Entries |
Document | Title | Date |
20080211858 | Inkjet Printhead With Electrical Disconnection Of Printhead Prior To Removal - A maintenance assembly for a pagewidth printer, said assembly operatively mounted between posts of a main body of the printer so that the maintenance assembly is positioned adjacent a printhead assembly of the printer. The maintenance assembly includes a maintenance chassis defining tongue portions and having ends which are shaped to fit over the posts of the main body to secure the maintenance assembly in position. The maintenance assembly also includes a retainer element operatively engaging the chassis, and a lower molding and an upper molding operatively fast with each other to sandwich an absorbent insert between them. The moldings are in turn sandwiched between the chassis and retainer element, so that the maintenance assembly is useable to wipe the printhead of the printer. | 09-04-2008 |
20080238981 | Printhead Maintenance Station With A Pad Mounted On A Pad Support And Having An Engagement Mechanism - Provided is a printhead maintenance station which includes a body defining an elongate slot along a length thereof, and a pad mounted on a pad support inside said body. The pad support is slidably engaged to said housing to be slidable to a first position, where the pad protrudes from the slot, and a second position, where the pad is inside the body. The station also includes an engagement mechanism to displace the pad between the first and second positions. | 10-02-2008 |
20080246798 | PRINTER ARRANGEMENT WITH PRINTHEAD AND INK TRANSPORT ASSEMBLY - A printer arrangement having a printhead mounted on a carrier, the printhead connected to a printhead controller by means of encapsulated wire bonds. The arrangement also includes an ink supply manifold having a plurality of ink reservoirs for supplying the printhead with ink, and an ink transport assembly configured to facilitate purging of ink from the printhead when the assembly is in a cleaning position. | 10-09-2008 |
20080259114 | PRINT HEAD CLEANING FLUID CONDENSATION - Various embodiments and methods relating to condensation of print head cleaning fluid upon a print head are disclosed. | 10-23-2008 |
20080273053 | INK JET RECORDING HEAD AND PRODUCTION PROCESS THEREOF - An ink jet recording element substrate includes a substrate; an ejection outlet array for ejecting ink; a heat generating element array comprising a plurality of heat generating elements for generating ejection energy for ejecting the ink from the ejection outlet array; a protecting film, comprising protecting portions, for protecting the heat generating element array; a common line, disposed along a side of the heat generating element array, for supplying electric power for driving the heat generating elements, and being divided into at least two portions by a line perpendicular to the heat generating element array; a testing electrode for testing a function of the protecting film; and an externally connecting electrode, disposed at an end of the substrate, for externally supplying electric power to the common line; wherein the ink jet recording element substrate further includes, in an area between the portions of the common line, a connecting line for electrically connecting the protecting portions of the protecting film disposed to sandwich the common line and a lead line for electrically connecting the protective film and the testing electrode. | 11-06-2008 |
20080278535 | IMAGE RECORDING APPARATUS WITH MAINTENANCE UNIT - An image recording apparatus of the present invention comprises an inkjet head which includes a nozzle plate where a plurality of nozzles that shoot ink are arranged in a column and an ink chamber which retains ink and is connected to the plurality of nozzles, at least one maintenance suction section which has a suction area larger than the nozzles, a suction section driving mechanism which causes the suction area to face the nozzles and moves the suction section relatively in the nozzle arrangement direction; and a positive pressure applying section which applies a positive pressure to the ink chamber. The maintenance suction section sucks in ink near the nozzles as moving in the nozzle arrangement direction, while the positive pressure is being applied to the ink chamber. | 11-13-2008 |
20080284813 | INK JET APPLICATOR - An ink jet applicator includes an ink jet head having nozzle via which liquid droplets are jetted, a seal mechanism sealing the nozzle using a pressure vessel; a solution supply mechanism supplying a solution to the nozzle at a predetermined pressure. | 11-20-2008 |
20080297557 | INK JET HEAD CLEANING DEVICE AND INK JET IMAGE FORMING APPARATUS HAVING THE SAME - A print head cleaning device, an ink jet image forming apparatus having the same, and methods thereof include a cleaning liquid circulation and/or a structure to clean an image forming apparatus print head. | 12-04-2008 |
20080297558 | PRINTHEAD MAINTENANCE ASSEMBLY FOR AN INKJET PRINTER - A printhead maintenance assembly for an inkjet printer includes a housing. A movable chassis is arranged in the housing. A belt is mounted on the chassis with a contact surface for sealing engagement with a printhead of the printer. The chassis and thus the belt are reciprocally movable between a first position in which the contact surface is engaged with the printhead and a second position in which the printhead is disengaged from the printhead. A pair of spools are mounted on the chassis. The belt is mounted about the spools, with one of the spools being a toothed drive spool and the other being an idler spool. A drive motor is mounted on the chassis. A drive gear driven by the motor is engaged with the drive spool so that the motor can drive the belt. The drive spool, drive gear and drive motor form part of a conveyor mechanism for conveying the belt in a direction substantially parallel with a longitudinal axis of the printhead. A cleaning station is mounted on the chassis and positioned so that the belt moves past the cleaning station to be cleaned. | 12-04-2008 |
20090027443 | INKJET PRINTER AND INKJET PRINTING METHOD - The present invention provides an inkjet printer and an inkjet printing method, which enable an ink that overflowed to the outside from the edge of a printing medium to be fully absorbed by a platen. More specifically, the present invention provides an inkjet printer, comprising a platen, which absorbs a pigment ink that overflows to the outside of a printing medium when edgeless printing is carried out on the printing medium by using an ink that employs a pigment as a colorant, moving a printing head along a guide shaft, and ejecting the pigment ink from the printing head, and also an inkjet printing method, wherein the platen is impregnated with a humecant, a base, and the like. | 01-29-2009 |
20090073215 | PRINTHEADS AND SYSTEMS USING PRINTHEADS - A printing apparatus comprises a jetting assembly including a plurality of nozzles for ejecting droplets on a substrate; an enclosure defining a print zone within which the jetting assembly prints on the substrate, the enclosure including an inlet for introducing a material associated with controlling an environment of the enclosure. | 03-19-2009 |
20090091596 | System and method for print head maintenance during continuous printing - An ink jet printer system includes a partially redundant page-wide array of moveable ink jet print heads in a print zone, means outside of the print zone for servicing the print heads, and a transfer system, configured to selectively move a redundant portion of the array of print heads out of the print zone for servicing while printing with a remainder of the array. | 04-09-2009 |
