Abstract: A method of forming a fluid ejector includes positioning a fluid ejection module such that it is adjacent to a mounting frame, applying heat to a thermohardening glue that is between the fluid ejection module and the mounting frame, and curing the glue to secure the fluid ejection module to the mounting frame. The heat is applied with a heating element at least partially embedded in the glue.

Abstract: Provided are a coating device and an inkjet recording device capable of reliably removing liquid attached to a drum. A process liquid is coated by pressing a coating roller against a surface of paper to be transported by a process liquid coating drum. The process liquid attached to an outer peripheral surface of the process liquid coating drum is removed by a blade coming into contact with the outer peripheral surface of the process liquid coating drum. The blade is separated from the process liquid coating drum by an installation portion of a gripper. The process liquid remaining in the process liquid coating drum during separation is removed by air that is ejected from air nozzles.

Abstract: A liquid ejecting head includes a channel unit having a plurality of pressure chambers respectively communicating with a plurality of nozzles opened to a nozzle formation surface, a plurality of reservoirs for supplying liquid to the plurality of the pressure chambers, and a plurality of compliance units formed by partitioning at least a part of the surface of each reservoir opposite to the nozzle formation surface by a film member; and a head case joined to a surface of the channel unit. A concave chamber formed by depressing a part of a surface joined to the channel unit in a side opposite to the reservoir and an atmosphere opening passage whose one end communicates with the concave chamber and the other end is opened to the atmosphere are formed at the head case. The concave chamber is formed in series over the compliance units.

Abstract: A liquid dispenser includes a liquid supply channel, a liquid dispensing channel that includes an outlet opening, and a liquid return channel that includes a porous member located therein. A liquid supply provides liquid under pressure from the liquid supply channel through the liquid dispensing channel to the liquid return channel. A diverter member is selectively actuatable to divert a portion of the liquid toward outlet opening of the liquid dispensing channel.

Abstract: To provide an inkjet recording ink, which contains water, a water-soluble organic solvent, a colorant, and a surfactant, wherein the colorant contains a surfactant-dispersible pigment (A) dispersed by the surfactant, and a resin-coated pigment (B), and wherein the surfactant is a surfactant selected from the group consisting of anionic surfactants represented by the following formula (1), and having HLB value of 12 or higher: R1—O—(CH2CH2O)m-A??(1) where R1 is a C2-C24 alkyl group, alkenyl group, alkylphenyl group, or alkylallyl group; A is —COOM1, —SO3M2, or —PO(OM3)OM4, where M1, M2 and M4 are each independently alkali metal, quaternary ammonium, quaternary phosphonium, or alkanolamine, and M3 is a hydrogen atom or R2(CH2CH2O)n with proviso that R2 is a C1-C4 alkyl group, alkenyl group, alkylphenyl group, or alkylallyl group, and n is an integer of 4 to 20; and m is and integer of 15 to 40.

Abstract: 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.

Abstract: A method of actuating a thermal bend actuator having an active beam fused to a passive beam. The method comprises passing an electrical current through the active beam so as to cause thermoelastic expansion of the active beam relative to the passive beam and bending of the actuator. The current is delivered in an actuation pulse having a pulse width of less than 0.2 microseconds.

Abstract: A liquid ejecting method includes ejecting a liquid through a liquid ejecting head. Viscosity of the liquid falls within a range from 6 mPa·s to 15 mPa·s. The liquid ejecting head includes a nozzle that ejects the liquid, a pressure compartment that causes a change in the pressure of the liquid to eject the liquid through the nozzle, and a supply unit that communicates with the pressure compartment and supplies the liquid to the pressure compartment. A channel flow resistance of the supply unit ranges from equal to or higher than a channel flow resistance of the pressure compartment to equal to or lower than twice the channel flow resistance of the pressure compartment. A channel length of the pressure compartment ranges from equal to or longer than a channel length of the supply unit to equal to or shorter than twice the channel length of the supply unit.

