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Discharge means

Subclass of:

347 - Incremental printing of symbolic information

347001000 - INK JET

347020000 - Ejector mechanism (i.e., print head)

Patent class list (only not empty are listed)

Deeper subclasses:

Class / Patent application numberDescriptionNumber of patent applications / Date published
347047000 Nozzles 329
347045000 Surface treated 65
347046000 Free surface 5
20080284820Highly-Efficient Ultrasonic Ink-Jet Head and Fabrication Method of for the same - A highly-efficient ultrasonic wave ink-jet head includes a piezoelectric transducer and a Fresnel lens provided on a supporting layer. A chamber structure is fabricated on the supporting layer by lithography etching, and further bonded with an ink-storing groove to form an ink-jet head. The design provides a total reflection of ultrasonic waves generated on the opposite side of the piezoelectric transducer through the deviation of acoustic impedance of ultrasonic waves at different media. The sound energy of the ultrasonic wave can be effectively reused. Moreover, the phase of the reflected ultrasonic wave is consistent with that of the direct ultrasonic wave generated by the piezoelectric transducer. This forms a highly-efficient ultrasonic wave ink-jet head.11-20-2008
20090002446ACOUSTIC FLUID FLOW DEVICE FOR PRINTING SYSTEM - A printing system includes a liquid drop ejector, a fluid passage, and a fluid flow source. The liquid drop ejector is operable to form liquid drops having a plurality of volumes moving along a first path. The fluid passage includes a wall. A source of acoustic energy is associated with the wall. A fluid flow source is associated with the passage and is configured to provide a fluid flow through the passage. Interaction of the fluid flow and the liquid drops causes liquids drops having one of the plurality of volumes to begin moving along a second path.01-01-2009
20090096833MULTICOLOR THERMAL IMAGING METHOD AND THERMAL IMAGING MEMBER FOR USE THEREIN - Described herein are methods, devices and reagents for direct thermal imaging and, more particularly, for multicolor direct thermal imaging, wherein a direct thermal imaging member comprising different image-forming compositions is imaged at different speeds by a source of heat to form a multicolored image.04-16-2009
20100149263SYSTEM AND METHOD FOR ACOUSTIC EJECTION OF DROPS FROM A THIN LAYER OF FLUID - Features described herein relate to ejecting drops from a thin layer of fluid. Piezoelectric elements can generate a uniform high acoustic field, which is transferred through a segmented metal support structure and an acoustic horn. The sound waves generate capillary waves on a thin layer of fluid on a top surface of the acoustic horn. At sufficiently high amplitudes, the capillary waves begin to break apart, resulting in the ejection of drops from the thin layer of fluid.06-17-2010
20110181663Focus-Activated Acoustic Ejection - To ejecting a droplet from a reservoir, the reservoir holding a fluid is moved with respect to an acoustic ejector. As the reservoir and ejector move closer together, the acoustic ejector sends one or more interrogation pulses towards the reservoir. Based on the interrogation pulses, the system determines when the movement of the reservoir has placed a free surface of the fluid in a position where a droplet can be ejected.07-28-2011
Entries
DocumentTitleDate
20130044162SUPEROLEOPHOBIC GLASS DEVICES AND THEIR METHODS - Various embodiments provide materials and methods for a superoleophobic device, which can include a conformal oleophobic coating disposed on glass pillars and/or stripe-shaped glass structures on a glass substrate to provide the device with a textured superoleophobic surface.02-21-2013
20100149259UV-CURABLE COATINGS AND METHODS FOR APPLYING UV-CURABLE COATINGS USING THERMAL MICRO-FLUID EJECTION HEADS - An aqueous-based UV-curable fluid composition for use in a micro-fluid ejection device. The fluid composition includes a mixture of poly-functional compounds, a colorant compound, a photo-initiator and less than about 50 weight percent water based on a total weight of the fluid composition, wherein the fluid composition is substantially devoid of volatile organic carrier fluids.06-17-2010
20100073427Printhead micro-electromechanical nozzle arrangement with motion-transmitting structure - A micro-electromechanical nozzle arrangement for a printhead integrated circuit featuring a nozzle chamber capped by an ink ejection port includes a paddle located in the nozzle chamber below the ink ejection port; an actuator arm having a fixed end fixed to the substrate and a working end displaceable towards and away from the substrate; and a motion transmitting structure interconnecting the working end of the actuator arm and a proximal end of the paddle. The actuator arm and the paddle are formed of the same material.03-25-2010
20100073426PRINTHEAD WITH NOZZLES HAVING INDIVIDUAL SUPPLY PASSAGES EXTENDING INTO SUBSTRATE - An inkjet printhead has a wafer substrate with a droplet ejection side and a liquid supply side opposite the droplet ejection side. Drive circuitry layers are formed on the droplet ejection side of the wafer substrate. An array of nozzles is formed on the droplet ejection side of the wafer substrate, each nozzle having a drop ejection actuator and an associated drop ejection aperture for ejecting drops of liquid. Ducting extends from the liquid supply side into the wafer substrate and terminating before reaching the droplet ejection side. Liquid inlets establish fluid communication between the ducting and the array of nozzles.03-25-2010
20100073425INK JET RECORDING HEAD AND MANUFACTURING METHOD THEREFOR - The present invention provides an ink jet recording head comprises a support member that has an opening used for ink supply and that is formed of a resin material, a recording element board that has an ink support port that communicates with the opening, and a wall that at least partially contacts a peripheral side face of the recording element board that is bonded to the support element, wherein the wall is formed on the support member surrounding the opening, and is used to position the recording element board, relative to the support member, in a direction in which contact is made by the wall.03-25-2010
20110310179INKJET PRINTER, INKJET HEAD, AND PRINTING METHOD - To suitably use a metallic ink or a pearl-colored ink in an inkjet printer. Furthermore, to suitably use an ink containing a large-sized pigment in the inkjet printer.12-22-2011
20130038664INK COMPOSITION, RECORDING UNIT AND INK JET RECORDING APPARATUS USING THE SAME, AND RECORDED MATERIAL - An aspect of the invention provides an ink composition ejected from a nozzle having a step, the ink composition containing at least any one of a first water-soluble organic solvent and a second water-soluble organic solvent, wherein the first water-soluble organic solvent exhibits a surface tension of 30 mN/m or lower at 20° C., an aqueous solution of the second water-soluble organic solvent of 10 mass % exhibits a surface tension of 50 mN/m or lower at 20° C., and the total content of the first water-soluble organic solvent and the second water-soluble organic solvent is 0.15 mass % or higher.02-14-2013
20100045739RESIN COMPOSITION, RESIN CURED PRODUCT, AND LIQUID DISCHARGE HEAD - An epoxy resin composition, including: an epoxy resin (A) represented by Formula (1); an epoxy resin (B) having an epoxy equivalent of 220 or less and having twice or more epoxy groups in a molecule than epoxy groups of the epoxy resin (A); and a photocationic polymerization initiator (C), in which: the epoxy resins (A) and (B) constitute main components; and a weight of the epoxy resin (A) is 40% or more and a weight of the epoxy resin (B) is 30% or more with respect to a total weight of the epoxy resins (A) and (B):02-25-2010
20100045738FLUID DISPENSING SUBASSEMBLY WITH COMPLIANT FILM - A fluid dispensing subassembly includes a diaphragm arranged to be operated on by a transducer, an aperture array through which fluid is forced onto a substrate, a manifold body between the diaphragm and the aperture array, a spacer between the manifold body and the aperture array, the spacer arranged to form a gap at least partially overlapping the manifold, and a compliant film arranged between the manifold body and the spacer such that the fluid resides on a side of the film adjacent the manifold, and that the film is unsupported by the spacer over a least a portion of the manifold. A fluid dispensing subassembly, includes a first set of plates including a diaphragm to be operated on by a transducer, a second set of plates including at least one manifold plate to direct ink to an aperture plate forming an exterior surface of the second set of plates, and a polymer compliant film arranged in between the first and second sets of plates to attach the first and second sets of plates together to form the fluid dispensing subassembly. A method of manufacturing a fluid dispensing subassembly includes forming a first structure of at least a diaphragm, forming a second structure of at least a manifold body, placing a polymer compliant film between the first and second structures, and using the polymer compliant film as an adhesive to attach the first and second structures of plates together, forming a fluid dispensing subassembly.02-25-2010
20100045737EXTERNAL FLUID MANIFOLD WITH POLYMER COMPLIANT WALL - A fluid dispensing assembly having a fluid dispensing subassembly to deliver fluid to a substrate, an external manifold to supply fluid having a first wall arranged adjacent to the fluid dispensing subassembly, and a compliant wall attached to a second wall arranged opposite the first wall, the compliant wall to confine the fluid to chambers in the manifold and to provide compliance for acoustic attenuation. A fluid dispensing assembly having an external manifold having at least one opening in a back side opposite a fluid dispensing subassembly side, the fluid dispensing subassembly side being in contact with fluid, and a compliant wall adhered to the external manifold on the back side. A method of manufacturing a fluid dispensing assembly having forming an external manifold having openings to receive fluid, attaching a compliant wall to the external manifold such that the compliant wall seals the openings, and attaching the external manifold to a fluid dispensing subassembly wherein the fluid dispensing subassembly and manifold are on opposite sides of a transducer arranged to operate on the fluid in the manifolds.02-25-2010
20090141080INK JET RECORDING HEAD - An ink jet recording head comprises a substrate including a discharge port forming member provided with discharge ports for discharging ink, and a flow path forming member for forming an ink flow path communicating to the discharge ports, wherein at least one of the flow path forming member and the discharge port forming member contains a material having fluorine atoms, a supply path used to supply ink to a supply hole, a support member supporting the substrate, a supply path forming member for forming a part of the supply path, and a rubber member provided between the support member and the supply path forming member and forming a part of the supply path. The supply path forming member or the rubber member contains a material containing bivalent metal, and the rubber member contains a compound providing counter ions to the bivalent metal.06-04-2009
20090244180FLUID FLOW IN MICROFLUIDIC DEVICES - A microfluidic device comprising a monolithic superstructure, wherein the superstructure contains fluid channels, and in at least one of the fluid channels, in an area where the channel changes direction or intersects another channel, the channel is greater in cross-section than in other areas of said channel.10-01-2009
20130027469LIQUID DISCHARGE HEAD - A liquid discharge head includes a first substrate having an energy generating element for discharging a liquid, and a second substrate which is bonded to the first substrate and which has a discharge port for discharging the liquid and a groove that forms a passage for supplying the liquid to the energy generating element, wherein one surface of the second substrate on the front surface side of the liquid discharge head and the other surface thereof, which is the back surface of the one surface, are individually provided with recesses.01-31-2013
20130027468LIQUID EJECTING HEAD AND METHOD FOR MANUFACTURING THE SAME - A liquid ejecting head including a liquid ejecting port for ejecting a liquid and nozzle layer having a liquid channel communicating with the liquid ejecting port, wherein the nozzle layer has two layers, and a first layer which is a layer at the side of the liquid channel among the two layers has a resin film-formed with an acid and has a smaller static contact angle of water as compared with a second layer which is the other layer.01-31-2013
20120182351SEALING MEMBER, LIQUID EJECTING HEAD, AND LIQUID EJECTING APPARATUS - A sealing member, disposed between a first member in which a first liquid flow channel is provided and a second member in which a second liquid flow channel that communicates with the first liquid flow channel is provided, includes: a plurality of communication openings; a reinforced portion in which the communication openings are provided; at least two first reference holes; a flexible portion, provided between the two first reference holes, that is weaker than the reinforced portion; and a second reference hole provided between the two first reference holes.07-19-2012
20130088545INKJET PRINT HEAD ASSEMBLY - There is provided an inkjet print head assembly. The inkjet print head assembly includes an inkjet print head, and a first coating layer formed on the inkjet print head, and absorbing and radiating heat generated in the inkjet print head.04-11-2013
20110001780POSITIONING JETTING ASSEMBLIES - Among other things, in one aspect, an apparatus comprises features to enable mounting first and second jetting assemblies on a frame. The features comprise first and second alignment datums pre-fixed with respect to the frame for establishing respective positions of the first and second jetting assemblies, when mounted, so that at least some of the nozzles along a length of one of the jetting assemblies have predetermined offsets relative to at least some of the nozzles along a length of the other of the jetting assemblies, and an opening exposing all of the nozzles along the lengths of the first and second jetting assemblies are exposed to permit jetting of a fluid onto a substrate.01-06-2011
20130050340METHOD OF MANUFACTURING INKJET HEAD AND THE INKJET HEAD - According to one embodiment, a method of manufacturing an inkjet head includes forming metal films respectively on a surface of a base member and a surface of a driving element attached to the base member, and shaving the metal film formed on the base member with a first laser beam and shaving the metal film formed on the driving element with a second laser beam having power different from power of the first laser beam to form a conductor pattern.02-28-2013