20090141069 | Inkjet Recording Apparatus - An inkjet recording apparatus comprises a conveying section having a conveying surface configured to convey a recording medium. The inkjet recording apparatus further comprises an inkjet head having a discharge surface. The inkjet recording apparatus further comprises a maintenance unit configured to maintain the inkjet head and a maintenance-unit moving mechanism configured to move the maintenance unit between a maintenance position and a withdrawal position. The inkjet recording apparatus further comprises an image sensor capable of picking up an image on the recording medium or on the conveying surface. The image sensor has a reading surface that opposes the conveying surface. The inkjet recording apparatus further comprises a cleaning member secured to the maintenance unit and configured to clean the reading surface. The inkjet recording apparatus further comprises an image-sensor moving mechanism configured to move the image sensor between an image pickup position and a cleaning position. | 06-04-2009 |
20090141070 | Recording Device and Recording Medium Conveying Method - A cleaning roller is arranged at a position facing an image sensor with a conveying belt interposed therebetween. The conveying belt has a through hole. In an image sensor cleaning mode, the cleaning roller is inserted through the through hole and contacts the image sensor, while the image sensor is held without moving. | 06-04-2009 |
20090147041 | Method Of Removing Foreign Particulates From Pagewidth Printhead - A method of removing foreign particulates from an ink ejection face of a pagewidth printhead mounted on a substrate. The substrate has a film guide positioned adjacent the printhead. The method comprises the steps of: (a) flooding the face with ink and dispersing the particulates into the flooded ink; (b) positioning a polymer film in a transfer zone so as to define a cavity defined by the ink ejection face, the film guide and the polymer film; and (c) guiding the polymer film through the transfer zone. The movement of the film in the transfer zone transfers the flooded ink onto the polymer film. | 06-11-2009 |
20090219331 | METHOD OF PRIMING A PRINTHEAD WITH CONCOMITANT REPLENISHMENT OF INK IN AN INK SUPPLY CHAMBER - A method of priming a printhead. The method comprises the steps of: (i) providing a printhead having a plurality of nozzles for ejection of ink, an ink inlet and an ink outlet; (ii) providing an ink chamber having an outlet port connected to the ink inlet via an upstream ink line, the ink chamber having an inlet port controlled by a valve; (iii) priming the printhead by pumping ink from the ink chamber, through the printhead and into a downstream ink line connected to the ink outlet; and (iv) opening the valve if a level of ink in the chamber falls below a predetermined first level and replenishing with ink from an ink reservoir when the valve is open. | 09-03-2009 |
20090219332 | METHOD OF DEPRIMING A PRINTHEAD WITH CONCOMITANT ISOLATION OF INK SUPPLY CHAMBER - A method of depriming a printhead. The method comprises the steps of: (i) providing a printhead having a plurality of nozzles for ejection of ink, an ink inlet and an ink outlet; (ii) providing an ink chamber having an outlet port connected to the ink inlet via an upstream ink line, the ink chamber having an inlet port controlled by a valve; (iii) depriming the printhead by pumping ink from a downstream ink line connected to the ink outlet, through the printhead and into the ink chamber; and (iv) closing the valve when a level of ink in the chamber reaches a predetermined first level, thereby isolating the ink chamber from an ink reservoir in fluid communication with the inlet port. | 09-03-2009 |
20090219333 | INKJET RECORDING APPARATUS - An inkjet recording apparatus is provided. The inkjet recording apparatus includes an inkjet head having a discharge surface in which discharge ports are formed for discharging ink; a moving mechanism that is configured to move the inkjet head and a recording medium relative to each other; and a capture unit that is configured to capture an extraneous substance, the capture unit disposed upstream of the inkjet head in a moving direction of the recording medium relative to the inkjet head, and disposed adjacent to the inkjet head. | 09-03-2009 |
20090244169 | IMAGE RECORDING APPARATUS - An ink jet printer has a carriage equipped with a recording head. The carriage is disposed downstream in a feeding direction of a recording medium. The carriage has an optical sensor for measuring dirt on a supply roller. When the supply roller is dirty, a cleaning operation is started to rotate the supply roller as being pressed onto a separation pad. The dirt on the supply roller is measured with the optical sensor, and the cleaning operation lasts until the dirt is removed from the supply roller. | 10-01-2009 |
20090256883 | MAINTENANCE STATION OF AN INKJET PRINTER - A maintenance station of an inkjet printer mounted in a housing of the inkjet printer includes an ink cup rotationally and slidably coupled to the housing about/along an axis of rotation. The ink cup has a basic plate and a columnar rim around the basic plate. The columnar rim respectively defines a plurality of stopping ratchets and driving ratchets with the same gradient direction at a bottom and top thereof. A moving body is slidably disposed in the housing of the inkjet printer. An actuator movably disposed in the moving body moves together with the moving body, a tail of the actuator stretches out from the moving body for matching with the driving ratchets to rotate the ink cup. A plurality of housing ratchets are disposed in the housing of the inkjet printer and arranged into a ring for matching with the stopping ratchets to prevent the ink cup reversion. | 10-15-2009 |
20090278883 | PRINTER WITH DEBRIS CONTROL APPARATUS - A printer with debris control apparatus which minimizes printer fouling. The printer includes a print head for printing on media, a platen having a side for feeding the media along a path past the print head, and debris control member in contact with the media. | 11-12-2009 |
20090295861 | CONTINUOUS FLUID JET EJECTOR WITH ANISOTROPICALLY ETCHED FLUID CHAMBERS - A fluid ejection device, a method of cleaning the device, and a method of operating the device are provided. The device includes a substrate having a first surface and a second surface located opposite the first surface. A nozzle plate is formed over the first surface of the substrate and has a nozzle through which fluid is ejected. A drop forming mechanism is situated at the periphery of the nozzle. A fluid chamber is in fluid communication with the nozzle and has a first wall and a second wall. The first wall and the second wall are positioned at an angle other than 90° relative to each other. A fluid delivery channel is formed in the substrate and extends from the second surface of the substrate to the fluid chamber. The fluid delivery channel is in fluid communication with the fluid chamber. | 12-03-2009 |
20090315940 | INKJET IMAGE FORMING APPARATUS AND CONTROLLING METHOD THEREOF - An inkjet image forming apparatus including an exposure time of ink attached to nozzles is determined considering various factors including a capping/uncapping time of a print head, a time interval of a powering operation, and a time interval of a printing operation, and then a washing mode to be performed is selected out of a plurality of washing modes with different washing methods in accordance with the exposure time of the ink. Therefore, washing of a print head can be performed more efficiently depending on a condition of ink attached to the nozzles. In addition, a viscosity of the attached ink can be weakened by heating the print head while performing the washing mode. Especially, when washing the print head by an ultrasonic washing mode, a washing energy can be concentrated on a removal of the ink, thereby improving washing efficiency. | 12-24-2009 |
