask and the nozzle plate thereby removing the purge printing liquid from the nearby nozzles. | 12-25-2014 |
20150307687 | INKJET MAINTENANCE FLUID - Provided is an inkjet maintenance fluid that is stable and very safe, exhibits good ink-cleaning performance, and is widely applicable to a variety of types of inkjet ink. This inkjet maintenance fluid contains water, a water-soluble organic solvent containing 1,3-propanediol, and a surfactant. The water-soluble organic solvent preferably constitutes at least 20% of the mass of the maintenance fluid, and 1,3-propanediol preferably constitutes at least 30% of the mass of the water-soluble organic solvent. Even low-HLB surfactants are dissolved well, allowing application to a wide range of inkjet inks. | 10-29-2015 |
20150336388 | PRINTER HEAD CLEANING DEVICE AND INKJET PRINTING DEVICE - The object is to reliably remove dirt and/or stains on the nozzle surface of a printer head. To accomplish the object, an inkjet printing device ( | 11-26-2015 |
20160031222 | PRINTER - A printer includes a head, a wiper, a cap, a supply flow path, a supply opening/closing valve, a gas channel, a gas opening/closing valve, a waste fluid flow path, a suction portion, and a processor. The processor is configured to set a covered state in which the cap covers the at least one nozzle, supply the cleaning fluid to the cap, in the covered state, by opening the supply opening/closing valve, closing the gas opening/closing valve, and driving the suction portion, discharge the cleaning fluid, in the covered state, by closing the supply opening/closing valve, opening the gas opening/closing valve, and driving the suction portion, set an uncovered state in which covering the at least one nozzle by the cap is released, and cause the wiper to slide in contact with the nozzle surface, in the uncovered state, by moving the wiper relatively with respect to the nozzle surface. | 02-04-2016 |
20160067973 | METHOD OF CLEANING INK RESIDUES OFF AN INKJET HEAD - A method for cleaning ink residues off an inkjet print head includes applying a cleaning agent to a surface of the inkjet print head and then removing the cleaning agent from the surface. The surface has nozzle openings. The cleaning agent is applied to the surface as a gel, in particular as a gel that has a purely physical cleaning effect. This allows inkjet print heads to be cleaned in a simple way with very good results while avoiding the disadvantages connected with liquid cleaning agents, such as dripping off. | 03-10-2016 |
20160068790 | MAINTENANCE LIQUID FOR INKJET PRINTERS - A maintenance liquid for inkjet printers includes at least 50 wt % of at least one ether solvent according to Formula (I) or (II) with the wt % based on the total weight of the maintenance liquid: | 03-10-2016 |
20160089889 | METHOD OF INTRODUCING INK AND INKJET RECORDING APPARATUS - A replacement assisting liquid having a lower specific weight than an ink is introduced into a recording head filled with a preservative solution containing at least a moisturizing agent to discharge the preservative solution out of the recording head. Next, the ink is introduced into the recording head to discharge the replacement assisting liquid out of the recording head. | 03-31-2016 |
20160144627 | CLEANING DEVICE - Provided is a cleaning device that can reduce maintenance-time while injecting a cleaning solution into a gap between head modules so that the cleaning solution or the like is not sucked into an inkjet head. The position of the inkjet head relative to a spray-nozzle is moved in one direction. When relative movement is performed, the relative movement is temporarily stopped or moving speed of the relative movement is reduced at a position where the gap between the head modules faces at least the spray-nozzle. The cleaning solution is sprayed to the gap at a time when the relative movement is temporarily stopped or when the moving speed of the relative movement is reduced. A removing member removing the cleaning solution present in the gap, is provided at a position separated from the spray-nozzle in the one direction by a distance of n times a pitch of the gaps. | 05-26-2016 |
20160152033 | Liquid Ejecting Apparatus, Ultrasonic Cleaning Device, and Ultrasonic Cleaning Method | 06-02-2016 |
20160193842 | PRINTHEAD CLEANING ASSEMBLY | 07-07-2016 |