20090303287Printhead Integrated Circuit With Suspended Heater Elements - An inkjet printhead integrated circuit comprises a silicon substrate having a layer of drive circuitry and a passivation layer over the drive circuitry layer. The passivation layer defines a plurality of vias exposing a plurality of contacts in the underlying drive circuitry. Sidewalls extend from the passivation layer and meet with a nozzle plate spaced apart from the passivation layer. The nozzle plate and the sidewalls together form a plurality of ink chambers, each ink chamber having a nozzle opening defined in the nozzle plate and an ink inlet. A heater element is suspended in each of the ink chambers. Each heater element is electrically connected to a respective pair of contacts in the drive circuitry layer through a respective pair of the vias.12-10-2009
20090040272LIQUID EJECTION HEAD AND IMAGE-FORMING APPARATUS USING THE SAME - A liquid ejection head according to the present invention includes a plurality of ejection openings arranged in a first direction and a plurality of electro-thermal transducers for ejecting liquid from the ejection openings, the liquid ejection head and a printing medium being subjected to the relative movement, wherein an arrangement pitch of the ejection openings forming an end group located in the respective opposite end section along the first direction is longer than an arrangement pitch of the ejection openings forming a central group located in the central section along the first direction. According to the present invention, it is possible to eliminate white streaks which may generate in a solid printing.02-12-2009
20110012960LIQUID DISCHARGE HEAD SUBSTRATE AND MANUFACTURING METHOD THEREOF, AND LIQUID DISCHARGE HEAD USING LIQUID DISCHARGE HEAD SUBSTRATE AND MANUFACTURING METHOD THEREOF - A liquid discharge head substrate includes an electrode layer, which is electrically connected to an element that generates energy used for discharging a liquid and provided in an inner side of a region between a first face and a third face of a substrate, and a member made of resin which covers the electrode is provided in the region.01-20-2011
20110012959INKJET HEAD - An inkjet head includes a main body, a film, a piezoelectric atomizer, a cover and a nozzle plate. The main body includes a cavity receiving a fluid with an opening connecting the cavity. The cover is fastened to a top end of the main body. The film is interposed between the cover and the main body. The nozzle plate includes a plurality of nozzles. The nozzle plate is disposed on a bottom end of the main body. The piezoelectric atomizer is interposed between the cover and the film. The piezoelectric atomizer introduces pressure variations in a static pressure to atomize the fluid.01-20-2011
20090267989CIRCUIT SUBSTRATE AND LIQUID DISCHARGING APPARATUS - The present invention provides a higher density, higher resolution, higher durability and lower cost circuit substrate. In a circuit substrate in which a circuit including: a plurality of heat generating elements in which a pair of electrodes opposing each other to form a predetermined gap is provided on a resistor 10-29-2009
20110063369Non-Wetting Coating on a Fluid Ejector - A method of forming a non-wetting coating on a fluid ejector includes applying an oxygen plasma to a substrate to form an outer portion of the substrate having a density that is greater than a density of an interior portion of the substrate and depositing a non-wetting coating on an exterior surface of the outer portion. The outer portion is less than 80 Å thick.03-17-2011
20130063524INKJET RECORDING APPARATUS, METHOD FOR INKJET RECORDING, AND INK - An inkjet recording apparatus including an ink; and an ink discharging head configured to discharge the ink, wherein the ink discharging head is provided with a nozzle having a silicone-containing water-repellent film on a surface thereof on which the ink contacts, wherein the ink contains a colorant; water; and a water soluble organic solvent, wherein the colorant contains a carbon black partially coated with a resin, and wherein the ink meets the following expressions (1) and (2):03-14-2013
20130063523LIQUID RECORDING HEAD AND METHOD OF MANUFACTURING THE SAME - Provided is a liquid recording head in which a protective layer having resistance to liquid and an adhesiveness improving film are disposed on a second surface opposite to a first surface of a silicon substrate. The first surface and the second surface have a plane direction. The protective layer is disposed in a peripheral region of an opening of a liquid supply port. A liquid ejection chip is bonded to a head substrate with an adhesive so that the liquid supply port communicates to a liquid introduction port on a side of the second surface of the silicon substrate.03-14-2013
20090237452INK JET RECORDING APPARATUS - An ink jet recording head includes a recording element substrate provided on one side thereof with a plurality of ejection outlet arrays each including a plurality of ejection outlets for ejecting recording liquid and provided on the other side thereof with a plurality of supply ports for supplying the recording liquid to the ejection outlet arrays, respectively; and a supporting member for supporting the recording element substrate by connecting with the other side of the recording element substrate, the supporting member has a plurality of supply passages for supplying the recording liquid to respective supply ports, wherein the supporting member is provided with a partition between adjacent ones of the liquid passages, and at least one side of the partition is provided with pits and projections arranged alternately along a longitudinal direction of the partition.09-24-2009
20090237451INKJET PRINT HEAD AND MANUFACTURING METHOD THEREOF - An inkjet print head including a substrate and a first film member stacked on the substrate to form an ink path, and a manufacturing method thereof. The first film member includes a path-defining layer made of a photosensitive material and formed with the ink path, and an adhesive layer made of a photosensitive material and used to stably bond the path-defining layer to the substrate. With this configuration, the path-defining layer and the adhesive layer can be simultaneously stacked on the substrate and also, can be patterned simultaneously.09-24-2009
20090046125Maintainable Coplanar Front Face for Silicon Die Array Printhead - A full width array printhead is provided having a continuous maintainable printhead surface and method of forming the same. The printhead includes a substrate and an array of die modules mounted thereon with a front face of each die module exposed. A hardened fill material surrounds the array of die modules to define a continuous surface coplanar with the front face of the array of die modules.02-19-2009
20120236077LIQUID EJECTION HEAD - A liquid ejection head including an ejection device substrate having a substrate provided with an energy-generating element that generates energy for ejecting a liquid, a liquid supply member that supplies the liquid to the ejection device substrate, and a support member that is provided between and joined to the ejection device substrate and the liquid supply member. The support member has at least two liquid supply flow paths that are through-holes extending through the support member and has a projected or depressed portion at its joint surface with respect to the liquid supply member. A spacing between two adjoining liquid supply flow paths at the joint surface with respect to the liquid supply member is larger than a spacing between the adjoining two liquid supply flow paths at a joint surface of the support member with respect to the ejection device substrate.09-20-2012
20110141193INK DISCHARGE HEAD AND MANUFACTURING METHOD THEREOF - An ink discharge head includes a coating resin layer having a plurality of discharge ports for discharging ink, and ink flow passages which communicate with the plurality of discharge ports, respectively; and a substrate having energy generation elements which generate the energy for discharging ink and provided with the coating resin layer. A crack inducing portion for relieving the stress produced at the interface between the coating resin layer and the substrate is formed at lateral faces of the outer peripheral edge of the coating resin layer.06-16-2011
20110279545LIQUID DISCHARGE HEAD - A liquid discharge head includes a liquid discharge substrate having a discharge port array, and a channel member having a mounted face on which the liquid discharge substrate is mounted, channels for supplying liquid to the discharge port array, and a low thermal conductivity portion, wherein the channels includes an opening for flowing liquid, which is provided at a part except for both ends of the discharge port array, a first channel for passing the liquid, and a second channel for passing the liquid in a direction opposite to the liquid flowing direction in the first channel, wherein the opening, the first channel, the low thermal conductivity portion, and the second channel are provided in this order to be vertical to the mounted face, and the opening and the low thermal conductivity portion are provided to be at least partially overlapped one above the other.11-17-2011
20080273057LAMINATED PRINTHEAD ARRANGEMENT FOR A PEN NIB PRINTER - Provided is a laminated printhead arrangement for a pen nib printer. The printhead includes ink distribution layers, a layer of semiconductor ejection devices operatively supplied with ink via the ink distribution layers, and a guard layer positioned on top of the ejection device layer to protect the ejection devices. The guard layer defines printing passages via which the ejection devices eject ink. Also included is a rotary capper rotatably fixed to the guard layer about a central axis of the printhead, so that rotation of the capper covers or exposes the printing passages.11-06-2008
20110298864DISCHARGE HEAD AND DISCHARGE APPARATUS - There is provided a discharge head including: a tubular member that includes a flat portion with an oblate shape where a cross-section of a tube path extends in a first direction, the tubular member being formed so that the flat portion includes a first wall that is flat and has an actuator attached to an outside thereof and the flat portion becomes a cavity with an internal volume thereof varying due to displacement of the first wall; and a nozzle opening that is provided at one end of the tubular member and discharges a liquid substance due to variation in the internal volume of the cavity.12-08-2011
20110298865EJECTION LIQUID DRYNESS SUPPRESSING DEVICE, LIQUID EJECTING APPARATUS, AND EJECTION LIQUID DRYNESS SUPPRESSING METHOD - There is provided a nozzle contact unit capable of realizing a contact state, where a contact surface comes into close contact with a nozzle formation surface to block a plurality of nozzle openings, and a separated state, where the contact surface is separated from the nozzle formation surface. The nozzle contact unit separates the contact surface from the nozzle formation surface to sequentially open the nozzle openings preferentially from the nozzle opening of the nozzle with a shorter flow passage length of ink flowing from a supply port to the nozzle via a common ink chamber among the plurality of nozzle openings in a procedure from the contact state to the separated state.12-08-2011
20120098888LIQUID DISPENSER INCLUDING CURVED OUTLET OPENING WALL - A liquid dispenser includes a liquid supply channel, a liquid return channel, and a liquid dispensing channel. The liquid dispensing channel includes a wall. The wall includes a surface. A portion of the wall defines an outlet opening. The outlet opening includes an upstream edge relative to a direction of liquid flow through the liquid dispensing channel. The upstream edge includes a radius of curvature when viewed from a direction perpendicular to the surface of the wall. A liquid supply provides liquid that flows from the liquid supply channel through the liquid dispensing channel to the liquid return channel. A diverter member that selectively diverts a portion of the flowing liquid through the outlet opening of the liquid dispensing channel.04-26-2012
20110292124LAMINATE CONSTRUCTS FOR MICRO-FLUID EJECTION DEVICES - A micro-fluid ejection head has an ejection chip to expel fluid. It connects to a laminate construct. The construct has vertically configured wiring layers interspersed with non-conductive layers, such as carbon fiber layers. An upper of the wiring layers electrically connects to the ejection chip. The upper layer may also support a planar undersurface of the chip directly on a surface or in a recessed pocket. The two can connect with a die bond, such as one having silica or boron nitride. Fluid connections exist between ink feed slots of the chip and the laminate construct. A silicon tile or other material may also fluidly interconnect with the two. A plastic manifold optionally supports the laminate construct and may fluidly connect to it. The wiring layers of the laminate contemplate ground, power, and various bond pads. Other construct layers contemplate prepreg or core FR4 layers.12-01-2011
20110292125LIQUID DISCHARGE HEAD AND MANUFACTURING METHOD THEREFOR - Provided is a liquid discharge head including a recording element board provided with an energy generating element; an electrical wiring board to supply the energy generating element with an electrical signal; a supporting member to support the recording element board and the electrical wiring board; a plurality of wires to connect a plurality of terminals provided on the recording element board and a plurality of terminals provided on the electrical wiring board; and a sealing member; wherein the plurality of wires include a plurality of transmitting wires contributory to transmission of the electrical signal and a plurality of non-transmitting wires non-contributory to the transmission formed at a higher position than the transmitting wires from that surface of the supporting member which supports the recording element board, and the sealing member is arranged to cover the plurality of transmitting wires as well as to join the plurality of non-transmitting wires.12-01-2011
20110267403INK JET RECORDING HEAD - An ink jet recording head comprises a discharge port forming member that forms a discharge port used to discharge ink and a channel forming member that forms an ink channel communicating with the discharge port, at least either one of the channel forming member and the discharge port forming member comprising a substance having fluorine atoms and a rubber member composing a part of an ink passage continuous with the channel, the rubber member being cross-linked by an organic substance.11-03-2011