20090315941 | LIQUID DROPLET EJECTING APPARATUS, ELECTRO-OPTICAL DEVICE, METHOD OF MANUFACTURING THE ELECTRO-OPTICAL DEVICE, AND ELECTRONIC APPARATUS - A liquid droplet ejecting apparatus of the present invention includes a cleaning unit, a regular flushing unit, capping unit, and an ejection-amount measuring unit as droplet ejecting head maintenance units used for function maintenance, function recovery, adjustment, or inspection of a liquid ejecting head. The droplet ejecting head maintenance units are arranged in a group in a movable platen as a maintenance-unit installing section. The movable platen is supported by an accessory stand physically separated from a main body. | 12-24-2009 |
20100013888 | Method Of Maintaining Printhead Using Maintenance Roller - A method of maintaining a printhead comprises the steps of: (i) providing a maintenance roller having a contact surface for sealing engagement with the printhead; (ii) moving the roller into a first position in which the contact surface is sealingly engaged with the printhead; (iii) moving the roller into a second position in which the contact surface is disengaged from said printhead; and (iv) rotating the roller such that the contact surface is conveyed away from the printhead. The maintenance roller does not rotate when the contact surface is sealingly engaged with the printhead. | 01-21-2010 |
20100091065 | TRANSLATABLE WEB SUPPORT - A method and apparatus service a print head by translating a first web support relative to a second web support to adjust a length of a web extending between the first support and the second support. | 04-15-2010 |
20100118081 | Dead Volume Removal From An Extrusion Printhead - A micro-extrusion printhead assembly utilized in a micro-extrusion system to form parallel extruded lines on a substrate includes a material feed system for pushing/drawing materials through flow channels and out of extrusion nozzles defined in the printhead assembly. The micro-extrusion printhead includes a layered nozzle structure sandwiched between plate structures, and the flow channels are defined by slots and holes formed in the layered/plate structures. Prior to use, solid forming fluid is passed through the printhead assembly such that the forming fluid occupies dead volumes (e.g., corners and pockets) of the flow channels. The solid forming fluid is then flushed from the flow channels such that portions of the solid forming fluid are retained in the dead volumes. The retained portions are then solidified to form solid structures that fill the dead volumes. In subsequent use, the solid structures prevent stagnation of extrusion material in the dead volumes. | 05-13-2010 |
20100141704 | IMAGE FORMING APPARATUS - An image forming apparatus a plurality of head chip modules including a plurality of head chips, and a plurality of sub covers to cover the plurality of head chip modules individually. Covering the plurality of head chip modules respectively with a plurality of sub covers a significant reduction in evaporation of ink from nozzle parts of the head chips. | 06-10-2010 |
20100149250 | PRINTHEAD ASSEMBLY WITH AIR EXPULSION ARRANGEMENT - A printhead assembly includes an elongate channel member of a metal alloy; a flexible elongate fluid carrier positioned on a floor of the channel member, the fluid carrier defining a plurality of passages longitudinally extending along a length of the fluid carrier, the fluid carrier further defining a repeated pattern of holes on an external surface thereof, the holes providing fluid communication from outside the fluid carrier to respective passages of the fluid carrier; and a series of printhead modules mounted to the external surface of the fluid carrier, each printhead module including an upper micro-molding and a lower micro-molding, the lower micro-molding having an air inlet slot in fluid communication with one of the plurality of passages via a hole of the repeated pattern of holes at one end and a series of alternating air inlets and outlets on the upper micro-molding at an opposite end. Each repeated pattern of holes diagonally spans a width of the fluid carrier, and the repeated pattern of holes together span a length of the fluid carrier. The alternating air inlets and outlets divert air from the air inlet slot to the printhead modules to facilitate cleaning of debris from the printhead modules. | 06-17-2010 |
20100194818 | INKJET PRINTER WITH RECIPROCALLY MOVABLE MAINTENANCE STATION - An inkjet printer comprises a stationary pagewidth inkjet printhead and a printhead maintenance station. The maintenance station comprises a chassis having a maintenance roller and a transfer roller mounted thereon. An engagement mechanism reciprocally moves the chassis towards and away from the printhead such that a contact surface of the maintenance roller is sealingly engaged with or disengaged from the face. A rotation mechanism rotates the maintenance roller only when the maintenance roller is disengaged from the face, and the transfer roller receives ink from the maintenance roller during rotation of the maintenance roller. | 08-05-2010 |
20100214354 | METHOD OF MANUFACTURING INKJET HEAD AND INKJET RECORDING APPARATUS - The method of manufacturing an inkjet head, includes: an opening section forming step of forming, with respect to a SOI substrate having a first silicon layer, a second silicon layer and a first thermal oxide film between the first silicon layer and the second silicon layer, nozzle opening sections passing through the second silicon layer and the first thermal oxide film and reaching the first silicon layer; after the opening section forming step, a first silicon layer removing step of removing the first silicon layer; and after the first silicon layer removal step, a liquid-repellent film forming step of forming a liquid-repellent film on a surface of the first thermal oxide film that has been exposed in the first silicon layer removal step. | 08-26-2010 |
20100220143 | Mitigation of Fluid Leaks - A fluid ejector head includes a die with a plurality of fluid ejector units, each fluid ejector unit comprising a pumping actuator having a drive electrode, and a manifold that contacts the first side of the die to define a module volume in fluidic communication with a drainage volume. The module volume is defined in part between the manifold and at least a portion of plurality of fluid ejector units, and the drainage volume is located apart from the fluid ejector units. The module volume, in comparison to the drainage volume, has a greater ratio of interior surface area to volume or has a greater percentage of interior surface area covered by a non-wetting coating. | 09-02-2010 |
20100238233 | INK JET PRINTHEAD CARTRIDGE HAVING AN INK FILL ACCESS PORT IN FLUID COMMUNICATION WITH THE FILTER TOWER - An ink jet printhead cartridge includes a cartridge body including a base and a plurality of side walls extending upwardly from the base. A filter tower having a tower wall has an interior surface that defines a location of a tower passageway. A printhead chip assembly is attached to the base of the cartridge body in fluid communication with the tower passageway. A filter is attached to the filter tower at a distal end thereof. An ink fill access port is formed through a side wall of the plurality of sidewalls, and through the tower wall of the filter tower, to define a fluid path from the atmosphere external to the cartridge body to the tower passageway of the filter tower to facilitate the injection of ink directly into the filter tower during an ink filling operation for the ink jet printhead cartridge. | 09-23-2010 |