Abstract: A liquid-ejecting head includes a channel which is in communication with a nozzle opening and which includes a pressure-generating chamber, a circulation channel that serves to circulate a liquid in the channel, and a pressure generator that serves to generate pressure change. The circulation channel has a narrow portion including a first wall and a second wall, the first wall tilting with respect to a forward direction of a liquid flows and serving to gradually decrease the cross-sectional area, the second wall tilting with respect to the flow direction and serving to gradually increase the cross-sectional area. The tilt angle of the first wall with respect to the inner surface of the circulation channel is larger than the tilt angle of the second wall with respect to the inner surface of the circulation channel at the downstream side.

Abstract: Disclosed is an ink-jet head that can suppress occurrence of the crosstalk and facilitate a smooth ink circulation in pressure chambers. The ink jet head includes two or more pressure chambers 110 configured to be supplied with ink and each having a nozzle; ink supply channel 101 communicating with each of pressure chambers 110 and configured to allow the ink to flow to each of pressure chambers 110; ink discharge channel 102 communicating with each of pressure chambers 110 and configured to allow the ink discharged from each of pressure chambers 110 to flow; ink inlet channel 107 connecting each of pressure chambers 110 to ink supply channel 102; ink outlet channel 108 connecting each of pressure chambers 110 to ink discharge channel 102. An inner surface of ink outlet channel 108 includes unevenness 109.

Abstract: A liquid ejecting apparatus includes a liquid ejecting head having a nozzle row in which nozzles are arrayed and eject liquid. A wiping member moves relative to a nozzle-forming surface of the liquid ejecting head and wipes the nozzle-forming surface along a direction that intersects a nozzle row direction. Caulking portions are exposed to the nozzle-forming surface. Insertion portions are exposed to the nozzle-forming surface and allow positioning members to be inserted therethrough. The nozzle-forming surface includes a first region ranging from a wiping start position for the wiping member to a nozzle row forming region in which the nozzle row is formed and a second, opposite, region. A first caulking portion is formed in the first region outside the nozzle row along the nozzle row direction, and a second caulking portion is formed in the second region inside the insertion portions along the nozzle row direction.

Abstract: A liquid dispenser includes a liquid supply channel, a liquid dispensing channel including an outlet opening including an end, and a liquid return channel. A liquid supply provides liquid under pressure from the liquid supply channel through the liquid dispensing channel to the liquid return channel. A diverter member is selectively actuatable to divert a portion of the liquid toward outlet opening of the liquid dispensing channel. A structure extends from the end of the outlet opening and is shaped to direct the portion of the liquid diverted from the liquid dispensing channel through a steep angle relative to the direction of travel of the liquid provided by the liquid supply channel.

Abstract: A liquid discharge head includes first and second element substrates including: a discharge port array; energy generating elements; and electric contacts electrically connected to the energy generating elements and including first and second electric contacts disposed linearly along one end and the other end. The first and second element substrates are configured such that a distance between the gravity center of the first electric contact and that of a discharge port provided at an end of the discharge port array on the first electric contacts side is different from a distance between the gravity center of the second electric contact and that of a discharge port provided at an end of the discharge port array on the second electric contacts side. The first electric contacts of the first element substrate and the second electric contacts of the second element substrates are disposed linearly, and vice versa.

Abstract: A liquid ejection head includes a substrate, having a front surface and a back surface, provided on the front surface with an energy generating element for generating energy used for ejecting liquid; a supply port, provided so as to penetrate between the front surface and the back surface of the substrate, for supplying the liquid to the energy generating element; a first film provided on the front surface of the substrate; and a second film provided so as to coat a wall of the substrate defining the supply port. The first film and the second film surface-contact each other with respect to two directions substantially perpendicular to each other.

Abstract: A liquid dispenser includes a liquid supply channel, a liquid dispensing channel including an outlet opening, and a liquid return channel. A liquid supply provides liquid under pressure from the liquid supply channel through the liquid dispensing channel to the liquid return channel. A selectively actuatable diverter member imparts heat energy directly to a first portion of the liquid to divert a second portion of the liquid toward outlet opening of the liquid dispensing channel.

