Abstract: A method of assembling an inkjet printhead comprising providing a printhead chassis; providing a support surface; affixing a printhead die to a die location portion of the support surface; affixing a portion of an attachment surface of a flexible circuit to the support surface adjacent to the die location portion of the support surface; electrically connecting the printhead die to the flexible circuit; affixing a spacer member to a surface of the flexible circuit that is opposite the attachment surface; applying an encapsulating material in contact with the printhead die, the flexible circuit, and the spacer member; and curing the encapsulating material.

Abstract: An ink supply structure includes at least one ink cartridge, at least one dye ink chamber, and at least one pigment ink chamber. The at least one dye ink chamber is contained in the at least one ink cartridge for storing a dye ink. The at least one pigment ink chamber is contained in the at least one ink cartridge for storing a pigment ink. One of the dye ink within the dye ink chamber and the pigment ink within the pigment ink chamber is selectively supplied from the at least one ink cartridge.

Abstract: An object of the invention is to provide a method of manufacturing a liquid droplet ejection head that is capable of realizing cost reduction by a simple process and obtaining ejection reliability over a long period of time. The method includes: forming a water repellent film on a nozzle forming substrate having a nozzle hole and inside the nozzle hole; adhering a protective film on the water repellent film that is formed on the surface of the nozzle forming substrate; removing the water repellent film formed inside the nozzle by a plasma treatment; and peeling the protective film, wherein polysiloxane is not contained in an adhesion component and a base material of the protective film.

Abstract: A liquid ejection head manufacturing method includes, in the following order, preparing a substrate having a flow path mold; arranging a first layer serving as a flow path wall member so as to cover the flow path mold; curing a portion of the first layer serving as a flow path sidewall; arranging a second layer so as to cover the cured portion of the first layer and the flow path mold; planarizing the second layer by pressing the second layer toward the substrate; arranging the ejection port in the first layer and the second layer; and forming the flow path by removing the flow path mold.

Abstract: A wide-array inkjet printhead assembly with die carriers includes a backbone which delivers fluid through a manifold with a number of openings. The openings are spaced apart according to a opening pitch. A plurality of inkjet die includes trenches with a trench pitch which is smaller than the opening pitch. A plurality of die carriers include a plurality of oblique tapered channels, with one end of the oblique tapered channels having pitch matching the opening pitch and interfacing with the backbone and the opposite end of the oblique tapered channels having a pitch matching the trench pitch and interfacing with the inkjet die. A method for assembling a wide-array inkjet printhead assembly is also described.

Abstract: The present invention is a method of manufacturing a liquid discharge head, which includes providing a substrate on which a solid member is disposed to surround a region that becomes the flow path, and a metal layer made of a metal or a metal compound is disposed inside of the region, forming a mold made of a metal or a metal compound inside of the region, disposing a cover layer made of a resin to cover the solid member and the mold in contact with the solid member and the mold wherein the solid member and the metal are formed with a distance therebetween, and removing the mold to form the flow path.

Abstract: Disclosed is a process for preparing an ink jet printhead which comprises: (a) providing a diaphragm plate having a plurality of piezoelectric transducers bonded thereto; (b) aligning an electrical circuit board having a fill joint with the piezoelectric transducers and temporarily attaching the electrical circuit board to the piezoelectric transducers, thereby creating a layered structure having interstitial spaces between the diaphragm plate, the piezoelectric transducers, and the electrical circuit board; (c) applying a thermoset polymer through the fill joint and allowing it to fill the interstitial spaces via capillary action; and (d) curing the thermoset polymer to form an interstitial polymer layer.

Abstract: A method for manufacturing an inkjet recording head includes preparing a substrate having a mold to become an ink flow passage and an orifice layer covering the mold, and immersing the substrate in a solvent, whereby in immersing the substrate in the solvent, the mold at the substrate immersed in the solvent is irradiated with deep-UV light.

Abstract: A liquid discharge head includes piezoelectric members including: a pressure chamber applying a pressure for discharging liquid to liquid; a first electrode provided on an inner surface side of the pressure chamber; and a second electrode provided outside the pressure chamber, the piezoelectric members being arranged in a first direction intersecting with an ink flow direction and in a second direction crossing the ink flow direction and the first direction so that the flow directions of the liquid flowing through the pressure chamber of the piezoelectric members are arranged along one another. The head includes first common wiring lines connected to the first electrodes arranged in the first direction; and second common wiring lines connected to the second electrodes 23 arranged in the second direction. The first common wiring lines are arranged in the second direction and the second common wiring lines are arranged in the first direction.