20100253736 | Inkjet Printhead Incorporating Ink Spillage-Containment Gaps - A printhead is provided for an inkjet printer. The printhead includes a substrate assembly defining rows of ink inlet channels. Rows of nozzle arrangements are disposed on the substrate assembly and include rows of nozzles defining nozzle chambers in fluid communication with respective ink inlet channels. The nozzle arrangements include respective actuators arranged in rows which are configured to eject ink from corresponding nozzles. Ink spillage-containment gaps are defined between respective adjacent rows of nozzle arrangements. | 10-07-2010 |
20100253737 | PRINTHEAD MAINTENANCE ASSEMBLY FOR INKJET PRINTER - A printhead maintenance assembly for an inkjet printer includes a movable chassis arranged in a housing; an endless belt mounted on the chassis, the endless belt having a contact surface reciprocally movable between a first position in which the contact surface is engaged with the printhead and a second position in which the contact surface is disengaged from the printhead; a pair of spools mounted on the chassis and on which the belt is mounted, one of the spools being a toothed drive spool and the other being an idler spool; a drive gear driven by a drive motor and engaged with the drive spool, the drive gear, the drive spool, and the drive motor forming a conveyor mechanism for conveying the belt in a direction substantially parallel with a longitudinal axis of the printhead; and a cleaning station mounted on the chassis and positioned to clean the belt as the belt moves past. The contact surface is sloped with respect to the printhead | 10-07-2010 |
20110007111 | INKJET PRINTER AND INKJET PRINT METHOD - The present invention provides an inkjet printer and an inkjet printing method, which enable an ink that overflowed to the outside from the edge of a printing medium to be fully absorbed by a platen. More specifically, the present invention provides an inkjet printer, comprising a platen, which absorbs a pigment ink that overflows to the outside of a printing medium when edgeless printing is carried out on the printing medium by using an ink that employs a pigment as a colorant, moving a printing head along a guide shaft, and ejecting the pigment ink from the printing head, and also an inkjet printing method, wherein the platen is impregnated with a humecant, a base, and the like. | 01-13-2011 |
20110018930 | FEED SLOT PROTECTIVE COATING - An apparatus and method provide a protective coating ( | 01-27-2011 |
20110050793 | Liquid Ejecting Apparatus - A liquid ejecting apparatus that includes liquid ejecting heads ejecting a liquid includes: a supply passage permitting a tank storing the liquid to communicate with the plurality of liquid ejecting heads and supplying the liquid from the tank to the liquid ejecting heads; and a circulation passage permitting the liquid ejecting heads to communicate with the tank and circulating the liquid from the liquid ejecting heads to the tank. The plurality of liquid ejecting heads eject the liquid, while circulating the liquid along a path from the tank to the plurality of liquid ejecting heads via the supply passage and the circulation passage. A passage resistance of the circulation passage is set to be smaller than a passage resistance of the supply passage. | 03-03-2011 |
20110050794 | Liquid Ejecting Apparatus and Method of Cleaning Liquid Ejecting Head of Liquid Ejecting Apparatus - A liquid ejecting apparatus provided with N (N≧2) liquid ejecting heads which eject liquid, the liquid ejecting apparatus including a supply path through which liquid is supplied from a tank to the N liquid ejecting heads, a circulation path through which liquid is returned from the liquid ejecting heads to the tank, N opening and closing valves that are installed for each liquid ejecting head on at least one of the supply path and the circulation path, and a liquid sending unit that applies a force sending the liquid from the tank toward the liquid ejecting heads. M opening and closing valves corresponding to M (M03-03-2011 | |
20110069113 | LIQUID EJECTING APPARATUS - A liquid ejecting apparatus includes a liquid ejecting head which ejects liquid containing metallic particles from a nozzle with respect to a target, the liquid ejecting head being disposed so that the nozzle opens facing a direction higher than a horizontal direction, and ejects the liquid from the nozzle facing the direction higher than the horizontal direction, thereby attaching the liquid to the target. | 03-24-2011 |
20110090280 | PRINTHEAD MAINTENANCE FACILITY HAVING FLUID DRAINAGE - A printhead maintenance facility is provided having a storage reservoir for storing fluid ejected by a printhead and a core movable relative to the printhead. The has an internal structure defining the storage reservoir and having a port in fluid communication with the storage reservoir, and an external structure movable relative to the internal structure and having a drain movable into registration with the port to establish fluid communication between the drain and storage reservoir. | 04-21-2011 |
20110128320 | INK RECEIVING DEVICE FOR INK JET PRINTER - An ink receiving device C for an ink jet printer includes: an ink receptacle which receives ink discharged from nozzles of ink jet heads; and a support member which supports the ink receptacle in a manner to enable the ink receptacle to move horizontally. The ink receptacle is enabled by the support member to move horizontally to three positions including: a standby position at which the ink receptacle does not disturb the ink jet heads from printing on a print medium; an ink receiving position which is below the ink discharging surfaces of the ink jet heads and at which the ink receptacle receives ink discharged for a purpose other than printing; and a maintenance position which is different from the ink receiving position and the standby position and at which a maintenance work of the ink receptacle is performed. | 06-02-2011 |
20110134183 | IMPROVEMENTS IN OR RELATING TO CONTINUOUS INKJET PRINTERS - The invention describes a gutter for incorporation in the print head of a continuous inkjet printer. The gutter, which is preferably provided with a slot entrance, is configured to reflect ink droplets which pass into the gutter off the gutter walls and towards the exit passage of the gutter. This arrangement allows the gutter to perform extremely well even when there is significant mis-alignment of the drop generator with the gutter. | 06-09-2011 |
20110148981 | DETECTING AND REMOVING FIBERS - In one embodiment, a method to detect and remove fibers comprises identifying blocked nozzles in a grouping of nozzles within a printhead, and triggering a fiber removal event if it is determined that a plurality of adjacent nozzles are blocked. | 06-23-2011 |
20110199421 | CIRCUIT BOARD FOR INK JET HEAD, INK JET HEAD HAVING THE SAME, METHOD FOR CLEANING THE HEAD AND INK JET PRINTING APPARATUS USING THE HEAD - 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. | 08-18-2011 |
20110221821 | IMAGE FORMING APPARATUS - Disclosed is an image forming apparatus that includes plural recording heads that eject liquid droplets and plural maintenance units that correspond to the plural recording heads. The plural maintenance units are capable of separately moving between opposed positions opposed to the plural recording heads and retracted positions not opposed to the plural recording heads, and the plural maintenance units are retracted into the retracted positions in postures different from postures at the opposed positions. | 09-15-2011 |