Abstract: An inkjet recording apparatus may include a flow path unit including a discharge port, an actuator configured to supply discharge energy and non-discharge energy to the ink, a drive controller configured to cause the actuator to supply the discharge energy, and a cap moving unit configured to move a cap between the open position and the covering position. After the supply of the image data is started, the drive controller may cause the actuator to supply the non-discharge energy in both a first period and a second period. The first period begins at starting of the supply of the non-discharge energy. The second period begins at the end of the first period and ends when the supply of the discharge energy is started. A frequency of the supply of the non-discharge energy during the first period is greater than that of the non-discharge energy during the second period.

Abstract: A fluid dispensing subassembly has a diaphragm arranged to be operated on by a transducer, a body pressure chamber arranged to be operated on by the diaphragm, and an adhesive attachment layer arranged between the diaphragm and the body pressure chamber. A fluid dispensing subassembly has a body pressure chamber formed of either a single plate or set of plates, a diaphragm arranged to operate on the body pressure chamber, and an adhesive layer arranged between the body pressure chamber and the diaphragm. A method of manufacturing a fluid dispensing subassembly includes forming a body pressure chamber from a body plate or a set of plates including a body plate, and adhesively bonding a diaphragm plate to at least the body plate of the fluid dispensing subassembly.

Abstract: The dimensions/shape of ink flow channels in a recording head are designed so that when the inertance of nozzles is represented by Mn, the inertance of the ink supply channels is represented by Ms, the combined resistance obtained by combining the flow channel resistance in the nozzles, the flow channel resistance in pressure chambers, and the flow channel resistance in the supply channels is represented by R, and a unique vibration cycle of the pressure fluctuation arising in the ink within the pressure chambers is represented by Tc, the following Equation (A) holds true.

Abstract: Provided is a continuous-type charge deflection liquid ejection head that is suitable for higher-density and multiple nozzles. This liquid ejection head includes: an orifice plate having a plurality of nozzles arranged in a two-dimensional manner; a charging electrode plate having a charging electrode to charge ink droplets from each of the plurality of nozzles; and first and second deflection electrode plates each having a deflection electrode to deflect each of the ink droplets charged by the charging electrode, in which each of the charging member, the first deflection member, and the second deflection member has through-holes that ink droplets pass through, and the charging member, the first deflection member, and the second deflection member are laminated in this order in an ejecting direction of the ink droplets.

Abstract: According to one embodiment, when an electrode protection film of an inorganic material, which is apt to form a pin hole by influence of roughness of a ground, is used, an electrode as a smoothed electrode is formed on the ground of the electrode protection film by a plating method, or a film is formed as a smoothed layer (film) by an inorganic coating material such as SIRAGUSITAL (trade name: New Technology Creating Institute Co., Ltd.), such that the thickness of the electrode protection film is 1.0 ?m or more, and the average surface roughness of the ground of the electrode protection film is 0.6 ?m or less.

Abstract: An image formation device that inspects for image irregularities caused by joining of inkjet head modules. The image formation device is equipped with a belt conveyance unit, a recording head, a print sensor and a system controller. The belt conveyance unit moves paper in a conveyance direction. At the recording head, modules including plural recording elements that eject ink droplets are joined up to a length corresponding to the width of the paper. The recording head ejects ink droplets at the paper being conveyed to form an image. The print sensor reads the image recorded on the paper, while moving in the width direction of the paper. On the basis of the image that is read, the system controller inspects the quality of the image recorded on the paper.

Abstract: A piezoelectric actuator includes a first piezoelectric layer, a second piezoelectric layer stacked on the first piezoelectric layer, a first electrode arranged on the first piezoelectric layer, a second electrode arranged between the first and second piezoelectric layers, and a third electrode arranged on the second piezoelectric layer. A portion of the third electrode faces the second electrode, and another portion of the third electrode faces the first electrode. The first electrode does not face at least a portion of the second electrode. A portion, of the second piezoelectric layer, sandwiched between the second electrode and the third electrode is polarized in a first direction in a thickness direction thereof, and portions, of the first and the second piezoelectric layers, which are sandwiched between the first electrode and the third electrode and between which the second electrode is not arranged, are polarized in a direction opposite to the first direction.