Abstract: A method of manufacturing a flow channel substrate, includes the steps of: forming two uneven shapes on a substrate in such a manner that the two uneven shapes follow a liquid flow channel at perimeters of a location where the liquid flow channel is to be formed and the two uneven shapes are configured to prevent a dissolvable resin forming a sacrificial layer from spreading during a heat treatment; forming, between the two uneven shapes on the substrate, the sacrificial layer which is made of the dissolvable resin and has a shape of the liquid flow channel; applying, by the heat treatment, a rounded shape to a corner section of the sacrificial layer on a side which is not in contact with the substrate; forming a coating resin layer on the substrate and the sacrificial layer; patterning the coating resin layer; and dissolving the dissolvable resin forming the sacrificial layer.

Abstract: A checker array print head is able to output an image with possible white or black stripes made unnoticeable even when the conveyance direction of a print medium with respect to the ink jet print head is skewed. A first chip located on an upstream side in a conveyance direction (X direction) and a second chip located on a downstream side in the conveyance direction are arranged such that a dot printed via the first chip and a dot printed via the second chip are printed at intervals shorter than a print resolution in an ejection port arrangement direction (Y direction). Thus, even if the conveyance direction of the print medium is skewed by meandering thereof or the like, possible white stripes, which are particularly noticeable, can be inhibited.

Abstract: An ink supply reservoir, and method of supplying ink, is described.

Abstract: A production process for a structure includes preparing a substrate on which a first layer and a second layer are provided in this order; forming a second mold, which is a part of a mold member serving as a mold for forming the structure, from the second layer; etching the first layer using the second mold as a mask and thereby forming a first mold, which is another part of the mold member from the first layer; providing a coating layer which serves as the structure to cover the first mold and the second mold; and removing the first mold and the second mold and thereby forming the structure.

Abstract: A through-hole forming method includes steps of forming a first impurity region (102a) around a region where a through-hole is to be formed in the first surface of a silicon substrate (101), the first impurity region (102) being higher in impurity concentration than the silicon substrate (101), forming a second impurity region (102b) at a position adjacent to the first impurity region (102a) in the depth direction of the silicon substrate (101), the second impurity region (102b) being higher in impurity concentration than the first impurity region (102a), forming an etch stop layer (103) on the first surface, forming an etch mask layer (104) having an opening on the second surface of the silicon substrate (101) opposite to the first surface, and etching the silicon substrate (101) until at least the etch stop layer (103) is exposed via the opening.

Abstract: When a piezoelectric actuator, having a lower electrode, an intermediate electrode, and an upper electrode respectively on upper surfaces of a vibration plate, a lower piezoelectric layer, and an upper piezoelectric layer mutually stacked, is produced, a voltage of 30 V is applied to the upper and the intermediate electrodes, and ?30 V is applied to the lower electrode so that a second active portion, which is included in portions of the piezoelectric layers interposed between the upper and the lower electrodes and from which a portion opposed to the intermediate electrode is excluded, is polarized downwardly. After that, 0 V is applied to the upper and lower electrodes, and 30 V is applied to the intermediate electrode so that a first active portion, which is included in the upper piezoelectric layer and which is interposed between the upper and the intermediate electrodes, is polarized upwardly.

Abstract: A nozzle plate cutting off method for cutting off the nozzle plate from a primary processing plate including a frame body, a nozzle plate which has multiple nozzle holes for ejecting droplets and is separately arranged inside the frame body, and a connection portion arranged at a clearance between the frame body and the nozzle plate to connect the frame body to the nozzle plate. In the nozzle plate cutting off method, a punching tool is used to punch out the nozzle plate at a connection region of the connection portion with the nozzle plate, there by cutting off the nozzle plate from the primary processing plate.