20090309925LIQUID-DISCHARGING RECORDING HEAD - A liquid-discharging recording head includes first and second substrates each having an energy generating element and a supply port, and a support member on which the substrates are arranged. The first substrate is provided on one side in a longitudinal direction of the support member, and the second substrate is provided on an other side in the longitudinal direction of the support member. A driving circuit configured to drive the energy generating element is provided in a larger region between an end of a supply port in the first substrate on the other side in the longitudinal direction and an end of the first substrate on the other side and in a larger region between an end of a supply port in the second substrate on the one side in the longitudinal direction and an end of the second substrate on the one side.12-17-2009
20090309927INKJET PRINTING HEAD - The present invention provides an inkjet printing head which is not deteriorated in printing quality or broken in production processes. For this purpose, a rib capable of being displaced upon receiving an influence of stress resulting from a sealant is installed at a position opposing the long side face of a printing element substrate, and the sealant is used to seal between the ribs and the printing element substrate.12-17-2009
20090309926PRINTING HEAD - There is provided a printing head in which a printing element substrate is hard to be deformed even if the printing head falls by mistake. The printing head comprises an element substrate in which an energy generating element for generating energy used for ejecting ink is provided, a first sheet-shaped portion to which the element substrate is provided, a second sheet-shaped portion provided away from the first sheet-shaped portion at an opposite side to a direction of ejecting the ink in relation to the first sheet-shaped portion, and a sheet-shaped wall member connecting the first sheet-shaped portion to the second sheet-shaped portion, wherein the wall member has a thickness of a portion connected to the second sheet-shaped portion, which is larger than a thickness of a portion connected to the first sheet-shaped portion.12-17-2009
20090309923PRINTING HEAD - There is provided a printing head, enabling to suppress the occurrence of cracks in a printing element substrate, even if the printing head is erroneously fallen. The printing head comprises: a printing element substrate, an ink flow passage and a sheet-shaped portion comprising a rectangular major surface. A rear surface side of the major surface of the sheet-shaped portion is provided with a space formed separately from the ink flow passage. A surface adjacent to the major surface is provided with an opening of the space formed therein, and wherein the sheet-shaped portion is provided with a concave portion formed on the rear surface side of two regions between the printing element substrate and two corner portions arranged proximate to the opening in the major surface.12-17-2009
20100128086PRINTHEAD INCLUDING MOVING PORTIONS AND SEALING BRIDGES - An inkjet printhead comprising: a stationary portion; a plurality of moving portions for ejection of ink; and a plurality of seal members. Each seal member connects a respective moving portion with the stationary portion. Each seal member has a non-planar profile configured for facilitating movement of the moving portion.05-27-2010
20090189951INK JET PRINT HEAD - An ink jet print head is provided which is highly reliable in recovering its performance by removing bubbles accumulated in the ink paths to reliably prevent print quality degradations in bi-directional printing. In the ink ejection member having an odd number of arrayed ink supply ports to supply ink to the ejection openings, the ink colors of the ink supply ports are arranged laterally symmetrically and a plurality of ink tanks are arranged side by side so that the direction of array of the ink supply ports is perpendicular to the direction of array of the ink tanks.07-30-2009
20090201337ACTUATOR DEVICE, METHOD OF MANUFACTURING THE SAME AND LIQUID-JET HEAD - Provided is an actuator device including a piezoelectric element formed of a lower electrode, a piezoelectric layer, and an upper electrode, and displaceably provided on a substrate with a zirconium oxide layer interposed therebetween, the substrate having a silicon oxide layer formed by thermal oxidation on at least a surface, and an intermediate layer made of at least one material selected from the group consisting of titanium oxide, hafnium oxide, aluminum oxide, calcium oxide, and rare earth oxide, and provided between the silicon oxide layer and the zirconium oxide layer.08-13-2009
20090284567INK JET RECORDING HEAD, PRODUCING METHOD THEREFOR AND COMPOSITION FOR INK JET RECORDING HEAD - The invention provides a method for producing an ink jet recording head having a high durability and a high ink resistance and enabling a high-quality image recording by employing a material capable of reducing the internal stress and having satisfactory patterning characteristics. It also provides a method of producing such ink jet recording head with a high precision. A cationically photopolymerizable resin composition containing a condensate of a hydrolysable organosilane compound, employed as a material for forming a flow path forming member, enables a reduction of internal stress and a highly precise pattern in the flow path forming member thereby providing an ink jet recording head having a high durability and a high ink resistance and capable of high-quality printing over a prolonged time, and a producing method therefor.11-19-2009
20100201746LIQUID EJECTION HEAD - A print head is provided by which a temperature change depending on each region in the substrate can be suppressed. The print head has an ink chamber communicating with an ink supply port. Furthermore, the print head has: a plurality of nozzle groups each of which is formed as one unit by combining a plurality of: communication ports that are provided in the ink chamber and that communicate with the ink supply port; pressure chambers including heat generating elements, ink supply ports, and ejection ports. A plurality of nozzle groups are formed in the same substrate and form a plurality of nozzle group arrays that are formed by the nozzle groups and that extend in the same direction. The plurality of nozzle group arrays are formed to be offset from one another in the direction along which the nozzle group array extend.08-12-2010
20110199432Liquid Injection Head, Liquid Injection Recording Apparatus, and Method of Filling LiquidInjection Head With Liquid - To enhance a space factor and ability of collecting excess liquid, there is provided a liquid injection head provided with a plurality of nozzles includes a nozzle guard that is formed so as to cover the nozzles, the nozzle guard including: a top portion having a slit opposed to the nozzles while being placed apart from a surface of the nozzles; a sealing portion that seals an area between a peripheral edge of the top portion and the nozzles; and a suction flow path in which a suction port is opened to a lower portion of the nozzles, and is communicated to an inside space of the nozzle guard, in which the inside space of the nozzle guard is rendered a negative pressure chamber by a suction portion connected to the suction flow path, and a first liquid overflowing the nozzles to the negative pressure chamber is sucked.08-18-2011
20080284819LIQUID EJECTING HEAD AND LIQUID EJECTING APPARATUS - A liquid ejecting head comprising a head body capable of ejecting liquid in from pressure generating chamber through nozzles by driving the pressure generating chamber, a plurality of head members adhered to the head body, the head members comprising a head casing having a channel for supplying the liquid to the pressure generating chamber and a plurality of notches for allowing a first and second adhesive to be filled in a plurality of gaps between the head members adhered to the head body, and a fixed member which is adhered to the liquid ejecting surface of the head members, wherein the first and second adhesive have different viscosities.11-20-2008
20080291244LIQUID EJECTION HEAD AND LIQUID EJECTION METHOD - A liquid ejection method is provided which ejects small-volume droplets from ejection openings and causes them to reliably combine together on the fly into a large droplet that is less susceptible to influences of air flows, thus realizing a printing with reduced droplet landing position deviations. To that end, each of the ejection openings is constructed of two openings spaced apart and a slit-like constricted connection portion that connects the two openings together.11-27-2008
20080273056INKJET RECORDING HEAD AND INKJET RECORDING APPARATUS - An inkjet recording head in which liquid supply flow paths formed in a first plate are defined by vertical walls and inclined walls. The vertical walls are perpendicular to surfaces of corresponding recording element substrates that contact the first plate. The inclined walls are inclined with respect to these surfaces. In the liquid supply flow paths that supply ink to ink supply ports of the recording element substrates arranged in one row, the inclined walls extend in a first direction along a direction of arrangement of the recording element substrates with respect to the vertical walls. In the liquid supply flow paths that supply the liquid to the liquid supply ports of the respective recording element substrates arranged in another row that is adjacent to the one row, the inclined walls extend in a second direction, which is opposite to the first direction, with respect to the vertical walls.11-06-2008
20090309924LIQUID DISCHARGING APPARATUS AND PRODUCTION METHOD THEREFOR - There is provided a production method for a liquid discharging apparatus including a liquid discharging head having a discharging port configured to discharge liquid, and a thermoplastic support portion having a liquid supply passage configured to supply the liquid to the liquid discharging head. The production method includes a preparation step of preparing the liquid discharging head and the support portion, a heating step of heating the liquid discharging head, an approach step of moving the liquid discharging head close to the support portion and melting the support portion by applying radiant heat from the liquid discharging head to the support portion, and a pressing step of pressing the liquid discharging head against the support portion so that the melted support portion forms a wall portion to contact an outer peripheral portion of the liquid discharging head.12-17-2009
20110205301Inkjet head - There is provided an inkjet head including: a body portion ejecting ink therein by a driving of an actuator; and a rigidity reinforcing portion coupled to an outer surface of the body portion and reducing deformation of the body portion during the ejecting of the ink.08-25-2011
20090160907LIQUID EJECTION HEAD - A liquid ejection head including: a head main body including: a cavity unit including a passage forming base plate forming a liquid passage from a common liquid chamber to a nozzle opening via a pressure chamber; and a pressure generating source generating a change of pressure of liquid in the pressure chamber to eject the liquid in the pressure chamber as a liquid droplet from the nozzle opening; and a case member to which the head main body is attached and which includes: a first member provided with a first atmosphere opening passage; and a second member laminated on the first member and provided with a second atmosphere opening passage, wherein the first and second atmosphere opening passages communicate with each other under the laminated state and are opened to atmosphere.06-25-2009
20090141081Modular Printhead Assembly - A modular printhead assembly includes a substrate member. A plurality of printhead modules is fastened to the substrate member. Each printhead module includes a layered structure through which at least differently colored inks are fed. The layered structure has at least a lower layer, a middle layer and a top layer, with the lower layer defining a number of channels in fluid communication with respective ink supplies, the middle layer defining a number of openings in fluid communication with the channels, and the top layer defining a number of channels on a bottom side and openings in a top side in fluid communication with the channels. A micro-electromechanical printhead integrated circuit is mounted on the layered structure. The printhead integrated circuit has a plurality of micro-electromechanical nozzles arranged on a silicon layer. The silicon layer defines a plurality of ink channels for feeding ink to the nozzles, the openings in the top layer being substantially aligned with the ink channels. An ink supply is arranged on the substrate member and is in fluid communication with the channels in the bottom layer through openings in the substrate member.06-04-2009
20090015635INK JET RECORDING METHOD - A method for discharging liquid from a recording head including a first discharge port configured to discharge a liquid, a second discharge port configured to discharge a liquid, an amount of which is smaller than an amount of the liquid discharged from the first discharge port, and a substrate including a first heating element corresponding to the first discharge port, a second heating element corresponding to the second discharge port and the liquid supply port, wherein a distance between the liquid supply port and the second heating element is longer than a distance between the liquid supply port and the first heating element, and wherein discharge of the liquid from the first discharge port is performed by a discharge method in which a bubble formed by the first heating element communicates with atmosphere and an amount of the liquid discharged from the second discharge port is less than 2 pico liters.01-15-2009
20110221823LIQUID DISCHARGE HEAD SUBSTRATE AND HEAD UNIT - A liquid discharge head substrate includes an external terminal, a diode, a first conductive layer, a second conductive layer, and a third conductive layer. The external terminal is configured to connect to an external. The first conductive layer is connected to the external terminal for causing an input current to flow from the external terminal, and the diode includes an anode and a cathode. The second conductive layer is connected to the first conductive layer and one electrode of the anode and cathode, and causes a surge current generated when a surge voltage is applied from the external terminal, to flow from the first conductive layer to the one electrode. The third conductive layer is connected to the other electrode of the anode and the cathode and passes the surge current flowing from the one electrode to the other electrode. The first conductive layer includes a part laminating with the second conductive layer sandwiching an insulation layer, and does not include a part laminating with the third conductive layer.09-15-2011