Abstract: A droplet discharge head includes: a liquid reservoir which holds a liquid; a channel through which the liquid is guided to the liquid reservoir; and a driving element which changes the pressure in the liquid reservoir so as to discharge droplets of the liquid contained in the liquid reservoir through a nozzle, in which wall surfaces of the liquid reservoir and of the nozzle are arranged in a continuous line at a side opposite the channel with respect to the center of the nozzle as seen in a cross-sectional view through a central axis of the nozzle.

Abstract: A flexible wiring substrate that is used in a liquid ejection head having an element substrate provided with energy generating elements for generating energy for ejecting liquid includes: a bending portion; a base member including resin; electrical wiring lines formed on the base member and electrically connected to the element substrate, the electrical wiring lines extending over a ridge of the bending portion; and a metal layer that is arranged on an area of the base member in which no electrical wiring lines are provided and that is not electrically connected to the element substrate, the metal layer extending over the ridge.

Abstract: A printing apparatus is provided with a line-type ink jet head having a plurality of blocks on each of which a set of ink ejection elements are arranged. A drive signal generating unit is configured to generate a drive voltage signal including a prepulse to be applied to the set of the ink ejection elements for each block, based on data indicating a number of times of ejecting ink to each pixel; and a first storage unit is configured to store a drive signal adjustment value to adjust a set of a voltage value of the drive voltage signal and a width of the prepulse for each block. The drive signal generating unit generates the drive voltage signal for each block, based on the drive signal adjustment value for each block read out from the first storage unit.

Abstract: A liquid ejecting head including a plurality of nozzle orifices for liquid ejection, a reservoir plate made of rolled metal rolled in a first direction which includes a liquid reservoir which extends in a longitudinal direction that is capable of communicating with the plurality of nozzle orifices, and a compliance plate laminated on the reservoir plate which is made of rolled metal rolled in a second direction, the compliance plate including a compliance portion that forms a surface of the liquid reservoir which is also capable of absorbing the pressure in the liquid reservoir. The second direction is parallel to the longitudinal direction of the liquid reservoir and the first direction is perpendicular to the second direction.

Abstract: In a liquid-ejecting method for ejecting liquid contained in a liquid chamber from a nozzle as a liquid droplet group, the ejection amount of each liquid droplet of the continuously ejected liquid-droplet group can be stabilized corresponding to a wide frequency band of a pulse signal. Also, when one pixel is formed with a plurality of liquid droplets using a head capable of deflecting the ejecting direction of the liquid droplet, the image quality is improved by reducing the landing positional displacement between plural liquid droplets for forming the one pixel.

Abstract: An aqueous inkjet printing fluid composition for use in an inkjet printer comprising a silicon-based material which contacts the aqueous printing fluid composition, comprising in a concentration sufficient to inhibit corrosion of the silicon-based material when contacted by the aqueous printing fluid composition a soluble metal ligand complex comprising a divalent or a trivalent metal M and one or more organic ligands of Formula (I): wherein X may be chosen from the group consisting of H and carboalkoxy, alkyl, alkoxy, aryl, hetaryl, carboxy, sulfo and phospho substituents; and Y may be chosen from the group consisting of H and carboalkoxy, alkyl, alkoxy, aryl, hetaryl, carboxy, amino, hydroxyl, sulfo and phospho substituents. The useful lifetime of microelectromechanical fluidic devices based on silicon fabrication is extended.

Abstract: An aqueous inkjet printing fluid composition for use in an inkjet printer comprising a silicon-based material which contacts the aqueous printing fluid composition, comprising in a concentration sufficient to inhibit corrosion of the silicon-based material when contacted by the aqueous printing fluid composition a soluble metal ligand complex of Formula (I): wherein M represents a divalent or a trivalent metal; each of X and R may independently be chosen from the group consisting of halogen, cyano, carboalkoxy, alkyl, alkoxy, aryl, hetaryl, carboxy, hydroxy, sulfo and phospho substituents; n and m independently represent an integer from 0-3; and the number of ligands y is 2 or 3; with the proviso that n+m is an integer from 1 to 6, and at least one of X and R comprises a solubilizing group capable of imparting water solubility to the complex. The useful lifetime of microelectromechanical fluidic devices based on silicon fabrication is extended.