Abstract: Provided is a method of manufacturing a liquid ejecting head, the method including forming a piezoelectric element having a width in a reference direction longer than a width in an orthogonal direction orthogonal to the reference direction on a first substrate, and adhering a second substrate to a surface of the first substrate opposed to the piezoelectric element at a temperature lower than a normal temperature, wherein, in the adhering of the second substrate, the second substrate is adhered such that the first direction of the second substrate is adjusted to the reference direction, using a first thermal expansion coefficient in a first direction on an adhesion surface with the first substrate, the first thermal expansion coefficient is less than a second thermal expansion coefficient in a second direction orthogonal to the first direction and the first thermal expansion coefficient is less than a thermal expansion coefficient of the first substrate.

Abstract: A method for making a plurality of electromechanical transducers includes, depositing a layer of conductive material attached to a first side of a piezoelectric layer to form a laminar structure, attaching the laminar structure to a rigid carrier substrate using a removable double-sided tape, forming piezoelectric transducers, attaching the electromechanical transducer to a fluid channel substructure, and removing the rigid carrier substrate and the double-sided tape.

Abstract: A Method for manufacturing a liquid discharge head having a flow path forming member for forming a liquid flow path which communicates with a discharge port discharging liquid, comprises; preparing a layer containing a compound having a structure represented by Formula (1) and a structure represented by Formula (2) as a main chain on a substrate, providing a solution in which a resin is dissolved in a compound represented by Formula (3) or (4) on the layer, forming a mold having the shape as the flow path from the resin, providing a layer which will become the flow path forming member so as to cover the mold, and removing the mold to form the flow path.

Abstract: Provided is a method of manufacturing a liquid discharge head including: forming a first pattern for forming the flow path on the substrate; forming a first coating layer which covers the first pattern; forming a hole in the first coating layer, through which the first pattern is exposed; forming a second pattern for forming the flow path on the first coating layer, such that the second pattern contacts with the first pattern through the hole; forming a second coating layer for covering the second pattern; forming the discharge port in the second coating layer; and removing the first pattern and the second pattern to form the flow path.

Abstract: Disclosed is a printhead having at least one ink drop generator region, which includes an ink chamber, an orifice through which ink drops are ejected, and a heating element positioned below the ink chamber. The heating element includes a resistor defined therein and a nano-structured surface that is exposed to the ink fluid supplied to the ink chamber. The nano-structured surface takes the form of an array of nano-pillars. The printhead is fabricated by a method that includes: forming a heating element having an oxidizable metal layer as the uppermost layer; forming an aluminum-containing layer on the oxidizable metal layer; anodizing the aluminum-containing layer to form porous alumina; anodizing the oxidizable metal layer so as to partially fill the pores in the porous alumina with metal oxide material; and removing the porous alumina by selective etching to produce a nano-structured surface.

Abstract: 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.

Abstract: According to one embodiment, an inkjet head includes a base including a mounting surface, an orifice plate, and a first driving element. The orifice plate includes a plurality of orifices. An ink chamber between the orifice plate and the base is configured to be supplied ink. The first driving element is arranged in the ink chamber and includes a plurality of first pressure chambers to which the orifices are opened and a plurality of first dummy chambers covered with the orifice plate, both ends of the first pressure chambers being opened to the ink chamber, both ends of the first dummy chambers being opened to the ink chamber, and the first dummy chambers being arranged alternately with the plurality of first pressure chambers.

Abstract: A method and structure for an ink jet printhead aperture plate assembly which can be part of an ink jet printhead and an ink jet printer. The present teachings can include the use of a protective coverlay interposed between a press plate of a press and an anti-wetting coating on a polyimide layer which forms part of the aperture plate assembly. The coverlay can include a base material which has an elastic modulus which is at least a specified value. An embodiment of the present teachings can form an aperture plate assembly and an ink jet printhead having reduced dimpling and deformation around a nozzle opening in the aperture plate assembly.

Abstract: A method of fabricating a mounting substrate for an inkjet printhead, the method includes providing a plurality of layers of unfired ceramic, wherein a first layer and a second layer of the plurality of layers are each patterned to have unfired ceramic in one region and no unfired ceramic in a second region; stacking the plurality of layers in a predetermined order; and firing the stack of layers to make a co-fired ceramic substrate including a first ink channel corresponding to the first layer and a second ink channel corresponding to the second layer.