20090122110Ink Discharging Apparatus and Ink Discharging Method - The present invention provides an ink discharging apparatus which can reduce processing time required for discharging ink onto all ink discharge targets. The ink discharging apparatus of the present invention has an ink discharging section (05-14-2009
20090244184Printhead With Nozzle Face Recess To Contain Ink Floods - An inkjet printhead that has a silicon wafer substrate that defines a plurality of ink inlet channels and a plurality of replicated nozzle arrangements positioned on the substrate to receive ink from the ink inlets and eject ink droplets onto a media substrate. Each of the nozzle arrangements has nozzle chamber walls, and a roof positioned on the nozzle chamber walls defining an ink ejection port. The roof defines a recess about the ink ejection port to inhibit ink spread from any nozzle face floods.10-01-2009
20090244181LIQUID DISCHARGE HEAD AND RECORDING APPARATUS HAVING THE SAME - A liquid discharge head includes a discharge port array having discharge ports for discharging liquid, a liquid chamber for supplying liquid to the discharge port array, and a liquid introduction passage for introducing liquid to the liquid chamber. A vertical cross section of the liquid chamber has an elongated shape. The liquid introduction passage is wider than the liquid chamber in a width direction of the elongated shape. A communicating portion is longer than a width of the liquid chamber and shorter than the liquid chamber, and is projecting from the liquid introduction passage for the liquid chamber. A bottom of the liquid introduction passage is disposed at a lower position than a top of the liquid chamber in the communicating portion, and a distance between the top and the bottom is longer than half of the width of the liquid chamber.10-01-2009
20090185002Scalable expandable rotojet rotating spray jet printhead - A scalable expandable spray ink printer machine for use with paper roll stock is disclosed. A series of three or four print heads are place serially in proximity to paper stock. The configuration of the cylindrical print head allows the heads to be expanded for printing on wider paper stock. The print heads include a combination of fixed, turning and sliding components to align or block ink flow from the print ink reservoir. The printer is in fixed position perpendicular to the travel direction and rotates internally on an axis parallel to the paper or media to be printed. The print head is sectional and lengthwise expandable in fixed unit lengths. The printing machine is ideally suited for advertising or other elongated print media. Due to the use of standard paper, roll stock and speed of the printing, signs can be printed on demand and displayed in real-time.07-23-2009
20110228003LIQUID EJECTING METHOD AND LIQUID EJECTING APPARATUS - After a gloss-based liquid is ejected from a liquid ejection head, which ejects liquid from nozzles of a nozzle row, to a predetermined position on a landing target to form a glossy layer, a white-based liquid is ejected onto the glossy layer to form a white layer, the ejection amount of the gloss-based liquid being greater than the ejection amount of the white-based liquid.09-22-2011
20090256886Liquid-Droplet Ejection Head and Ink Jet Printer - A liquid-droplet ejection head may include stacked plates that form therein a common liquid channel and a plurality of individual ink channels extending from exits from the common liquid channel to nozzles via pressure chambers. At least one of the stacked plates may include an island-shaped partial plate surrounded by the common liquid channel and configured to form at least a part of side walls of the common liquid channel. The stacked plates may also include a support portion that transverse the common liquid channel and configured to support the partial plate. At least a part of a side edge of the support portion on an upstream side of a flow direction of liquid in the common liquid channel may be inclined to the flow direction, as viewed in a direction perpendicular to the stacked plates.10-15-2009
20120105545EJECTION CHIP FOR MICRO-FLUID APPLICATIONS - Disclosed is an ejection chip for an inkjet printhead that includes at least one fluid via configured on the ejection chip for supplying fluid to one or more ejecting elements of the ejection chip. Each fluid via of the at least one fluid via includes a plurality of end-to-end coupled segments. Each segment of the plurality of end-to-end coupled segments is aligned at a skew angle with a consecutive segment. Further, the ejection chip includes a plurality of nozzles configured along a length of the each segment of the plurality of end-to-end coupled segments with a first nozzle spatial density. The configuration of the plurality of nozzles facilitates in achieving a predetermined print resolution with the first nozzle spatial density.05-03-2012
20090244182INJET JET STACK EXTERNAL MANIFOLD - An inkjet external ink manifold is provided that allows for use of a jet stack that does not internally contain ink manifolds. The external ink manifold has a manifold body that includes one or more ink manifold chambers and includes ports arranged to connect the chambers to one or more ink reservoirs. The external ink manifold further includes an adhesive layer overlying and sealing the ink manifold chambers. The adhesive layer includes a plurality of ports arranged to connect the external ink manifold chambers to the jet stack.10-01-2009
20120194615Inkjet Ejector Having an Improved Filter - A manifold assembly has been constructed that filters ink before the ink enters an inkjet ejector in an inkjet print head. The manifold assembly includes an adhesive layer having openings, an ink manifold layer having a plurality of openings, the openings in the adhesive layer being aligned with the openings in the ink manifold layer, and a polymer layer having a plurality of filter areas, the filter areas being aligned with the openings in the ink manifold layer and the openings in the adhesive layer, the adhesive layer being interposed between the polymer layer and the ink manifold layer.08-02-2012
20100156990LIQUID DISCHARGE HEAD AND METHOD OF MANUFACTURING THE LIQUID DISCHARGE HEAD - A liquid discharge head includes an Si substrate which is provided with an element for generating energy used in discharging a liquid and a liquid supply port which is provided to pass through the Si substrate from first surface to rear surface so as to supply a liquid to the element. A method of manufacturing the substrate includes: forming a plurality of concave portions on the rear surface of the Si substrate of which a plane orientation is {100}, the concave portions facing the first surface and aligned in rows along a <100> direction the first surface; and forming a plurality of the supply ports by carrying out a crystal axis anisotropic etching on the Si substrate through the concave portions using an etching liquid of which an etching rate of the {100} plane of the Si substrate is slower than that of the {110} plane of the Si substrate.06-24-2010
20090315945PRINT HEAD - A present invention improves the impact accuracy of ejected droplets, the quality of printed images, and print speed. A print head according to the present invention has an ink channel for which the width thereof in a direction orthogonal to an ink supply direction in which ink is supplied from an ink supply port to a pressure chamber is smaller than that of a pressure chamber. In the print head, the center of a heater along the ink supply direction is offset from the center of the pressure chamber along the ink supply direction, toward the side of the pressure chamber far from the ink supply port in the ink supply direction.12-24-2009
20100149261INK JET RECORDING HEAD AND METHOD FOR MANUFACTURING SAME - An ink jet recording head includes a recording element substrate and a supporting member. The recording element substrate has an energy generating element that generates energy used for discharging liquid. The supporting member has a plurality of supply paths that are through holes facilitating supplying liquid to the recording element substrate, and supports the recording element substrate. A first protrusion is provided on a surface of the supporting member in contact with adhesive for bonding the recording element substrate, and at each end in the longitudinal direction of each of partition walls formed between the plurality of supply paths.06-17-2010
20100149260INK JET HEAD AND METHOD OF MANUFACTURING THE SAME - An ink jet head includes a Si substrate with a surface having a {100} orientation; a passage holding ink on the Si substrate; an ink discharge port which is communicatively connected to the passage and through which ink is ejected; and a supply port which extends through the Si substrate, which is communicatively connected to the passage, and which supplies ink to the passage. The supply port has walls having two {111} planes facing each other.06-17-2010
20100013890Inkjet Printhead With Internal Rim In Ink Chamber - An inkjet printhead includes an ink supply channel extending through a substrate; an ink chamber arranged on the substrate, into which chamber ink from the ink supply channel is supplied, the ink chamber defining an ink ejection port on one surface thereof; an internal rim provided within the ink chamber, the rim interposed between the ink supply channel and the ink ejection port; and a thermal bend actuator extending into the chamber from outside the chamber, the thermal bend actuator terminating in the chamber with a paddle. The periphery of the paddle and the internal rim are shaped with complementary edges turned towards the ink ejection port.01-21-2010
20100013889INK JET PRINTING HEAD - There is inexpensively and simply provided a highly reliable printing head including a printing element substrate which is located with high positioning precision and therefore causes no occurrence of ink leak regardless of the printing head having a large printing width. An ink jet printing head comprising a plurality of printing element substrates in each of which a plurality of ejecting openings, printing elements and an ink supply opening, a support member and an ink supply member wherein the support member is formed of a first member and a second member and is integral with the first member so as to surround the first member and the support member and the ink supply member are bonded in such a manner that bonding faces of the first member and the second member, and the second member are not in contact with the opening.01-21-2010
20100188461LIQUID EJECTING HEAD UNIT AND LIQUID EJECTING APPARATUS - A liquid ejecting head unit includes a base plate that holds a liquid ejecting head. A position determining pin is fitted into a position determining pin inserting hole in one of the liquid ejecting head and the base plate and is positioned on the other. A guide plate has a pin support hole inserted into the position determining pin. The guide plate is configured by a lowermost layer that is bonded to the other in which the position determining pin is positioned, a middle layer, and an uppermost layer. The pin support hole is configured by a first opening portion in the uppermost layer, a second opening portion in the lowermost layer, and a communication opening portion in the middle layer and allows the first and second opening portions to communicate with each other. The position determining pin is supported by the first and second opening portions.07-29-2010
20100253742MANIFOLD FOR A PRINTHEAD - A printhead assembly is described including multiple printheads, a manifold and multiple inlet tubes. The printheads each include: a fluid inlet to receive fluid into the printhead; and a set of one or more nozzles to deposit fluid on a substrate. The manifold is connected to the printheads and includes: a fluid inlet duct configured to receive fluid for delivery to the printheads; multiple fluid inlet channels for connecting the fluid inlet duct to the printheads; and multiple fluid inlet valves configured to control a flow of fluid from the fluid inlet duct to each of the fluid inlet channels. The inlet tubes each have a proximal end integral to either the manifold or one of the printheads, and a distal end connected to either the manifold or said printhead with a single fluid-tight connection.10-07-2010
20110109695INK CHAMBERS FOR INKJET PRINTER - An inkjet printhead having arrays of nozzles wherein each of the arrays has a corresponding ink inlet. A mounting substrate includes a first face with first openings fluidly connected to corresponding ink inlets of the arrays. A second face opposed to the first face includes a plurality of second openings fluidly connected to openings of the first face. The ink outlets of the ink chambers are fluidly connected to corresponding second openings in the second face of the mounting substrate, an outer wall is disposed proximate to the plurality of inlet ports and a second outer wall is disposed opposite the first outer wall and distal to the plurality of inlet ports. Each ink chamber has a portion located proximate to the first outer wall and an outer chamber of the plurality of ink chambers has a portion located proximate to the second outer wall.05-12-2011
20110057991Inkjet head and manufacturing method thereof - There is provided an inkjet head and a manufacturing method thereof. The inkjet head includes an upper substrate formed of a silicon material and having an ink chamber storing ink provided therein; an intermediate substrate bonded to the upper substrate, formed of a low temperature co-fired ceramic material, and having a connection path and a restrictor provided therein while the connection path and the restrictor are connected to the ink chamber; and a lower substrate bonded to the intermediate substrate, formed of a silicon material, and having a nozzle connected to the connection path provided therein. According to the inkjet head and the manufacturing method thereof, the densification and facilitation of bonding between substrates are achieved by using anodic bonding between a silicon substrate and a ceramic substrate, thereby improving manufacturing yield.03-10-2011
20090244183Inkjet Printer Having Funnelled Distribution To Nozzle ICS - An inkjet printer is provided having a plurality of nozzle integrated circuits, a support member having a plurality of longitudinally extending channels for carrying ink, and a plurality of ink distribution members via which ink is distributed from the channels of the support member to the nozzles of the nozzle integrated circuits. Each ink distribution member incorporates a laminated stack of layers, each layer having apertures for distributing ink from the channels to the nozzles of a respective one of the printhead integrated circuits. The apertures of each layer from the support member to the respective printhead integrated circuit are of successively smaller diameter.10-01-2009