Abstract: An aqueous inkjet printing fluid composition for use in an inkjet printer comprising a silicon-based material which contacts the aqueous printing fluid composition, comprising in a concentration sufficient to inhibit corrosion of the silicon-based material when contacted by the aqueous printing fluid composition a soluble metal ligand complex of Formula (I): wherein M represents a divalent or a trivalent metal; Z represents OH or CO2H; n represents an integer from 1-4; each Y may independently be chosen from the group consisting of halogen, cyano, carboalkoxy, alkyl, alkoxy, aryl, hetaryl, carboxy, hydroxy, sulfo and phospho, or any two of Y on adjacent carbons may be combined together to form a 5-7 atom carbo- or heterocyclic ring; and the number of ligands y is 2 or 3; with the proviso that at least one Y comprises a solubilizing group capable of imparting water solubility to the complex. The useful lifetime of microelectromechanical fluidic devices based on silicon fabrication is extended.

Abstract: A liquid dispenser includes an array of liquid dispensing elements positioned on a substrate. Each liquid dispensing element includes a liquid dispensing channel positioned on the substrate. The liquid dispensing channel includes an outlet opening positioned on a wall opposite the substrate. A diverter member is associated with the liquid dispensing channel. A liquid return channel is positioned on the substrate in fluid communication with the liquid dispensing channel. A liquid supply channel is positioned on the substrate in fluid communication with the liquid dispensing channel. A liquid supply passage extends through the substrate in fluid communication with the liquid supply channel. A liquid return passage extends through the substrate in fluid communication with the liquid return channel. A liquid supply provides liquid that flows from each liquid supply channel through each liquid dispensing element to each liquid return channel.

Abstract: A liquid dispenser includes a liquid supply channel, a liquid dispensing channel, and a liquid return channel. The liquid dispensing channel includes a wall. The wall includes a surface. A portion of the wall defines an outlet opening that 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 is provided that flows from the liquid supply channel through the liquid dispensing channel to the liquid return channel. A liquid drop is caused to be ejected from the outlet opening of the liquid dispensing channel by selectively actuating a diverter member to divert a portion of the flowing liquid through the outlet opening of the liquid dispensing channel.

Abstract: A liquid dispenser is provided that includes a liquid supply channel, a liquid dispensing channel, and a liquid return channel. The liquid dispensing channel includes a wall. The wall includes a surface. A portion of the wall defines an outlet opening that 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 is provided that flows from the liquid supply channel through the liquid dispensing channel to the liquid return channel. A liquid drop is caused to be ejected from the outlet opening of the liquid dispensing channel by selectively actuating a diverter member to divert a portion of the flowing liquid through the outlet opening of the liquid dispensing channel.

Abstract: A liquid dispenser includes an array of liquid dispensing elements positioned on a substrate is provided. Each liquid dispensing element includes a liquid dispensing channel positioned on the substrate. The liquid dispensing channel includes an outlet opening positioned on a wall opposite the substrate. A diverter member is associated with the liquid dispensing channel. A liquid return channel is positioned on the substrate in fluid communication with the liquid dispensing channel. A liquid supply channel is positioned on the substrate in fluid communication with the liquid dispensing channel. A liquid supply passage extends through the substrate and is in fluid communication with the liquid supply channel. A liquid return passage extends through the substrate and is in fluid communication with the liquid return channel. A liquid manifold is provided that includes a liquid supply duct and a liquid return duct.

Abstract: A liquid dispenser is provided that includes a liquid supply channel, a liquid dispensing channel, and a liquid return channel. The liquid dispensing channel includes a wall. The wall includes a surface. A portion of the wall defines an outlet opening. Another portion of the wall defines a drain located in the wall downstream from the outlet opening. The drain includes a radius of curvature as viewed from a direction perpendicular to the wall. A liquid is provided that flows from the liquid supply channel through the liquid dispensing channel to the liquid return channel. A liquid drop is caused to be ejected from the outlet opening of the liquid dispensing channel by selectively actuating a diverter member to divert a portion of the flowing liquid through the outlet opening of the liquid dispensing channel.