Abstract: A method of forming a fluid ejector includes forming a recess well into a silicon wafer on a first side of the silicon wafer, and filling the recess well with a sacrificial material. A thin layer structure is deposited onto the first side of a silicon wafer covering the filled recess well. Then a thin film piezoelectric is bonded or deposited to the thin layer structure, and a hole is formed in the thin layer structure exposing at least a portion of the sacrificial material. The sacrificial material is removed from the recess well, wherein the hole in the thin layer in the recess well with the sacrificial material removed, form a fluid inlet. An opening area in the silicon wafer is formed on a second side of the silicon wafer. Then a nozzle plate is formed having a recess portion and an aperture within the recess portion. The nozzle plate is attached to the second side of the silicon wafer, with the recess portion positioned within the open area.

Abstract: A method includes attaching multiple layers to a back side of at least a portion of a fluid dispensing subassembly having at least one inlet port to form a fluid dispensing assembly, aligning a laser to a region of the fluid dispensing assembly, the region corresponding to the inlet port, and forming at least one hole in the region using a laser, the hole completing a path through the layers to the inlet port. A fluid dispensing assembly has a fluid dispensing subassembly having at least one inlet port, a fluid manifold having at least one outlet, at least two layers between the fluid dispensing subassembly and the manifold, and a fluid path in the at least two layers between the outlet and the inlet port, the fluid path having smooth walls and substantially uniform width.

Abstract: A method for manufacturing a liquid ejecting head that has a channel forming substrate and a reservoir forming substrate is provided. The method includes forming a vibration plate on the channel forming substrate, a piezoelectric element on the vibration plate removing portions of the vibration plate to form first and second opening portions, forming a lead electrode extending from the piezoelectric element including a first separate metal layer disposed over the first opening portion and a second separate layer disposed on the second opening portion, attaching a reservoir forming substrate to the channel forming substrate, forming a communicating portion in the channel forming substrate with a first positioning hole corresponding to the first opening portion and a second positioning hole corresponding to the second opening portion, and communicating the reservoir portion and the communicating portion by removing the separate metal layers.

Abstract: A method includes a) providing a detachable seal retainer including: a housing for a seal member; an attachment face having a plurality of attachment members; an outer face opposite the attachment face; a handle including a free end and a hinged end opposite the free end; and a hinge member disposed between the housing and the hinged end of the handle; b) providing a seal member within the housing; c) providing an ink tank including an outlet face having a corresponding plurality of attachment features proximate the at least one outlet port; d) aligning the seal retainer to the ink tank such that the alignment members of the seal retainer are aligned with the corresponding plurality of attachment features of the ink tank; e) pressing the seal retainer against the ink tank such that the seal member is contact with the at least one outlet port.

Abstract: A droplet ejection head that is attachable to and removable from a droplet ejection apparatus, includes: a nozzle plate having multiple nozzle holes to eject droplets; an individual-channel substrate in which multiple individual-liquid-chambers to supply liquid to the nozzle holes are formed; a common-channel substrate to supply liquid to the individual-channel substrate; a base plate made of metal and including a first positioning part to be engaged with a part of the droplet ejection apparatus at a given position to perform positioning with respect to the droplet ejection apparatus in a direction along an opening surface of the nozzle plate at which the nozzle holes are opened; and a housing made of resin and including a second positioning part to perform positioning with respect to the droplet ejection apparatus in a direction intersecting with the opening surface.

Abstract: A liquid discharge head includes a recording element substrate including an electrode pad, a support member including a recess that supports the recording element substrate on a bottom surface thereof, an electric wiring member, and a sealant. The electric wiring member includes an opening through which the recording element substrate is exposed, an electric lead wire extending from the opening and connected to the electrode pad, and a protrusion formed in the opening and extending between a side surface of the recording element substrate and an inner side surface of the recess facing the side surface. A distal end of the protrusion is in contact with the bottom surface of the recess. The sealant is disposed in a region surrounded by a surface of the protrusion, the bottom surface of the recess, the inner side surface of the recess, and the side surface of the recording element substrate.

Abstract: An ink jet printing head includes a head portion, an ink tank, a first rigid circuit board, a second rigid circuit board, a flexible printed circuit board, and a connector. The connector is disposed on a top surface of the ink tank, the first rigid circuit board is disposed on a side of the ink tank, the second rigid circuit board is disposed between the ink tank and the head portion, and the flexible printed circuit board is disposed in a bent condition between the first rigid circuit board and the second rigid circuit board.