20090115816INK JET WRITING HEAD - The invention relates to an ink jet writing head comprising a pressurised ink chamber (05-07-2009
20120242746INKJET PRINTHEAD - The present invention related to an inkjet printhead, adaptive for an ink cartridge including three ink-supplying tank, the inkjet printhead includes: a nozzle plate having a plurality of nozzles; and an inkjet chip for controlling ink jetting and having a total area region having a length and a width, the total area region including: a non-wiring region for installing three single ink-supplying flow channels; and a wiring region for installing an internal circuit including a plurality inkjet unit assembly, each inkjet unit of the inkjet unit assembly including a heater installed correspondingly to the nozzle; wherein an area of the wiring region of the inkjet chip is or less than 77% of a total area of the inkjet chip.09-27-2012
20120242747LIQUID EJECTION HEAD AND MANUFACTURING METHOD THEREOF - Provided is a liquid ejection head, including: an ejection orifice forming member having an ejection orifice for ejecting liquid; a substrate having a supply port for supplying the liquid to the ejection orifice; and a filter disposed at a position upstream of the ejection orifice when the liquid is supplied to the ejection orifice, in which the filter includes an opening having a diameter smaller than or equal to a diameter of the ejection orifice, and a tapered shape structure disposed at a position upstream of the opening when the liquid is supplied to the ejection orifice, the tapered shape structure having a distal end directed toward an upstream side.09-27-2012
20100220147PAGEWIDTH PRINTHEAD ASSEMBLY HAVING LCP MICROMOLDING - A pagewidth inkjet printhead assembly includes a printhead integrated circuit; an LCP ink manifold; and a flex PCB wire-bonded to bond pads on the printhead integrated circuit. The flex PCB wraps around the LCP ink manifold. The ink manifold includes an LCP lower micromolding having a plurality of ink inlets and an LCP upper micomolding having a plurality of ink outlets. The printhead integrated circuit is bonded to the LCP upper micromolding;09-02-2010
20110122194High Volume Ink Delivery Manifold for a Page Wide Printhead - An ink manifold for supplying liquid ink to a heater chip of an inkjet printhead. Ink ports on one side of the manifold feed liquid ink to the ink channels on the other side of the manifold, and thus to the backside ink trenches of the heater chip. The placement and number of ink ports formed in the ink manifold are optimized so that when the heater chip and the ink manifold are scaled down in size, the ink carrying capacity of the printhead components is not compromised. Similarly, when the ink manifold is scaled down, the optimization process allows the seal width between the ink port features of the manifold to be maintained above a specified minimum.05-26-2011
20110109694Thermal Oxide Coating On A Fluid Ejector - A fluid ejection module includes a flow-path body, a first oxide layer, a membrane, and a second oxide layer. The flow-path body has a first outer surface and an opposing second outer surface and a plurality of flow paths, each flow path extending at least from the first outer surface to the second outer surface. The first oxide layer coats at least an interior surface of each of the flow paths and the first and second outer surfaces of the flow-path body and has a thickness that varies by less than 5% along {100} planes. The membrane has a first outer surface. The second oxide layer is coated on the first outer surface of the membrane and has a thickness that varies by less than 5% along {100} planes and is bonded to the first oxide layer.05-12-2011
20110115850LIQUID SUPPLY MEMBER, MANUFACTURING METHOD OF LIQUID SUPPLY MEMBER, LIQUID DISCHARGE HEAD, AND MANUFACTURING METHOD OF LIQUID DISCHARGE HEAD - A liquid supply member for supplying a liquid to a liquid discharge head having a discharge port which discharges a liquid, includes: a first member consisting of a resin material; a second member consisting of a resin material; and a supply path formed by joining the first member and the second member to each other, the supplying path supplying a liquid to the liquid discharge head, wherein at least a part of an internal surface of the supply path is a smooth surface smoothed by melting the resin after being molded.05-19-2011
20110018934RECORDING ELEMENT SUBSTRATE, AND INKJET HEAD AND ITS PRODUCTION METHOD - An inkjet head includes a recording element substrate for discharging ink, a supply port penetrating the recording element substrate and serving as an ink flow path, a protrusion formed at a position surrounding the supply port, projecting from one surface of the recording element substrate, and having a first metal layer at a distal end, and a supporting member having a second metal layer welded with the first metal layer and supporting the recording element substrate.01-27-2011
20110085008PRINTHEAD ASSEMBLY HAVING RECESSED PRINTHEAD - A printhead assembly of a body and printhead is provided. The body has a first side, a second side opposed to the first side, the second side having a channel connected to a fluid supply, a recess separately defined in the second side, a plurality of passages defined through the body from the channel to the first side, and a plurality of fluid openings defined through the body from the first side to the recess, the fluid openings being individually connected to the channel via the passages. The printhead has fluid inlets connected to ejection nozzles, the printhead being received in the recess so that the fluid inlets interface with the fluid openings.04-14-2011
20110085007IMAGE FORMATION APPARATUS AND INKJET RECORDING APPARATUS - The image formation apparatus includes: a cylindrical conveyance member which conveys a recording medium in a conveyance direction while rotating in a state where the recording medium is held by suction on a circumferential surface of the cylindrical conveyance member; a liquid ejection head which ejects liquid from an ejection face thereof toward the recording medium being conveyed by the cylindrical conveyance member; and an ejection face protective device which includes a restricting member which restricts floating up of the recording medium by coming in contact with the recording medium at a position in a first region between the ejection face of the liquid ejection head and the circumferential surface of the cylindrical conveyance member or a second region adjacent to the first region, when the recording medium is released from the suction toward the circumferential surface of the cylindrical conveyance member while being conveyed by the cylindrical conveyance member.04-14-2011
20110211018INKJET RECORDING APPARATUS AND METHOD FOR CONTROLLING IT - In order to efficiently perform preliminary ejection of ink at a bend of an ink circulation passage, the number of preliminary ejections of a nozzle group located on the outer side of the bend is set larger than the number of preliminary ejections of a nozzle group located in the middle of the bend.09-01-2011
20100033535DROPLET DISCHARGE HEAD AND INK JET HEAD - A droplet discharge head is provided. The droplet discharge head includes: a discharge port through which a droplet is discharged; a liquid channel which communicates with the discharge port; and an actuator which includes a deformation layer defining a part of wall surfaces of the liquid channel and an electrode facing the liquid channel through the deformation layer, and which causes the deformation layer to deform toward the liquid channel when a drive signal is supplied to the electrode. A groove is formed on a surface of the electrode opposite to the deformation layer.02-11-2010
20100053268Nozzle Arrangement With Laminated Ink Ejection Member And Ink Spread Prevention Rim - A nozzle arrangement for a printhead integrated circuit includes a nozzle chamber; an ink ejection nozzle in fluid communication with said nozzle chamber, the ink ejection nozzle defining a nozzle rim around an aperture of the ink ejection nozzle; an elongate actuator adapted to displace towards and away from the ink ejection nozzle; an ink ejection paddle attached to an end of elongate actuator and positioned within the nozzle chamber for acting on ink within the nozzle chamber upon displacement of the elongate actuator; and an ink spread prevention rim provided partially around the nozzle rim, the ink spread prevention rim for catching ink spread from the nozzle rim. The elongate actuator includes an actuator arm of a laminated structure comprising a resiliently flexible inner layer, a conductive layer and a compensation layer. The inner layer is interposed between the conductive and compensation layers.03-04-2010
20090153618 MANUFACTURING METHOD OF A LIQUID EJECTING HEAD AND A LIQUID EJECTING APPARATUS WITH SAID HEAD - Surfaces of second substrates of head members at the sides opposite to adhesion surfaces with first substrates face each other, the pair of head members is fixed to each other with a sealed space interposed between the surfaces of the second substrates at the sides opposite to the adhesion surfaces with the first substrates, and a solution treatment is performed with respect to the pair of head members fixed 06-18-2009
20090027448PRINTHEAD WITH RECIPROCATING COILS - The present invention relates to a printhead for an inkjet printer. The printhead includes a plurality of nozzle arrangements. Each nozzle arrangement includes a nozzle defining a nozzle chamber in fluid communication with an ink ejection port. A static coil is fixed within the chamber. A movable coil is movably attached within the chamber. An actuator is configured to provide current to the coils so that the movable coil reciprocates relative to the static coil and ink in the chamber is ejected from the ink ejection port.01-29-2009
20110069117IMAGE FORMING METHOD AND INK COMPOSITION - The present invention provides an image forming method and an ink composition whereby deterioration of a head plate, which is formed of silicon, is suppressed, and an image with higher precision is formed stably, the ink composition including an inorganic silicate compound and being ejected to form an image from an ink-jet head having a nozzle plate where a C03-24-2011
20110069118IMAGE FORMING METHOD - The present invention provides an image forming method including ejecting an ink containing a silicic acid compound from an inkjet head, whereby deterioration of the head members is suppressed and a high precision image is formable stably over a long-term, the inkjet head being equipped with plural liquid droplet ejecting elements 03-24-2011
20110069116IMAGE FORMING METHOD AND INK COMPOSITION - The present invention provides an image forming method and an ink composition used in the method by which deterioration of a head plate which is formed of silicon is suppressed and more precise images are stably formed, where ink containing an inorganic silicate compound is ejected to form an image from an inkjet head having a nozzle plate where SiO03-24-2011
20110069120PRINT HEAD SLOT RIBS - A print head die (03-24-2011
20110069119LIQUID DISCHARGE HEAD AND METHOD OF MANUFACTURING THE SAME - A liquid discharge head includes a liquid discharge substrate including a discharge port; a flow path for supplying liquid to the liquid discharge substrate; an absorption member capable of absorbing a laser beam, wherein a first flow path portion constituting a portion of a wall of the flow path is formed on a surface thereof; and a transparent member transparent to a laser beam, wherein a second flow path portion constituting another portion of the wall of the flow path is formed on a surface thereof; wherein the flow path is formed by welding the surfaces of the absorption and transparent members with each other at a periphery of the first flow path portion using a laser beam, and wherein the second flow path portion is constituted by a depression including an inclined surface capable of reflecting a laser beam directed toward the first flow path portion.03-24-2011
20120200637PRESSURE DAMPER, LIQUID JET HEAD, AND LIQUID JET APPARATUS - Provided is a pressure damper (08-09-2012
20100271427PRINTHEAD ASSEMBLY WITH CAPILLARY CHANNELS IN FLUID CHAMBERS - A printhead assembly is provided. The cartridge includes a body assembly defining fluid chambers that each comprise a stack of polymer layers with a micro-capillary array of channels formed therein to form an absorbent assembly. The printhead assembly includes a plurality of printhead integrated circuits (IC) each having a plurality of micro-electromechanical nozzle arrangements for ejecting printing fluid onto a printing medium, in use. The printhead assembly also includes a fluid distribution member operatively arranging each chamber in fluid communication with each IC.10-28-2010
20080246805Ink jet device and method of manufacturing the same - An ink jet device including a plurality of ink channels that are arranged side by side and are covered by a flexible sheet, and a corresponding number of actuators are arranged to exert an actuating force onto the sheet through a bump that has a trapezoidal cross-sectional configuration wherein the bumps are formed on the sheet in such an orientation that their trapezoidal cross-section diverges towards the actuator, and the bumps are bonded to the actuators by means of an adhesive.10-09-2008
20110164090PACKAGE STRUCTURE OF INKJET-PRINTHEAD CHIP - The present invention discloses a package structure of an inkjet-printhead chip. The structure includes: a nozzle structure of a print element including an ink chamber layer, a nozzle base layer on the ink chamber layer, and a nozzle layer on the nozzle base layer, wherein a plurality of nozzle through holes are set in the nozzle layer and pass through an ink chamber of the ink chamber layer; a flexible substrate set on the nozzle layer, wherein there is at least an opening set in the flexible substrate to expose those nozzle through holes; and a chip set under the ink chamber layer. Besides, the present package method is to utilize the micro-manufacturing process to form the nozzle structure of a print element and the tape automatic bonding process to bond the flexible substrate on the nozzle layer and the chip under the ink chamber layer.07-07-2011
20100171792Direct Write and Additive Manufacturing Processes - A Direct Write method of forming components on a substrate by deposition of ink by thermally curing the ink in situ, which method overcomes the need for curing by placing the substrate in an oven. The curing is performed in an exemplary embodiment using an induction coil (07-08-2010