Abstract: A liquid dispenser is provided that includes a liquid supply channel, a liquid dispensing channel, and a liquid return channel. The liquid dispensing channel includes a first wall. The first wall includes a surface. A portion of the first wall defines an outlet opening. The liquid dispensing channel includes a second wall opposite the first wall. The second wall of the liquid dispensing channel extends along a portion of the liquid supply channel and along a portion of the liquid return channel. A liquid supply passage extends through the second wall and is in fluid communication with the liquid supply channel. A liquid return passage is positioned through the second wall and is in fluid communication with the liquid return channel. The liquid return passage overlaps the outlet opening of the liquid dispensing channel as viewed from a direction perpendicular to the surface of the first wall of the liquid dispensing channel.

Abstract: There is provided a printing head which improves durability and increases reliability by reducing stress occurring in a bonding part between an electrode pad and an inner lead at cooling. The electrode pad and the inner lead are electrically connected in such a manner that in the bonding portions between the electrode pad and a stud bump, only a part of contacting portions between the electrode and the stud bump is bonded.

Abstract: A fluid ejection nozzle arrangement is provided having drive circuitry deposited on a substrate, subsequent etchant layers deposited on the drive circuitry to define a nozzle chamber with walls and a roof structure defining a fluid ejection port, and a stacked capacitive actuator arranged in the chamber. The actuator has alternate electrode plates sandwiched between a compressible polymer. Activation of the stacked actuator draws the electrode plates together to compress the polymer storing energy therein, with subsequent de-activation releasing the energy to eject fluid within the chamber from the ejection port.

Abstract: A first activation signal has ejection activation pulses that eject ink from nozzles; a second activation signal has a micro-oscillating activation pulse (non-ejection activation pulse) for inducing pressure fluctuation on ink within the pressure chamber of a level such that liquid is not ejected from the nozzle; a minimum electric potential of the micro-oscillating activation pulse is no greater than a maximum electric potential of the ejection activation pulse; and the ejection activation pulse is supplied to a piezoelectric element corresponding to an ejecting nozzle ejecting ink in a unit cycle, and the micro-oscillating activation pulse is at least supplied to a piezoelectric element corresponding to a non-ejecting nozzle located adjacent to the ejecting nozzle.

Abstract: A hardwearing inkjet printhead comprises a substrate 10 having an ink ejection circuit 12 and a patterned glass frit planarization layer 22 on its surface. A ceramic body 28 has a substantially flat surface 28B intimately bonded to the planarization layer. The ceramic body and planarization layer together define at least one ink ejection chamber 18 and associated ink ejection nozzle 38 with the nozzle and at least the major part of the height of the chamber formed in the ceramic body.

Abstract: An inkjet printhead includes: a substrate having a drive circuitry layer; a plurality of nozzle assemblies disposed on an upper surface of the substrate and arranged in one or more nozzle rows extending longitudinally along the printhead; a nozzle plate extending across the printhead; and a conductive track disposed on the nozzle plate which extends longitudinally along the printhead and parallel with the nozzle rows. The conductive track is connected to a common reference plane in the drive circuitry layer via a plurality of conductor posts extending between the drive circuitry layer and the conductive track.

Abstract: Provided is a liquid ejecting method, including: ejecting a liquid from a liquid ejecting head, wherein the viscosity of the liquid is in a range from 6 mPa·s to 20 mPa·s, wherein the liquid ejecting head includes: nozzles which eject the liquid; a pressure chamber which applies a pressure variation to the liquid in order to eject the liquid from the nozzles; and a supply unit which communicates with the pressure chamber and supplies the liquid to the pressure chamber, and wherein the opening area of the nozzles on the side in which the liquid is ejected is 1/10 or less of the opening area of the opening of the supply unit on the pressure chamber side.