20110227997 | Printer Used with Rolled Sheet - In a printer, a first section is sized to accommodate a rolled sheet therein. A printing head is horizontally movable along a moving path extending in a first direction and operable to perform printing on a part of the rolled sheet which is drawn out from the first section. A second section is provided on a first side of the first section relative to the first direction. A third section is provided on a second side of the first section relative to the first direction opposite to the first side. A control board on which a circuit operable to control an operation of the printer is mounted is disposed in the first section so as to extend vertically. An ink supplying member is disposed in the third section that supplies ink to the printing head. The moving path is longer than a dimension of the first section in the first direction. | 09-22-2011 |
20110234691 | PAGEWIDTH PRINTHEAD MAINTENANCE FACILITY HAVING FLUID DRAINAGE - A printhead maintenance facility is provided having a storage reservoir for storing fluid ejected by a printhead, and a core movable relative to the printhead. The core has an internal structure defining the storage reservoir and having a port in fluid communication with the storage reservoir, and an external structure movable relative to the internal structure and having a drain movable into registration with the port to establish fluid communication between the drain and storage reservoir. The printhead is pagewidth and the internal and external structures are at least as long as the pagewidth. | 09-29-2011 |
20110249059 | INKJET DRAWING APPARATUS - An inkjet drawing apparatus includes a head module which holds a droplet jetting head provided with a nozzle for ejecting droplets, and which is unmovable in a horizontal direction, and a drawing table which supports a recording member on an upper surface, and which is movable in the horizontal direction. The inkjet drawing apparatus executes a prescribed drawing by ejecting the droplets onto the recording member from the droplet jetting head. A maintenance unit transfer mechanism is movable within a prescribed region including a position under the head module, and transfers a maintenance unit for conducting a maintenance of the droplet jetting head toward the position under the head module, and executes positioning of the maintenance unit with respect to the droplet jetting head. A maintenance unit selecting/arranging mechanism selects one of a plurality of kinds of maintenance units, and places the selected maintenance unit on the maintenance unit transfer mechanism. | 10-13-2011 |
20110254893 | LIQUID EJECTING APPARATUS - The invention provides a liquid ejecting apparatus which can prevent a target having liquid ejected thereon from warping irrespective of the type of the target. An ink jet printer includes a recording head configured to eject ink from a nozzle formed on a nozzle-formed surface onto a recording sheet being transported from an upstream side to a downstream side, and a plurality of supporting belts arranged so as to oppose the nozzle-formed surface and each having a supporting portion extending along the direction of transport of the recording sheet. The respective supporting belts are arranged so as to be capable of moving along the width direction intersecting the direction of transport of the recording sheet. | 10-20-2011 |
20110273510 | PRINTING APPARATUS - A plurality of recording head units are supported by a holder in an integrated manner. The recording head units and pairs of rollers which hold a sheet are arranged alternately along a sheet conveying direction. An elastic member is disposed in a clearance between the holder and each of the recording head units supported by the holder in an elastically deformed manner to form an airtight seal. The airtight seal prevents upward leakage, from the clearance, of the humidifying gas introduced into the narrow space to which ink nozzles of the recording head units are exposed. | 11-10-2011 |
20110279518 | APPARATUS FOR ASSISTING PRINTING HAVING PROXIMAL WICK - A printing assistance apparatus for a media width printhead, the apparatus having: an elongate platen having a surface for supporting media across the media width during printing on the media by fluid ejection nozzles of the printhead; and a wick element positioned within the platen for wicking fluid ejected by the nozzles from the supporting surface, the wick element having an elongate body positioned within the platen and a plurality of pads projecting from the body along the longitudinal length body toward the printhead, the pads being separated by notches. | 11-17-2011 |
20110285782 | Apparatus for cleaning inkjet print head and inkjet printer having the same - There is provided an apparatus for cleaning an inkjet print head and an inkjet printer having the same. The apparatus for cleaning the inkjet print head includes a cleaning plate spaced apart from the inkjet print head with a cleaning area interposed therebetween, the inkjet print head ejecting ink through a nozzle; an electrode part allowing residual ink remaining at an end portion of the nozzle to be moved outwardly of the cleaning plate; and a power supply part electrically connecting the inkjet print head to the electrode part. | 11-24-2011 |
20120001982 | Mitigation of Fluid Leaks - A fluid ejector head includes a die with a plurality of fluid ejector units, each fluid ejector unit comprising a pumping actuator having a drive electrode, and a manifold that contacts the first side of the die to define a module volume in fluidic communication with a drainage volume. The module volume is defined in part between the manifold and at least a portion of plurality of fluid ejector units, and the drainage volume is located apart from the fluid ejector units. The module volume, in comparison to the drainage volume, has a greater ratio of interior surface area to volume or has a greater percentage of interior surface area covered by a non-wetting coating. | 01-05-2012 |
20120013679 | APPARATUS FOR CLEARING AN INK DROP STALAGMITE IN AN INKJET PRINTER - An apparatus for use as part of an inkjet printer to clear an ink drop stalagmite in the printer. In one embodiment the apparatus includes a clearing device coupled to an access door of the inkjet printer, wherein upon operation of the access door the clearing device at least partially clears the ink drop stalagmite. | 01-19-2012 |
20120019589 | HARD IMAGING DEVICES AND HARD IMAGING METHOD - Hard imaging devices and methods are described. According to one arrangement, a hard imaging device includes a media transport system configured to move media along a media path and a print device adjacent to the media path and configured to eject a plurality of droplets of a liquid marking agent in a direction towards the media moving along the media path to form hard images using the media. The ejection of the droplets of the liquid marking agent by the print device creates satellites of the liquid marking agent suspended in air in a region adjacent to the print device and the media. The device also includes a satellite removal system in one arrangement to remove the satellites from the air in the region adjacent to the print device and the media. | 01-26-2012 |
20120105537 | CIRCUIT BOARD FOR INK JET HEAD, INK JET HEAD HAVING THE SAME, METHOD FOR CLEANING THE HEAD AND INK JET PRINTING APPARATUS USING THE HEAD - 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. | 05-03-2012 |