20110254896INKJET PRINTHEAD, IN PARTICULAR FOR SEWING/EMBROIDERING MACHINES, A METHOD FOR MAKING SAID INKJET PRINTHEAD, AND A METHOD FOR COLORING A THREAD - An inkjet printhead, in particular for sewing/embroidering machines, includes a support structure; a plurality of firing cells included in the support structure, each firing cell being adapted to eject ink through a respective nozzle for coloring a thread to be used in a sewing/embroidering machine; a guide element, provided on the support structure, for guiding the thread in a position facing said nozzles. Also disclosed are a sewing/embroidering machine including the printhead and a method for making the printhead.10-20-2011
20110018933INK JET RECORDING HEAD - An ink jet recording head includes a coating resin layer including a plurality of ejection outlets for ejecting ink and a plurality of ink flow passages communicating with the plurality of ejection outlets; a substrate provided with an energy generating element for generating energy for ejecting the ink; and an adhesiveness-improving layer, provided between the coating resin layer and the substrate, for improving adhesiveness between the coating resin layer and the substrate. The adhesiveness-improving layer has a thickness so as to be larger at an end portion of the substrate than that at a portion other than the end portion.01-27-2011
20110096121Filter/wicking structure for micro-fluid ejection head - A micro-fluid ejection head structure and a method for assembling a micro-fluid ejection head structure. The micro-fluid ejection head structure includes a molded, non-fibrous wicking and filtration structure. The wicking and filtration structure is fixedly attached to a filtered fluid reservoir of the micro-fluid ejection head structure for flow of filtered fluid to a micro-fluid ejection head attached to the head structure.04-28-2011
20110096122INKJET NOZZLE WITH PADDLE LAYER ARRANGED BETWEEN FIRST AND SECOND WAFERS - An inkjet nozzle includes a first wafer having active drive circuitry together with an ink jet print nozzle formed therein; a second wafer having an ink channel formed therein; and a paddle layer sandwiched between the first and second wafers in a chamber complementarily defined by the wafers. The paddle layer is in signal communication with the active drive circuitry so that ink supplied via the ink channel is ejected via the print nozzle upon actuation of the paddle layer by the circuitry. The first wafer includes a silicon wafer upon which is fabricated an epitaxial boron doped layer, an epitaxial silicon layer, drive transistors and distribution circuitry forming a CMOS logic and drive transistor level, and a silicon nitride layer.04-28-2011
20100110143Liquid Discharge Apparatus - A liquid discharge apparatus includes a liquid discharge head which reciprocates in a first direction on a predetermined plane, which discharges liquids, and which has connecting ports arranged in a second direction; liquid supply sources which store the liquids; and flexible tubes which are arranged in a state of being bent and each of which constructs a part of a liquid flow passage, and first ends of the tubes are connected to the connecting ports; the tubes are arranged in a third direction intersecting the predetermined plane at fixed portions of the tubes; and each of the tubes has an external shape of which cross section perpendicular to an extending direction of the tube is elliptical; and at least at one of the first end and the fixed portion, a major axis direction of the cross section is the third direction.05-06-2010
20100110142INKJET PRINTHEAD AND METHOD OF MANUFACTURING THE SAME - Inkjet printheads and methods of manufacturing the inkjet printhead are disclosed. The inkjet printhead may include a glue layer disposed between the substrate and a chamber layer. The glue layer may contain a crosslink inhibitor that inhibits cross linkage of a photosensitive resin during an exposing process.05-06-2010
20100214360Fluid-ejection device having rollers - A first roller has a first roller center line; a second roller has a second roller center line. Fluid-ejection mechanisms eject fluid onto the media as the media is rolled past the rollers, and include first mechanisms and second mechanisms. The first mechanisms include first and second printheads, at least substantially equally between which a first positioning line is defined. The second mechanisms include third and fourth printheads, at least substantially equally between which a second positioning line is defined. The fluid-ejection mechanisms are disposed opposite to the roller and are positioned such that the first and second positioning lines are located between the first and second roller center lines, the first and the third printheads are not completely located between the first and the second roller center lines, and the second and the fourth printheads are completely located between the first and the second roller center lines.08-26-2010
20110148986Liquid jet head and liquid jet apparatus - Provided is a liquid jet head (06-23-2011
20090174751DROPLET DISCHARGING DEVICE AND METHOD FOR HEATING FUNCTIONAL LIQUID THEREOF - A method is for heating a functional liquid of a droplet discharging device that has a storage which houses a container storing a functional liquid containing a functional material; a droplet discharge head discharging the functional liquid in a droplet; a cooling means included to the storage and cooling the functional liquid; and a supply tube supplying the functional liquid that is cooled in the storage to the droplet discharge head. The method includes: heating the functional liquid in the supply tube with waste heat that is generated correspondingly to cooling of the cooling means.07-09-2009
20090174752LIQUID DISCHARGE METHOD, LIQUID DISCHARGE HEAD AND LIQUID DISCHARGE APPARATUS - A liquid discharge head is arranged in a manner that in the cross section of a discharge port in a liquid discharge direction, the discharge port includes: at least one projection that is convex inside the discharge port; a first area, for holding a liquid surface connecting a pillar-shaped liquid that is elongated outside the discharge port; and second areas where a fluid resistance is lower than that in the first area so as to pull the liquid in the discharge port in a direction opposite to the liquid discharge direction; and the first area is formed in the direction in which the projection is convex, and the second areas are formed on both sides of the projection.07-09-2009
20080211869Mounting arrangement with a support and pressure plate for a printhead assembly. - The invention provides for a mounting arrangement for a printhead assembly having a plurality of modular printhead tiles each having a plurality of micro-electromechanical nozzle arrangements for printing on a printing medium. Each tile has a flex PCB with which to provide the tile with electrical energy. The mounting arrangement includes a support defining retaining clips and channels operatively housing electrical busbars, as well as a pressure plate defining holes shaped and dimensioned to complementarily receive the retaining clips to engage the support which urges the flex PCBs against the busbars to provide electrical power to printhead tiles.09-04-2008
20100156989INJECTION MOLDED MOUNTING SUBSTRATE - The present invention relates to a fluid ejection assembly that includes an injection-molded mounting substrate that is formed by a two-shot injection molding process, wherein a housing portion of the mounting substrate is formed by a first shot molding, and a die-attach portion of the mounting substrate is formed within the housing portion by a second shot molding.06-24-2010
20110304671INKJET PRINTHEAD WITH SELF-CLEAN ABILITY FOR INKJET PRINTING - Described is a process for producing an inkjet printhead comprising an aperture face having an oleophobic surface. The process includes forming an aperture plate by disposing a silicon layer on an aperture plate; using photolithography to create a textured pattern on an outer surface of the silicon layer; and chemically modifying the textured surface by disposing a conformal, oleophobic coating on the textured surface. The oleophobic aperture plate may be used as a front face surface for an inkjet printhead.12-15-2011
20110050803SELF-ASSEMBLY MONOLAYER MODIFIED PRINTHEAD - Described herein are printheads for inkjet printing and, more specifically, printheads modified with a self-assembly monolayer (SAM). Also described are processes for making and using the printheads as well as processes for forming patterns and images on a substrate including jetting inkjet inks or jettable materials using a printhead for inkjet printing that has been modified with a self-assembly monolayer.03-03-2011
20090195604INK-JET PRINTHEAD AND MANUFACTURING METHOD THEREOF - The present invention provides a process for manufacturing an ink-jet printhead comprising the steps of providing a print head wafer comprising a plurality of print head dice, each print head die comprising a nozzle plate bonded to a barrier layer formed on a substrate, wherein said plurality of print head dice are arranged on the substrate so as to define at least one first dividing channel comprising at least one first channel portion, said at least one first channel portion having a bottom portion comprised between the lateral sides of said barrier layer of at least two adjacent print head dice and an upper portion comprised between the lateral sides of said nozzle plate of said at least two adjacent print head dice, and applying an adhesive composition in an amount able to substantially fill the whole length of said at least one first channel portion.08-06-2009
20120098887LIQUID DISPENSER INCLUDING SLOPED OUTLET OPENING WALL - A liquid dispenser includes a liquid supply channel, a liquid return channel; and a liquid dispensing channel. The liquid dispensing channel includes a wall. The wall includes a surface. A portion of the wall defines an outlet opening. The outlet opening includes a downstream edge relative to a direction of liquid flow through the liquid dispensing channel. The downstream edge is sloped relative to the surface of the wall of the liquid dispensing channel. A liquid supply provides liquid that flows from the liquid supply channel through the liquid dispensing channel to the liquid return channel. A diverter member selectively diverts a portion of the flowing liquid through the outlet opening of the liquid dispensing channel.04-26-2012
20110090284Printing Apparatus, Discharge Inspecting Apparatus and Discharge Inspecting Method - The printing apparatus includes: a head which discharges liquid from a nozzle and is grounded; a detection electrode which is opposed to the nozzle at a predetermined interval and is sealed by an insulating member; a power source which ensures the detection electrode is at a predetermined potential; a determining unit which detects a change in potential of the detecting electrode that is caused by the discharge of the liquid from the nozzle and determines a nozzle that does not normally discharge the liquid to the head on the basis of the change in potential of the detection electrode; and a cap portion which abuts the head during non-printing and accommodates the detection electrode.04-21-2011
20120056938TANK UNIT AND LIQUID EJECTING SYSTEM HAVING TANK UNIT - A tank unit includes two or more liquid accommodating containers disposed in a row. Each of the liquid accommodating containers includes a main body having a concave shape defining a side opening and a film that blocks the side opening. The main body and the film at least partially define a liquid accommodating chamber for accommodating a liquid. The main body includes a facing wall that faces the film across the liquid accommodating chamber and has a wall larger than the side opening. The liquid accommodating containers are disposed such that the film of at least one of the liquid accommodating containers is covered by the facing wall of an adjacent one of the liquid accommodating containers.03-08-2012
20120026246LIQUID EJECTION HEAD AND METHOD FOR PRODUCING THE SAME - A liquid ejection head includes a substrate having an energy-generating device configured to generate energy used for ejecting a liquid from an orifice; a transparent channel wall member forming an inner wall of a channel leading to the orifice; and an intermediate layer disposed between and in contact with a surface of the substrate and the channel wall member and having a refractive index different from a refractive index of the channel wall member. The intermediate layer has a first outer end surface forming contours of a symbol as viewed in a direction from the orifice toward the substrate and making a first angle with the surface of the substrate and a second outer end surface facing the channel and making a second angle with the surface of the substrate. The first angle is an obtuse angle. The second angle is smaller than the first angle.02-02-2012
20110043569DROP EJECTOR HAVING MULTI-LOBED NOZZLE - A nozzle for a drop ejector is shaped as a plurality of lobes adjoining a central opening region and extending along a radial direction away from the central region. Each lobe increases in width as distance from the central region increases. The nozzles include sidewalls that converge toward the central opening region of the nozzle, giving the lobe a teardrop shape. Because the central part of the nozzle opening is constricted the ink that is ejected pinches off in the center and provides several advantages such as straighter trajectory, shorter tails, better accuracy, smaller ink volume, and less satellite effects.02-24-2011
20110090285PRINTHEAD HAVING DISPLACABLE NOZZLES - A printhead is provided having a plurality of nozzles defined on a substrate. Each nozzle is configured to hold fluid and has an ejection port and an actuator for moving the nozzle relative to the substrate to eject the held fluid through the ejection port.04-21-2011
20110102508Laminate substrate having bypass valve structure, inkjet print head and micro pump using the same - There is provided a laminate substrate having a bypass valve structure. The bypass valve structure formed in the laminate substrate includes a sloped path connecting a first straight path with a second straight path, and a bypass path connected with at least one of the first and second straight paths and configured as a curved path.05-05-2011
20100289854MANUFACTURING METHOD FOR LIQUID EJECTING HEAD UNIT, AND LIQUID EJECTING APPARATUS - A liquid ejecting head unit includes liquid ejecting heads, each having a row of nozzles that eject liquid. The liquid ejecting heads are anchored to a base plate. An anchoring plate is anchored to the base plate and positions the liquid ejecting heads relative to the base plate. A reference mark is formed in the anchoring plate and a positioning mark is formed in the base plate for positioning the anchoring plate relative to the base plate. The positioning marks are formed along the direction in which the nozzles are arranged in a row. A related manufacturing method includes selecting the positioning mark in accordance with a predetermined resolution and anchoring the anchoring plate to the base plate so that the reference mark and the selected positioning mark are in the same relative positional relationship. The liquid ejecting heads are anchored to the base plate using the anchoring plate.11-18-2010