Abstract: A liquid supply device includes a liquid supply channel that supplies a liquid from an upstream side as a liquid supply source side to a downstream side, on which the liquid is consumed, a first valve that is provided in the liquid supply channel to open and close the liquid supply channel, and a second valve that is provided on a downstream side from the first valve in the liquid supply channel to open and close the liquid supply channel. The first valve is closed when the second valve is open.

Abstract: A nozzle arrangement for a printhead is provided which has a chamber defined on a substrate configured to hold fluid, an ejection port defined in the chamber, and an actuator for moving the ejection port relative to the substrate to eject the held fluid therethrough.

Abstract: Provided is a liquid ejection head including a substrate including a liquid supply port and an energy generating element, in which the liquid supply port has at least one groove shape formed in a wall surface thereof, the at least one groove shape extending from a rear surface, which is a surface opposite to a front surface on which the energy generating element is formed, toward the front surface.

Abstract: An inkjet head includes: an ink tank plate that includes a nozzle to discharge a liquid; a drive circuit member connected to an electromechanical transducer to apply a voltage to the electromechanical transducer to generate a pressure in an ink tank to discharge a liquid from the nozzle; a liquid supply plate stacked approximately in parallel with the drive circuit member on the ink tank plate; and a sealing material that hermetically seals an electrical connection between the drive circuit member and the wiring member. The liquid supply plate is provided with a receptacle having a hole portion or a concave portion and a mount area surrounded by the receptacle. The drive circuit member is received in the mount area. The sealing material is filled inside the mount area after the liquid supply plate is bonded to the ink tank plate.

Abstract: An approach is provided for managing the processing of print data at a printing device based upon available consumable resources. A printing device includes a print process configured to determine consumable resources that are currently available at the printing device. The print process is further configured to determine which print data is to be processed based upon the consumable resources currently available at the printing device and the consumable resources required to completely process each of the print data. Print data that can be completely processed using the currently available consumable resources are selected for processing. The print process may also be configured to cause a notification to be provided to a client device to indicate the consumable resources currently available at a printing device and/or that insufficient consumable resources were available to process particular print data and to recommend other consumable resources to process the particular print data.

Abstract: To allow formation of an insulation film to be applied even to a glass substrate without depending on a substrate material so as to improve pressure generated by an electrostatic actuator, as well as to achieve improvement in driving stability and driving durability of the electrostatic actuator at a low cost. An electrostatic actuator including an individual electrode formed on a substrate, a vibration plate arranged opposite to the individual electrode via a predetermined gap and a driving means for causing a displacement of the vibration plate by generating an electrostatic force between the individual electrode and the vibration plate includes an insulation film provided on one or both of opposing surfaces of the fixed electrode and the movable electrode and a surface protection film provided on the insulation film. The surface protection film is made of a hard ceramic film or a hard carbon film.

Abstract: A liquid ejecting head that includes a fluid channel formation substrate and pressure generation units. The fluid channel formation substrate is made of a silicon single crystal substrate having a crystal face orientation of. The fluid channel formation substrate has a plurality of separate flow channels that include at least pressure generation chambers demarcated by partition walls, each of the pressure generation chambers being in communication with a nozzle opening that ejects liquid drops. The fluid channel formation substrate further has a communication portion that is in communication with each of the separate flow channels. The pressure generation units are provided so as to correspond to the pressure generation chambers and generate a pressure change in the pressure generation chambers so as to cause ejection of liquid drops.

Abstract: A method and an inkjet printing apparatus for ejecting ink in a deflected manner are provided. The inkjet printing apparatus includes an inkjet printhead having a passage plate, an electrostatic-force-application unit, and a heating unit. The passage plate includes ink chambers that hold ink and nozzles that eject the ink from the ink chambers as ink droplets. The electrostatic-force-application unit applies an electrostatic force. The heating unit heats up a portion of the ink inside the nozzles. The heating unit can include heaters disposed around each nozzles or a laser diode disposed outside the inkjet printhead. The electrostatic force forms a meniscus at the surface of the ink inside the nozzle. When a portion of the ink inside the nozzle is heated by the heating unit, the shape of the meniscus is changed and the direction in which the ink droplets are ejected through the nozzles is deflected.