20120120150 | LIQUID EJECTION DEVICE - A liquid ejection device includes: a support member configured and arranged to support a conveyed medium conveyed in a predetermined direction; a liquid ejection head having an ejection surface facing the support member with the ejection surface having a plurality of nozzles for ejecting a liquid onto the conveyed medium; and a protecting member provided between the ejecting surface and the conveyed medium, arranged in a position fixed relative to the support member, and having an open part that allows passage of the liquid ejected from the liquid ejection head. | 05-17-2012 |
20120147088 | INKJET DEVICE AND SEALING METHOD FOR THE INKJET DEVICE - According to one embodiment, an inkjet device includes: an inkjet head; an armor section configured to surround the periphery of the inkjet head; a first gap formed over the entire periphery in the peripheral direction in a plurality of the armor sections; and a seal body for forming a surface tension seal by fluid in a second gap arranged in the first gap to form a gap narrower than the first gap. | 06-14-2012 |
20120154482 | Print Head Maintenance Manifold System - A print head maintenance manifold assembly is disclosed. The maintenance manifold assembly includes a multitude of hoses and a manifold coupled to the hoses via fittings. The manifold includes a first set of fittings and small diameter hoses coupled to print heads at a first section of the manifold and a second set of fittings and hoses coupled to a vacuum source at a second section of the manifold. | 06-21-2012 |
20120162309 | PARTICLE REMOVAL DEVICE FOR INK JET PRINTER - A particle removal device for an ink jet printer is discussed. The particle removal device includes a first separator comprising an arrangement of obstacles including at least two rows of obstacles that extend laterally with respect to a flow path of ink in the first separator. The rows of obstacles are offset from one another by a row offset fraction. The arrangement of obstacles is configured to preferentially route larger particles having diameters greater than a critical diameter through the arrangement and along a first trajectory vector that is angled with respect to the direction of the flow path of the ink. The angle of the first trajectory vector with respect to the ink flow path is a function of the row offset fraction. Smaller particles having diameters less than the critical diameter travel through the arrangement along a second trajectory vector that is not substantially angled with respect to the flow path of the ink. The first separator causes a pressure drop of the ink of less than about 100 Pa. | 06-28-2012 |
20120169809 | LIQUID EJECTING APPARATUS - The present invention relates to a liquid ejecting apparatus including a liquid ejecting head including a plurality of nozzles that eject a liquid, a liquid receiving unit that receives the liquid that is ejected from the nozzles on the liquid ejecting head while having a deformable sheet-like member fixed thereto, and a deforming unit that deforms the sheet-like member. | 07-05-2012 |
20120194603 | RECORDING APPARATUS - A recording apparatus, including: an endless belt having first and second areas each defined by two rollers and looped over rollers including at least one tension roller and at least one drive roller; a recording head opposed to the first area; and a first cleaning member, wherein, in a cleaning mode in which the first cleaning member cleans the belt, a controller is configured to have the first cleaning member be held in contact with the second area and to drive at least one of the at least one drive roller such that the second area is located on a downstream side of the at least one tension roller and on an upstream side of the at least one of the at least one drive roller in a running direction of the belt. | 08-02-2012 |
20120194604 | LIQUID EJECTION APPARATUS AND METHOD FOR REPLACING HUMIDIFICATION-LIQUID TANK OF THE APPARATUS - 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. | 08-02-2012 |
20120194605 | LIQUID EJECTION APPARATUS AND NONVOLATILE STORAGE MEDIUM STORING PROGRAM - 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. | 08-02-2012 |
20120218344 | Water-Based Ink for Ink-Jet Recording, Ink Cartridge, Ink-Jet Recording Method, Method for Preventing Corrosion of Metal Member, Method for Producing Water-Based Ink for Ink-Jet Recording, and Ink-Jet Recording Apparatus - There is provided a water-based ink for ink-jet recording including: a self-dispersible carbon black modified by carboxylic acid group; water; and a water-soluble organic solvent, wherein oxalate ion is contained in the water-based ink in a amount of not more than 45 ppm by weight. | 08-30-2012 |
20120306963 | IMAGE FORMING APPARATUS - The present invention provides an image forming apparatus including: a print head, including nozzle heads, configured to discharge ink droplets upward and movable between an image forming area in which images are formed on a recording medium and an idle discharge area in which idle discharge of the ink droplets is performed to clean the nozzles; an endless belt ink receiving member, disposed above the print head in the idle discharge area in which the print head performs idle discharge and configured to hold the idly-discharged ink; an ink receiving member driver operatively connected to the ink receiving member to circularly drive the ink receiving member; and a cleaner disposed downstream of the idle discharge area in the direction of rotation of the ink receiving member and configured to remove the ink from the ink receiving member. | 12-06-2012 |
20120306964 | Water-based Ink for Inkjet Recording, and Method and Apparatus for Inkjet Recording Using the Same - A water-based ink for inkjet recording is provided with color material, binder resin, surfactant, and water-based solvent, wherein when the ink is heated, 1) a viscosity of the ink is more than 10 mPa·s and 30 mPa·s or less, the viscosity being measured over the ink weight change rate range of 0% to 10%; 2) a viscosity of the ink is 200 mPa·s at any one of the ink weight change rate within 35% or more and 55% or less, the viscosity being measured by the E-type viscometer at 25° C. and 1 rpm; and 3) a surface tension at 25° C. of the ink at the ink weight change rate of 5% is lower than a surface tension at 25° C. of the ink at the ink weight change rate of 0%. | 12-06-2012 |
20130033541 | MOVABLE SPITTOON PLATFORM - Embodiments of the present disclosure include systems and methods of handling ink using a movable spittoon platform. A frame defines at least a reservoir portion and a side wall protrusion adjacent the reservoir portion. A shuttle includes a platform slidably movable between a first position, in which the platform is biased to extend outwardly from an end portion of the shuttle, and a second position, in which the platform becomes retracted relative to the end portion of the shuttle. The shuttle is slidably movable relative to the frame toward the spittoon portion wherein, upon releasable contact of the platform against the protrusion, the platform moves from the first portion into the second portion to scrape ink off the platform into the reservoir portion below the shuttle. | 02-07-2013 |
20130100199 | INK JET PRINTING APPARATUS AND MAINTENANCE METHOD - Even when a pressurizing operation is performed, degradation of the quality of a printing head due to wiping of a nozzle surface is suppressed. In an ink jet printing apparatus including a printing head, an ink tank, a first pump arranged in an ink supplying path for supplying ink from the ink tank to the printing head, a second pump arranged in an ink collecting path for collecting ink from the printing head to the ink tank, a switch valve arranged between the printing head and the second pump, and a cleaning mechanism, by driving the first pump in a state where the switch valve is closed, the ink is discharged from the nozzle row, and after driving of the second pump in a state where the switch valve is opened, the cleaning mechanism is caused to clean the printing head. | 04-25-2013 |