Abstract: A liquid jet head (1) includes a nozzle plate (4) including nozzles (3) for ejecting liquid, side walls (6) placed above the nozzle plate (4), the side walls (6) forming grooves (5) having a fixed depth in a longitudinal direction thereof, drive electrodes (7) formed on wall surfaces of the side walls (6), for selectively deforming the side walls (6), a cover plate (10) placed on upper surfaces (US) of the side walls (6), the cover plate (10) including a supply port (8) for supplying liquid to the grooves (5) and a discharge port (9) for discharging liquid from the grooves (5), and sealing materials (11) for closing the grooves (5) outside communicating portions between the grooves (5) and the supply port (8) and between the grooves (5) and the discharge port (9). Accordingly, an outside shape of the liquid jet head is downsized and patterning of electrodes is facilitated.

Abstract: A fastening apparatus useable with a receiving member. The fastening apparatus includes a fastener body with a plurality of deflection members spaced apart from each other. The fastener body including an initial state corresponding to the plurality of deflection members spaced apart from each other by a first distance and a deflection state corresponding to the plurality of deflection members spaced apart from each other by a second distance less than the first distance. Each of the plurality of deflection members including a deflection threaded portion to engage with the receiving threaded portion of the receiving member in an engagement state. During insertion, the fastener body moves between the initial state and the deflection state such that the deflection threaded portions insert into the receiving threaded portion to form the engagement state.

Abstract: A piezoelectric element includes: a substrate; a lower electrode that is formed on and/or over the substrate; a piezoelectric substance layer that covers the lower electrode; and an upper electrode that is formed on and/or over the piezoelectric substance layer, wherein a side surface of the piezoelectric substance layer includes a first portion that extends from an upper surface of the piezoelectric substance layer and a second portion that extends from the first portion, the first portion is inclined at a first angle with respect to an upper surface of the substrate, the second portion is inclined at a second angle with respect to the upper surface of the substrate, the second angle is smaller than the first angle, and the upper electrode covers at least the first portion and the second portion.

Abstract: Disclosed is a fluid ejection device that includes a nozzle plate. The nozzle plate includes a plurality of nozzles. Further, the fluid ejection device includes a flow feature layer. The flow feature layer includes a plurality of flow features. The fluid ejection device further includes an ejection unit. The ejection unit includes a first layer. The first layer includes a plurality of fluid vias. Further, the ejection unit includes a second layer. The second layer includes a plurality of fluid channels. Further, the second layer is attached to the first layer through a first intermediate silicon oxide layer. The ejection unit also includes a third layer. The third layer includes a plurality of ports. The third layer is also attached to the second layer through a second intermediate silicon oxide layer. Further disclosed are an ejection unit for a fluid ejection device and a method for fabricating the fluid ejection device.

Abstract: A method for manufacturing a liquid ejecting head is provided. The liquid ejecting head has nozzle openings and ejects liquid supplied through a liquid supply passage from the nozzle openings.

Abstract: A fluid ejection device includes a flexible membrane and an adhesive layer on the flexible membrane. The adhesive layer includes a first region and a second region extending from the first region. The fluid ejection device includes a piezoelectric material layer including an edge region and a central region. A surface of the edge region of the piezoelectric material layer is substantially coplanar with a surface of the second region of the adhesive layer. The surface of the edge region and the surface of the second region are substantially parallel with the flexible membrane.

Abstract: The present invention provides a method for producing a liquid discharge head including a silicon substrate having, on a first surface, energy generating elements, and a supply port penetrating the substrate from the first surface to a second surface, which is a rear surface of the first surface of the substrate. The method includes the steps of: preparing the silicon substrate having a sacrifice layer at a portion on the first surface where the ink supply port is to be formed and an etching mask layer having a plurality of openings on the second surface, the volume of a portion of the sacrifice layer at a position corresponding to a portion between two adjacent said openings being smaller than the volume of a portion of the sacrifice layer at a position corresponding to the opening; etching the silicon substrate from the plurality of openings and etching the sacrifice layer.