20100289853RECYCLABLE CONTINUOUS INK JET PRINT HEAD AND METHOD - A recyclable continuous ink jet print head is provided that includes a manifold formed from a metal such as stainless steel, a die having ink jet nozzles formed from a ceramic material such as silicon, a control circuit connected to the die via microwiring, and an interposing member disposed between the manifold and the die. The interposing member is formed from a composite material such as Al—SiC having a coefficient of thermal conductivity that is higher than that of the silicon die, and a coefficient of thermal expansion (CTE) that is between that of the die and the manifold. During manufacture, the CTE value of the interposing member allows long-lasting, heat-cured epoxy compositions to be used to bond the die to the manifold and to encapsulate the microwiring between the die and a control circuit with while maintaining proper alignment of the die ink jet nozzles on the manifold. When the die wears out, the high thermal conductivity of the interposing member allows the die to be easily removed from the manifold, thereby facilitating re-cycling of the manifold.11-18-2010
20100245474METHOD FOR MANUFACTURING LIQUID FLOW PASSAGE UNIT, LIQUID FLOW PASSAGE UNIT, LIQUID EJECTING HEAD UNIT, AND LIQUID EJECTING APPARATUS - A method for manufacturing a liquid flow passage unit that is disposed between a liquid supply source storing liquid and a head main body and that forms a part of a flow passage leading from the liquid supply source to the head main body, includes bringing a film member into contact with a protrusion formed on the edge of an opening of a flow passage for liquid formed in a main body member made of resin, so as to cover the opening with the film member, pressing the film member covering the opening toward the flow passage, so as to apply a predetermined tension to the film member, and integrally molding a sealing member by pouring resin on the edge of the tensioned film member, so as to fix the film member between the sealing member and the main body member.09-30-2010
20120127238INKJET EJECTOR ARRAYS ALIGNED TO A CURVED IMAGE RECEIVING SURFACE WITH INK RECIRCULATION - A printhead assembly includes a plurality of inkjet ejector arrays having corresponding ink receptacles. Each inkjet array is formed from a plurality of inkjet stack layers that are bonded to a single aperture layer, and the inkjet arrays are positioned with a predetermined alignment about a curved image receiving surface.05-24-2012
20100194821INK JET RECORDING APPARATUS - An ink jet recording apparatus in which a head supporting plate having a line head mounted thereon which comprises a plurality of short heads staggered is attached to a carriage whereby recording is performed by ink jet printing with the line head on a recording medium positioned beneath the carriage is rendered capable of using ordinary short heads.08-05-2010
20090058930PRINTHEAD UNIT CELL HAVING RIMMED NOZZLE PLATE - A unit cell of a printhead is provided having a multi-layer substrate defining an ink inlet, one or more side walls extending from the substrate around the ink inlet, a nozzle plate supported by the side walls to define a chamber in fluid communication with the ink inlet, where the nozzle plate defines an aperture through which ink in the chamber can be ejected, and a looped and elongate heater element suspended within the chamber, which can be heated so that bubbles are generated in ink within the chamber and ink is ejected from the aperture. The nozzle plate defines a protruding rim bounding the aperture.03-05-2009
20090058931BONDED PRINTHEAD ASSEMBLY - A bonded printhead assembly comprising at least one printhead integrated circuit having a plurality of etched ink supply channels defined in a first bonding surface thereof each ink supply channel extending longitudinally along said first bonding surface a molded ink manifold having a second bonding surface and an adhesive tape sandwiched between the first bonding surface and the second bonding surface said adhesive tape having a plurality of ink supply apertures defined therein.03-05-2009
20120249680INKJET HEAD - An inkjet head with a harmonica-type head tip is configured in a way that wirings electrically connected to drive electrodes within channels are led rearward from a rear surface of the head tip. A groove is provided along en array direction of the channels in areas on the rear surface of the head tip in which the channels are not formed. A lead-out electrode, which is electrically connected to drive electrodes, is formed from the rear surface of the head tip to the interior of the groove. One end of a wiring member, which has connecting wirings upon an insulating material corresponding to the lead-out electrodes, is inserted into the groove. The drive electrode is electrically connected to the connecting wiring via the lead-out electrode as a result of the electrical connection of the connecting wiring within the groove to the lead-out electrode10-04-2012
20100007697RECORDING HEAD AND MANUFACTURING METHOD THEREOF - A recording head includes a stacked body including: a liquid flow path; a plurality of plates stacked on each other; and two communicating holes. Each of the plurality of plates includes: a cross-sectional portion of the liquid flow path; a positioning hole; and a reference hole. Locations of the positioning hole and the reference hole of a plate of the plurality of plates correspond to locations of the reference hole and the positioning hole, respectively, of a plate adjacent to the one plate such that, when the plates are stacked, the positioning holes and the reference holes of adjacent plates alternate to communicate with each other so as to form the two communicating holes, the diameters of the positioning holes of the plurality of plates being successively smaller in order from one side to another side of the stacked body relative to a stack direction of the plurality of plates.01-14-2010
20120188308INKJET PRINTHEADS AND FLUID EJECTING CHIPS - Disclosed is an inkjet printhead that includes a plurality of fluid ejecting chips arranged in a plurality of rows. The plurality of fluid ejecting chips includes a first set of fluid ejecting chips arranged in a first row of the plurality of rows. The plurality of fluid ejecting chips includes a second set of fluid ejecting chips arranged in a second row parallel to the first row of the plurality of rows. Each fluid ejecting chip of the second set of fluid ejecting chips is configured between two consecutive fluid ejecting chips of the first set of fluid ejecting chips in a predetermined orientation. The inkjet printhead further includes a plurality of fluid vias and a plurality of bond pads. Further disclosed are fluid ejecting chips for being used in an inkjet printhead.07-26-2012
20090021558Liquid discharge apparatus and method for producing liquid discharge apparatus - There is provided a liquid discharge apparatus which includes a liquid channel which connects a discharge port and a pressure chamber; a piezoelectric layer one surface of which facing the pressure chamber; a power feeding electrode which applies a voltage to the piezoelectric layer; and a liquid electroconductive material which electrically connects the other surface of the piezoelectric layer and the power feeding electrode, and in an area on the other surface, of the piezoelectric layer, overlapping with the pressure chamber, a contact area which is an electrical contact between the piezoelectric layer and the liquid electroconductive material is formed. Accordingly, it is possible to provide a liquid discharge apparatus which is capable of realizing a small size channel unit and an improvement in a resolution of an image which is formed by a discharging liquid, and to change appropriately a shape of the piezoelectric layer.01-22-2009
20120081462FLUID DISPENSING APPARATUS AND METHOD THEREOF - A fluid dispensing apparatus including a fluid ejector including a fluid reservoir having fluid, and configured to eject the fluid, a vacuum pump configured to create negative pressure in an activation mode and to create approximately no pressure in a deactivation mode, a meniscus pressure regulator configured to regulate the negative pressure received from the vacuum pump, a leaking member configured to reduce the negative pressure received from the vacuum pump towards or equal to atmospheric pressure in response to the vacuum pump being placed in the deactivation mode, and a back pressure regulator having a pressure reference port to receive the reduced negative pressure from the leaking member and the regulated negative pressure from the meniscus pressure regulator, the back pressure regulator configured to maintain a non-retraction negative pressure value to position a fluid meniscus in a non-retracted state and a retraction negative pressure value to position the fluid meniscus in a retracted state.04-05-2012
20120229568LIQUID EJECTION HEAD AND LIQUID EJECTION APPARATUS - A liquid ejection head includes a head main body which discharges liquid, a flow path member main body on which a liquid reception member for receiving liquid supplied from the outside is formed, a first case, a second case, and a first insertion portion which is provided on the flow path member main body and through which a securing member for securing the first case, the second case, and the flow path member main body to one another is inserted. In the liquid ejection head, the first insertion portion is formed such that the outer wall covers an exposing portion from which the securing member is exposed.09-13-2012
20100315467LIQUID DISCHARGE HEAD AND MANUFACTURING METHOD THEREOF - A liquid discharge head includes, a substrate, a flow path wall member provided with a wall of a liquid flow path connected to a discharge port for discharging liquid, the flow path being formed by the flow path wall member and one surface of the substrate which are in contact with each other, and a coated resin member made of a cured material of a resin composition provided to cover end surfaces of the substrate, wherein a liquid repellent member having a contact angle of the resin composition larger than that of both the flow path wall member and the one surface is provided to cover at least a part of an intersection line between an outer lateral surface of the flow path wall member and the one surface.12-16-2010
20120320129PLATEN UNIT AND LIQUID EJECTING APPARATUS - A platen unit includes a supporting member that is grounded and is made of a metal, a platen supporting member that is provided on the supporting member, includes an inner space, is formed of a conductive resin, and includes a first contact point, a platen that is provided on the platen supporting member, is formed of a conductive resin, and includes a second contact point which contacts the first contact point, and a seal member that is provided between the platen supporting member and the platen.12-20-2012
20090073228THROUGH-HOLE FORMING METHOD, INKJET HEAD, AND SILICON SUBSTRATE - A through-hole forming method includes steps of forming a first impurity region (03-19-2009
20120327160PLATEN UNIT AND LIQUID EJECTING APPARATUS - A platen unit includes a supporting member, a first member that is provided on the supporting member and includes an inner space, a second member that is provided on the supporting member and includes an inner space, a first platen in which at least a portion is provided on the first member and which includes holes communicating with the inner space of the first member, and a second platen that is provided on the first member and the second member, includes holes communicating with the inner space of the first member, and holes communicating with the inner space of the second member.12-27-2012
20120092415LIQUID EJECTING HEAD UNIT AND LIQUID EJECTING APPARATUS - A recording head includes flange portions to which spacers are anchored on both sides of the recording head with a head case therebetween. Spacer attachment holes are provided in the flange portions in the center of the width direction orthogonal to a nozzle row in the recording head, and a round hole and an oblong hole relative to the spacers are provided in the flange portions in positions that are distanced from a center line in the width direction. Positioning holes for the flange portions are provided in the spacers in positions that correspond to the round hole and the oblong hole in the flange portions, and the spacers are anchored to the flange portions on both sides so as to be oriented symmetrically to each other, in a positioned state in which the positions of the positioning holes are aligned with the round hole and the oblong hole.04-19-2012
20120139996PRINT HEAD - A print head includes a fluid cavity and nozzle in fluid communication with the fluid cavity. A stopper is positioned adjacent the nozzle and adapted to control flow of fluid through the nozzle. An arm supports the stopper and is configured to pivotally move the stopper with respect to the nozzle. An electromagnet is positioned adjacent the arm and configured to move the arm toward the electromagnet to open the nozzle.06-07-2012
20130016160LIQUID EJECTING APPARATUS AND LIQUID EJECTING METHOD - A liquid ejecting apparatus includes: a first nozzle row in which first nozzles ejecting a first liquid are arranged in a predetermined direction; a second nozzle row in which second nozzles ejecting a second liquid are arranged in the predetermined direction; a movement mechanism moving the first and second nozzle rows in a movement direction intersecting the predetermined direction relative to a medium; a transport mechanism transporting the medium in the predetermined direction relative to the first and second nozzle rows; and a control unit repeating an image forming operation of ejecting the liquids from the first and second nozzles while moving the first and second nozzle rows in the movement direction by the movement mechanism and a transport operation of transporting the medium in the predetermined direction relative to the first and second nozzle rows by the transport mechanism.01-17-2013
20110157276Superoleophobic and Superhydrophobic Devices And Method For Preparing Same - A process for preparing a flexible device having a textured superoleophobic surface comprising providing a flexible substrate; disposing a silicon layer on the flexible substrate; using photolithography to create a textured pattern in the silicon layer on the substrate wherein the textured pattern comprises an array of pillars; and chemically modifying the textured surface by disposing a conformal oleophobic coating thereon; to provide a flexible device having a superoleophobic surface and, in embodiments, to provide a flexible device having a surface that is both superoleophobic and superhydrophobic.06-30-2011