20130187978 | LIQUID EJECTION APPARATUS - A liquid ejection apparatus includes a liquid ejecting head having a head body that ejects liquid from nozzle openings and a flow path member that includes a liquid flow path through which the liquid is supplied to the head body, the liquid flow path being provided with a filter chamber disposed at a position in the liquid flow path with a filter disposed inside the filter chamber, and a portion of the filter chamber which opposes the filter being made of an elastic member; a pressing unit that presses the elastic member toward the filter; and a suction unit that suctions the liquid in the liquid flow path from the nozzle openings. | 07-25-2013 |
20130194345 | CLEANING FILLING LIQUID, CARTRIDGE, CLEANING FILLING METHOD, AND INKJET RECORDING DEVICE - A cleaning filling liquid for inkjet device comprising: Water; 10.0% by mass to 45% by mass per whole amount of the cleaning filling liquid of an amide compound having following structural formula (1). | 08-01-2013 |
20130235120 | STRUCTURE BODY HAVING LIQUID-REPELLENT SURFACE, NOZZLE PLATE OF INKJET HEAD, AND METHOD OF CLEANING STRUCTURE BODY AND NOZZLE PLATE - A structure body has a liquid-repellent surface exhibiting repellency to a liquid. The structure body includes: a substrate which has a base surface; and a plurality of projections which are arranged on the base surface of the substrate. The projections have a characteristic angle defined as an angle between a lateral surface of each of the projections and a plane that intersects with the lateral surface and is parallel to the base surface, the angle being taken inside the projection on the lateral surface and in a side of the base surface on the plane. The characteristic angle of the projections is smaller than 90° and is smaller than a reference angle that is separately determined as a static contact angle of the liquid with respect to a reference surface that is smooth and has a chemical state identical to a chemical state of the lateral surface of the projection. | 09-12-2013 |
20130293630 | Printhead Module - A printhead module includes a substrate and a head mount. The substrate includes a bottom surface having a plurality of nozzles formed therein and a top surface on a side of the substrate opposite the bottom surface. The substrate includes a plurality of actuators. Each actuator of the plurality of actuators is configured to cause a fluid to be ejected from a nozzle of the plurality of nozzles. The head mount is secured to the substrate and extends over the top surface of the substrate. The head mount includes a first side surface extending upwardly from the bottom surface and a groove formed in the first side surface. The groove is sized and shaped to cause fluid on the first side surface to be drawn by capillary action into the groove. | 11-07-2013 |
20140028754 | METHOD OF OPERATING INKJET PRINTHEAD IN PRINTING AND MAINTENANCE MODES - A method of operating an inkjet printhead having a plurality of ink chambers, each ink chamber including a heater element for generating a bubble and causing ejection of ink droplets from a nozzle defined in the ink chamber. The method includes the steps of: operating the printhead in a normal printing mode whereby relatively shorter drive pulses are delivered to the heater elements to eject ink droplets used in normal printing; and operating the printhead in a maintenance mode whereby relatively longer drive pulses are delivered to the heater elements. The relatively longer drive pulses generate high impulse bubbles for recovering nozzles affected by decap. | 01-30-2014 |
20140104342 | LIQUID EJECTION DEVICE - A liquid ejection device includes a head, a liquid-receiving face and a flushing box. The head is configured and arranged to eject a liquid. The liquid-receiving face is configured and arranged to receive the liquid ejected from the head when flushing is carried out by the head. The flushing box is configured and arranged to receive the liquid deposited on the liquid-receiving face and dripped from the liquid-receiving face. | 04-17-2014 |
20140118437 | Liquid Ejecting Head and Liquid Ejecting Apparatus - A seal member includes a communication hole that makes a holder flow path communicate with a connection flow path in a state of the seal member being nipped between a holder projection and a connection projection, a holder-side fitting recess that fits onto the outer circumferential surface of the holder projection and also fits to a leading end portion of the holder projection, a connection member-side fitting recess that fits onto the outer circumferential surface of the connection projection and also fits to a leading end portion of the connection projection, and a recessed groove that is hollowed in the bottom of the holder-side fitting recess or the bottom of the connection member-side fitting recess along the inner circumferential surface of the holder-side fitting recess or the connection member-side fitting recess. | 05-01-2014 |
20140132663 | IMAGE FORMING APPARATUS - An image forming apparatus including a recording head having a nozzle to discharge droplets; a reciprocally moving carriage on which the recording head is mounted; a rotary conveyance body disposed opposite the recording head and configured to convey a recording medium; a maintenance unit to maintain an optimal state of the recording head; and a drive transmission unit to transmit rotation of the rotary conveyance body to the maintenance unit. The drive transmission unit includes a drive transmission gear to drive the maintenance unit; and a gear moving unit. The gear moving unit includes moving means to move the drive transmission gear at the connection position; and a retainer to retain a state in which the drive transmission gear is moved to the connection position, even though the carriage is moved toward a second direction opposite the first direction. | 05-15-2014 |
20140176636 | IMAGE RECORDING DEVICE - An image recording device is provided with: a first guide mechanism for guiding the movement of a print head between an image recording position and a maintenance-receiving position, which is a position different from a support member in a second direction orthogonal to a first direction in which the print head at the image recording position and the support member face each other; and a second guide mechanism for guiding the movement of a maintenance unit between a withdrawn position for separating away from the print head in a third direction, which is a direction orthogonal to the second direction, in relation to the print head at the maintenance-receiving position, and a maintenance position for drawing nearer to the print head than the withdrawn position. | 06-26-2014 |
20140198152 | LIQUID EJECTING APPARATUS AND METHOD FOR DETECTING FOREIGN MATTER - A liquid ejecting apparatus includes: a transportation section that transports a medium in a transportation direction; a head that ejects the liquid on the medium; a support member that supports the medium which is in a position facing the head while abutting a surface of one side of the medium; a heat source that is disposed in a position facing the support member; an abutting member that abuts the surface of the one side of the medium on an upstream side from the support member in the transportation direction; and a detection section that detects presence or absence of the foreign matter on a surface of the other side of the medium in an area of the medium which abuts the abutting member. | 07-17-2014 |