Abstract: Without being dependent on design changes, a liquid ejection head and a method of production thereof are provided in which when time-division driving, liquid drop landing deviance in the direction of printing is capable of being corrected. In order to achieve this, before performing an exposure in order to form an ejection port, after forming a cavity that is shifted with respect to the location at which the ejection port is formed, exposure is performed.

Abstract: A printhead die that includes first and second slots through the die for feeding a same liquid, the slots offset from each other along two axes. The die has a first nozzle package adjacent one side of the first slot and extending toward the second slot along the minor axis. The die includes a second nozzle package adjacent an opposite side of the second slot and extending toward the first slot along the minor axis. The first and second nozzle packages each have a slanted corner profile.

Abstract: A method of manufacturing a liquid ejection head, which includes: preparing a liquid ejection head which includes: a recording element board provided with an ejection port through which liquid is ejected and an energy generator; an electrical wiring member provided with an opening from which the recording element board is exposed; and plural electrical connecting portions for electrically connecting the recording element board and the electrical wiring member relatively moving a discharge member, which is for dropping a sealing agent, toward one end of an arrangement of the electrical connecting portions while dropping the sealing agent onto the electrical wiring member and inside the opening; and relatively moving the discharge member from the one end of the electrical connecting portions to the other end while dropping the sealing agent to seal the electrical connecting portion.

Abstract: A metallic fuel system component includes an internal surface and an external surface. The metallic fuel system component is made by inducing compressive residual stress in only a portion of the internal surface of the metallic fuel system component by transmitting a laser shock wave through the metallic fuel system component from the external surface to the internal surface.

Abstract: A process for producing an ink jet recording head which includes a substrate having a first and a second surface opposing to each other, a common liquid chamber formed by machining the substrate from the second surface so as to reduce the thickness of a part of the substrate and a plurality of independent ink supply ports that communicate with the common liquid chamber and are through-holes extending through the substrate, and a nozzle structure that is formed on the first surface and has an ink flow path communicating with the independent ink supply ports and an ink ejection orifice communicating with the ink flow path. The process includes patterning a resist applied to the substrate using a photomask for forming the independent ink supply ports, wherein infrared alignment is conducted at a depression of the substrate upon alignment between the photomask and the substrate using an alignment mark.

Abstract: An injector for a vacuum vapour deposition system, includes an injection duct suitable for receiving vaporized materials from a vacuum evaporation source and a diffuser having a plurality of nozzles for diffusing the vaporized materials into a vacuum deposition chamber, each nozzle including a channel suitable for connecting the injection duct to the deposition chamber. The diffuser has a spatially varying nozzle distribution. A process for calibrating an injector and a process for manufacturing a diffuser for an injector are also described.

Abstract: A thermal inkjet printhead may include a substrate and a resistive layer. A thermal resistor may be formed in the resistive layer. A first metal layer may be between the substrate and a resistive layer having a thickness to form a power bus. A dielectric layer may be between the first metal layer and the resistive layer.

Abstract: A method for manufacturing a liquid discharge head includes heating the surface portion of power line that is to be in contact with a member made of resin, thereby forming, from a precious metal layer and a nickel layer, an adhesion layer made of an alloy containing precious metal and nickel as major components.

Abstract: The invention pertains to a process for preparing a printing form from a curable composition that includes an bisphenol-based epoxy resin; an amine curing agent selected from primary amines and secondary amines, the agent having an amine equivalent weight of less than or equal to 200 g/equivalent; and, a multi-epoxy reactive diluent. The process includes applying the curable composition to a supporting substrate to form a layer, curing the layer at one or more temperatures in a temperature range, and engraving to form at least one cell in the cured layer. The process prepares printing forms, particularly gravure printing forms, having a cured resin composition layer that is engravable, resistant to solvent inks and to mechanical wear, and capable of printing gravure-quality images.

Abstract: An inkjet recording head, wherein a support member being formed by at least two layers is provided between an ink supply member and a recording element substrate having a substrate, which includes discharge ports to discharge ink and an energy generating element to generate energy to discharge the ink from the discharge ports.

Abstract: A method of manufacturing a printhead includes providing a polymeric substrate having a surface; providing a patterned material layer on the surface of the polymeric substrate; and removing at least some of the polymeric substrate not covered by the patterned material layer using an etching process.