20110157277Superoleophobic and Superhydrophobic Surfaces And Method For Preparing Same - A process for preparing a flexible device having a superoleophobic surface comprising providing a flexible substrate; disposing a silicon layer on the flexible substrate; using photolithography to create a textured pattern in the silicon layer on the substrate wherein the textured pattern comprises a groove structure; and chemically modifying the textured surface by disposing a conformal oleophobic coating thereon; to provide a flexible device having a superoleophobic surface.06-30-2011
20120242748SCREEN PRINTED FUNCTIONAL MICROSYSTEMS - Micro fluidic devices comprising three dimensional elements fabricated onto a substrate using thick film printing technology, e.g., screen printing, wherein the three dimensional elements possess both structural and functional properties.09-27-2012
20080252689LIQUID DISCHARGE HEAD AND METHOD FOR MANUFACTURING THE SAME - A method for manufacturing a liquid discharge head including an energy generating element, which generates energy utilized for discharging a liquid, and a discharge portion provided at a position facing the energy generating element and having a discharge port for discharging the liquid is provided. This method includes the steps of forming a negative photosensitive resin layer used for a member that forms the discharge port on the substrate, and exposing the layer to an i-line to form the discharge portion that is tapered in a direction from the substrate to the discharge port, wherein the layer has an absorbance per 1 μm thickness of about 0.02 to about 0.07 for light used for the exposure.10-16-2008
20130135391MULTI-FILM ADHESIVE DESIGN FOR INTERFACIAL BONDING PRINTHEAD STRUCTURES - In accordance with aspects of the present disclosure, a printhead assembly arranged to dispense ultraviolet curable ink or gel ink and method thereof is disclosed. The printhead assembly includes a plurality of functional plates stacked together; a first adhesive layer arranged between adjacent functional plates to provide bonding between the plates; and a second adhesive layer arranged between adjacent function plates to provide chemical resistance to the ultraviolet curable ink or the gel ink.05-30-2013
20080204509Droplet Deposition Apparatus - An ink jet printhead has a first array of actuable side walls defining channels, the actuable sidewalls being displaceable to cause a pressure change in selected channels, alternate channels in the array being firing channels; and a second array of parallel side walls offset in a channel height direction to define channel extension regions opening to a respective firing channel. A nozzle communicates with each channel extension region. The spacing between adjacent side walls in the second array is large to reduce impedance and the spacing between adjacent actuable side walls in the first array is small to provide for efficient actuation.08-28-2008
20110273513Wind Baffles for Micro-Fluid Ejection Devices - A micro-fluid ejection device defines a print gap from an ejection head to a print media. An ejection zone of the head ejects fluid across the print gap during use. At least one wind baffle adjacent the ejection zone modifies airflow in the print gap as the head scans. In various designs, multiple wind baffles reside on either sides of the ejection zone to provide a cascading airflow effect from one wind baffle to the next. Baffle shapes, spacing and locations define multiple embodiments.11-10-2011
20110273514Inkjet print head and method of manufacturing the same - Disclosed are an inkjet print head and a method of manufacturing the same. An inkjet print head according to an aspect of the invention may include: an inkjet board having an ink passage therein; a cutting portion provided outside the ink passage of the inkjet board and having a cutting surface created by separation into head chip units of the inkjet board; and an auxiliary cutting portion provided from one surface of the cutting portion inwardly in a thickness direction of the inkjet board, and assisting the separation into head chip units of the inkjet board.11-10-2011
20110221822LIQUID EJECTION HEAD AND LIQUID EJECTION APPARATUS - A liquid ejection head and a liquid ejection apparatus improved in printing quality by reducing the occurrence of chipping at an opening edge of a positioning hole by a positioning pin are provided. The liquid ejection head includes a head body having a nozzle opening that discharges ink, a base plate provided with the positioning pin, and a positioning plate formed of a silicon substrate and provided with the positioning hole, and the head body is arranged at a predetermined position on the base plate by inserting the positioning pin through the positioning hole, and the opening edge of the positioning hole on the side from which the positioning pin is inserted is chamfered.09-15-2011
20130147879ACTUATOR DEPRIME FOR BUBBLE CONTROL FOR INK JET PRINTHEAD - A method and structure for depriming an ink jet printhead. To deprime ink from a printhead at a location between a nozzle (aperture) and a particulate filter (rock screen), a force (pressure) is applied to the ink. The pressure can either be a positive pressure applied to the nozzle from the outside of the aperture plate or a negative pressure (vacuum) applied at a location upstream from the particulate filter. Because openings within the particulate filter are each smaller than the nozzle, there exists a force which is sufficient to move a meniscus of the ink from the nozzle back to the particulate filter, but which is insufficient to move the meniscus beyond the particulate filter, for example due to a surface tension of the meniscus of the ink.06-13-2013
20100309253PRINTHEAD HAVING CAPPED FLUID PASSAGES - A printhead is provided having a casing mounted on a moulding to define a fluid reservoir and a first passage in fluid communication between the fluid reservoir, a wafer at least defining at least a part of a channel spaced from the first passage and at least a part of a second passage arranged to provide fluid communication between the first passage and channel, a plurality of ink ejection devices in fluid communication with the channel, and a metal cap portion which encloses the casing and moulding.12-09-2010
20120274705PRINTHEAD ASSEMBLY - An apparatus is provided, the apparatus including a printhead die, a base coupled to the printhead die, a flexible circuit mounted on the base and electrically connected to the printhead, and an adhesive sandwiched between the base and the flexible circuit. The base defines a trench with a sidewall having scallops formed therein. The adhesive is disposed in the trench to secure the flexible circuit to the base.11-01-2012
20110242215Liquid Ejection Head and Image-Forming Apparatus Using the Same - A liquid ejection head according to the present invention includes a plurality of ejection openings arranged in a first direction and a plurality of electro-thermal transducers for ejecting liquid from the ejection openings, the liquid ejection head and a printing medium being subjected to the relative movement, wherein an arrangement pitch of the ejection openings forming an end group located in the respective opposite end section along the first direction is longer than an arrangement pitch of the ejection openings forming a central group located in the central section along the first direction. According to the present invention, it is possible to eliminate white streaks which may generate in a solid printing.10-06-2011
20110242214LIQUID JETTING HEAD AND INK-JET PRINTER - There is provided a liquid jetting head which includes a cavity unit in which a plurality of nozzle rows is formed, a plurality of pressure chambers, and a plurality of common liquid chambers corresponding to the nozzle rows, and a pressure applying mechanism which applies a pressure to the liquid in the pressure chambers. The liquid is supplied to each common liquid chamber, from both end portions in a longitudinal direction of the common liquid chamber, toward a central portion of the common liquid chamber, and a position of an equilibrium point at which a channel resistance of both sides in the longitudinal direction is balanced, is shifted mutually in the longitudinal direction in one of the common liquid chambers and an adjacent common liquid chamber which is adjacent to the one of the common liquid chambers.10-06-2011
20110234699FLUID EJECTING APPARATUS - A printer includes a printing head having nozzle rows formed from a plurality of nozzles, in which the nozzles for ejecting the ink in the Z-axis direction are discretely arranged in the Y-axis direction; a linear absorbing member which is spaced apart from the nozzles at a predetermined distance in the Z-axis direction, is tensed in the Y-axis direction, and has a ink receiving region capable of receiving the ink with the predetermined width in the X-axis direction; and the moving mechanism which moves the absorbing member to the flushing position in which the nozzle row and the ink receiving region to be opposed to each other in the Z-axis direction, and in which the nozzle row and the center line of the absorbing member are differently positioned in the X-axis direction, when preliminary ejecting the ink from the nozzle rows.09-29-2011
20110234698LIQUID JET HEAD, LIQUID JET RECORDER AND METHOD FOR FILLING LIQUID JET HEAD WITH LIQUID - A liquid jet head including: an opening and closing mechanism for, in an open state, opening a wall portion release opening (09-29-2011
20110285788LIQUID DISCHARGE HEAD AND CIRCUIT BOARD - A liquid discharge head includes a liquid discharge head substrate including a discharge port through which a liquid is discharged, and a plurality of energy generating elements that generate energy for discharging the liquid from the discharge port, and a circuit board having flexibility including a pair of differential transmission lines for transmitting differential transmission signals used as logical signals for driving the energy generating elements, to the liquid discharge head substrate, and a voltage supply line for supplying a voltage applied to the energy generating elements to obtain the energy, to the liquid discharge head substrate, wherein the pair of differential transmission lines is provided on one surface of the circuit board, and the voltage supply line is provided on the other surface of the circuit board, which is on a reverse side of the one surface.11-24-2011
20110304672PRINTHEAD ASSEMBLY WITH MOLDED INK MANIFOLD HAVING POLYMER COATING - A printhead assembly includes: a molded ink manifold having a plurality of ink outlets defined in a manifold bonding surface; and printhead integrated circuits bonded to the manifold bonding surface. The manifold bonding surface includes a polymer coating, which plugs fissures in the molded ink manifold.12-15-2011
20120019597INKJET PRINTHEAD WITH CROSS-SLOT CONDUCTOR ROUTING - An inkjet printhead includes a substrate having an ink slot formed through its center. Integrated circuitry is formed on both a first side and a second side of the center ink slot. A conductor trace is routed across the ink slot to provide electrical communication between the integrated circuitry on the first and second sides of the slot.01-26-2012
20120019596Inkjet print head and method for manufacturing the same - An inkjet print head and a method for manufacturing the same are provided. The inkjet print head includes: an upper board having a pressure chamber; and a lower board including an upper silicon layer, an insulating layer, and a lower silicon layer, wherein the lower board includes a projection formed of the upper silicon layer and protruded into the interior of the pressure chamber in order to reduce the space of the pressure chamber, and a lower surface of the upper board and an upper surface of the lower silicon layer are fixed.01-26-2012
20120293584FLUID EJECTION DEVICES AND METHODS FOR FABRICATING FLUID EJECTION DEVICES - Disclosed is a fluid ejection device for an inkjet printer that includes a substrate having at least one fluid flow channel configured within a bottom portion of the substrate. Each fluid flow channel of the at least one fluid flow channel is configured by etching the bottom portion. The substrate also includes a plurality of fluid flow vias configured within a top portion of the substrate. Each fluid flow via of the plurality of fluid flow vias is configured by etching the top portion. The each fluid flow via is further configured to be in fluid communication with a corresponding fluid flow channel through an isotropically etched cavity configured below the each fluid flow via and fluidically coupled to the corresponding fluid flow channel. The fluid ejection device also includes a flow feature to layer and a nozzle plate. Further disclosed are methods for fabricating fluid ejection devices.11-22-2012
20130201255MANIFOLD ASSEMBLY FOR FLUID-EJECTION DEVICE - A manifold assembly for a fluid-ejection device having multiple-fluid type fluid-ejection printheads organized in a page-wide array includes a lower-most deck and an upper-most deck. The lower-most deck is to supply a first type of fluid and a second type of fluid to the fluid-ejection printheads. The first type of fluid and the second type of fluid are exterior-most fluids ejected by the fluid-ejection printheads in relation to a direction of media movement through the fluid-ejection device. The upper-most deck is to supply a third type of fluid and a fourth type of fluid to the fluid-ejection printheads. The third type of fluid and the fourth type of fluid are interior-most fluids ejected by the fluid-ejection printheads in relation to the direction of media movement through the fluid ejection device.08-08-2013
20120075384PRINT HEAD WITH SECURITY ASSEMBLY - A print head includes a nozzle plate, a fixing plate fixed to the nozzle plate, an oscillation sheet, and a security assembly. The fixing plate defines a receiving groove. The oscillation sheet is fixed between the fixing plate and the nozzle plate and covers the receiving groove. The security assembly includes a fixing component, an elastic component, a fixing element, an anti-detachable component, and a pointed tip extending from a distal end of the anti-detachable component. The security assembly is fixed to the fixing plate, the elastic component and the anti-detachable component are received in the receiving groove with the pointed tip pointed towards the oscillation sheet. A first end of the compressed elastic component resists against the fixing component and a second end of the elastic component resists the anti-detachable component.03-29-2012

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