20140292905 | LIQUID EJECTING HEAD UNIT AND LIQUID EJECTING APPARATUS - A liquid ejecting head unit includes a plurality of heads having a nozzle surface in which nozzle openings that eject ink are provided; a cover head that protects the nozzle surfaces of the heads, and a cover that covers the heads and between the nozzle surfaces of each head, in which the cover has a conducting portion that conducts with the cover head of the head. | 10-02-2014 |
20140333697 | RECORDING DEVICE AND METHOD FOR CONTROLLING RECORDING DEVICE - A recording device includes a platen, a recording head, a carriage and a cleaning unit. The platen supports a roll paper. The recording head ejects liquid onto the roll paper on the platen. The carriage supports the recording head. The cleaning unit is installed apart from the platen in a transport direction of the roller paper. The carriage transports the recording head in a direction parallel to the transport direction of the roll paper supported on the platen when the cleaning unit cleaning the recording head. | 11-13-2014 |
20150085011 | IMAGE RECORDING DEVICE - An image recording device includes a support member, a print head, a guide mechanism and a maintenance unit. The print head is configured to eject a liquid from a nozzle at a first position facing the support member. The guide mechanism is configured to guide movement of the print head among the first position, a second position, and a third position. The maintenance unit is configured to carry out maintenance on the print head which is located at the second position, the maintenance unit being arranged at a position facing the print head which is located at the second position. The third position is a position farther than the second position with respect to the first position in a direction going from the support member toward the maintenance unit in the orthogonal direction. | 03-26-2015 |
20150097894 | IMAGE FORMING APPARATUS - An image forming apparatus includes a recording head, an ejection detector, a cleaner and cleaning ejection controller. The ejection detector has a droplet landing member disposed in an area in which the droplet landing member faces the head. The ejection detector detects ejection or non-ejection by detecting electric change caused by landing of the droplets on the droplet landing member. The cleaner cleans a droplet landing surface of the droplet landing member. The cleaning ejection controller controls the recording head to eject droplets on the droplet landing surface for cleaning the droplet landing surface before cleaning the droplet landing surface by the cleaner. A quantity of the droplets for cleaning the droplet landing surface is greater than a quantity of the droplets for detecting ejection or non-ejection. | 04-09-2015 |
20150130872 | LIQUID EJECTING APPARATUS AND MAINTENANCE METHOD - A liquid ejecting apparatus includes: a liquid ejecting section in which a nozzle capable of ejecting liquid is provided; a supply flow path that supplies the liquid to the nozzle; a pressurizing mechanism that discharges the liquid from the nozzle by pressurizing the liquid inside the supply flow path; and a pressure reducing mechanism that discharges the liquid from the nozzle by reducing a pressure of a space communicating with a side opposite to a side of the supply flow path of the nozzle. In a maintenance operation discharging the liquid from the nozzle by driving at least one of the pressurizing mechanism and the pressure reducing mechanism, the last discharging operation of the maintenance operation is performed by driving the pressurizing mechanism from a state where the negative pressure is caused to act on the inside of the nozzle by driving the pressure reducing mechanism. | 05-14-2015 |
20150314601 | FLUID EJECTION DEVICE WITH PARTICLE TOLERANT LAYER EXTENSION - In an embodiment, a fluid ejection device includes a thin-film layer formed over a substrate. A primer layer is formed over the thin-film layer, and a chamber layer is formed over the primer layer that defines a fluidic channel leading to a firing chamber. The fluid ejection device includes a slot that extends through the substrate and into the chamber layer through an ink feed hole in the thin-film layer. The fluid ejection device also includes a particle tolerant extension of the primer layer that protrudes into the slot. In some implementations, the particle tolerant primer layer extension extends across a full width of the slot. | 11-05-2015 |
20150314602 | IMAGE RECORDING DEVICE - An image recording device includes a support member, a print head, a maintenance unit, a first guide mechanism and a second guide mechanism. The first guide mechanism is configured to guide movement of the print head between the image recording position and the maintenance-receiving position. The second guide mechanism is configured to guide movement of the maintenance unit between a withdrawn position for separating away from the print head and a maintenance position for drawing nearer to the print head than the withdrawn position while the maintenance unit faces the print head disposed at the maintenance-receiving position. A surface of the maintenance unit facing the print head when the maintenance unit is at the withdrawn position is disposed farther away from the print head in a movement direction of the maintenance unit than a portion of the support surface that is disposed closest to the print head. | 11-05-2015 |
20160001560 | METHOD OF CLEANING LIQUID DISCHARGE HEAD - A method of cleaning a liquid discharge head having a substrate provided with a supply port, a heat-generating resistor covered with a covering layer, a liquid chamber forming member configured to form a liquid chamber, and at least one electrode and being configured to discharge liquid supplied to the liquid chamber from the supply port by causing the heat-generating resistor to generate heat, includes applying a voltage to the covering layer and the electrode to cause an electrochemical reaction between the covering layer and the liquid and dissolve the covering layer into the liquid to remove kogations accumulated on the covering layer, in which the covering layer and the electrode to which the voltage is to be applied are not provided in the same liquid chamber having the same cross-sectional area in a direction from the covering layer toward the electrode. | 01-07-2016 |
20160031217 | FLUID EJECTION DEVICE - Suspension or deposition of ink mist is suppressed. | 02-04-2016 |
20160107447 | PRINTING MACHINE - A printing machine has a printing unit which has a printing-material conducting element that can be rotated about an axis of rotation defining an axial direction and at least four printing heads. Four positioning devices are arranged, by the use of each of which, at least one printing head can be arranged at least either in a respective printing position associated with the printing head or in a respective idle position associated with a printing head. At least one first printing head of the printing heads can be arranged either in a first printing position associated with that first printing head or in a first idle position associated with that first printing head. At least one second printing head of the printing heads can be arranged at least either in a second printing position associated with that second printing head or in a second idle position associated with that second printing head. Each respective idle position is configured as a respective maintenance position, in which a maintenance device configured as a cleaning device is or can be associated with at least one nozzle of the respective printing head. The maintenance device is arranged in such a way that the maintenance device can be moved along a provision path at least partially orthogonally to the axial direction. | 04-21-2016 |
20190143694 | PRINTHEAD MAINTENANCE APPARATUS | 05-16-2019 |