Abstract: A flexible printed circuit board, included in a liquid discharge head, includes a film having a length in the longitudinal direction, a plurality of connection terminals arranged in a first area of the film adjacent to one side of the film in the longitudinal direction, a contact portion disposed in a second area of the film adjacent to the other side thereof in the longitudinal direction, the contact portion including a plurality of contact pads, and a plurality of wiring lines arranged in the film. The length of the second area of the film in a direction orthogonal to the longitudinal direction is more than two times the length of the first area thereof in that direction. The planar shape of the film is L-shaped.

Abstract: A print engine for an inkjet printer includes an inkjet cartridge having a cartridge body, a pagewidth printhead, a capper unit extending a length of the pagewidth printhead and housing a capping element which is movable between a capped position in engagement with the pagewidth printhead and a retracted position spaced from the pagewidth printhead, and an ink supply. The cartridge body supports the pagewidth printhead, the capper unit and the ink supply for simultaneous removal and replacement as a unitary component. The print engine further includes a cradle having a body for receiving the removable inkjet cartridge and to control the operation of the printhead for printing, the cradle having a capper drive for engaging the capper unit and drawing the capping element to the uncapped position; and a print controller board received in the cradle, the print controller board including one or more electrical terminals for engaging with corresponding electrical terminals on the inkjet cartridge.

Abstract: There is disclosed a printed wiring board comprising: an electrically insulating flexible layer which has on one of its opposite sides a protrusion which forms a corresponding recess on the other side of the flexible layer; an electrically conducting layer formed on the protrusion; and a wire formed on the flexible layer, connected to the conducting layer, and extending in a direction. The conducting layer has a shape long in the direction of extension of the wire.

Abstract: A pagewidth printhead assembly for an inkjet printer, that has a body portion for receiving ink from an ink source, an elongate ink distribution member mounted to the body portion, the body portion and the elongate ink distribution member being in fluid communication at a series of spaced locations along the length of the elongate ink distribution member, one or more integrated circuits fixed to the ink distribution member, the or each integrated circuit having nozzles for ejecting ink supplied by the distribution member onto a passing media substrate, and an electrical connector for transmitting data to the or each integrated circuit, the electrical connector having an elongate array of contacts for electrical connection with a corresponding array of contacts on the inkjet printer.

Abstract: A printhead assembly comprises an elongate support structure; a series of side wall sections extending a length of the support structure and defining ink supply channels, edges of the walls delineating a gap; a plurality of carriers positioned end-to-end in the gap and supported by said edges of the walls, the carriers defining a recess and ink supply passages in fluid communication with the recess and the ink supply channels; and a printhead integrated circuit mounted in each recess to receive ink from the ink supply channels. The elongate support structure is configured to permit a printed circuit board (PCB) to be fastened to an outside of the support structure so that the PCB can be connected to the printhead integrated circuits.

Abstract: A liquid ejecting head includes: a fluid channel formation substrate in which a fluid channel is formed so as to be communicate with a nozzle opening for ejecting liquid; a pressure generating element which applies pressure on the liquid to be ejected; a first substrate of which one end is electrically connected to the pressure generating element; a second substrate which is connected to the other end of the first substrate; and a substrate support section which supports the first substrate. Here, the substrate support section includes a connection support surface on a side thereof facing the second substrate. In addition, a connection portion between the first substrate and the second substrate is disposed in a position facing the connection support surface.

Abstract: A liquid ejecting head includes: a fluid channel formation substrate in which a fluid channel is formed so as to be communicated to a nozzle opening for ejecting liquid; a pressure generating element which applies pressure on the liquid to be ejected; a first substrate of which one end is electrically connected to the pressure generating element; a second substrate which is connected to the other end of the first substrate; and a support unit which supports the first substrate. Here, the support unit includes an erecting section which is provided on the one end of the first substrate, and a substrate support section which is provided on a side of the erecting section facing the second substrate and is formed of a separate member from the erecting section. The substrate support section includes a connection support surface on a side thereof facing the second substrate.

Abstract: A droplet ejection head includes: a first laminate having plural nozzles; a second laminate bonded to the first laminate and internally having plural pressure generating chambers communicating with the plurality of nozzles; plural piezoelectric devices having individual electrodes and common electrodes, the plural piezoelectric devices being provided in the second laminate correspondingly to the plural pressure generating chambers, the plural piezoelectric devices changing volumes of the plural pressure generating chambers in accordance with driving signal supplied to the individual electrodes so that fluid reserved in the pressure generating chambers is ejected as droplet from the nozzles; a first wiring board connected to the individual electrodes and supplying the driving signal to the individual electrodes; and a second wiring board connected to the common electrodes in common.

Abstract: A plurality of land sections, each enclosed by two slits, are formed in a ground wire provided on a side of a flexible wiring board to which a piezoelectric element is connected. Since the ground wire and the land sections are connected by only a thin connection section, the solder deposited on the land sections does not flow to the ground wire.

Abstract: There is provided a circuit board that is fixed to a liquid supplying unit installed to a liquid ejecting apparatus by being inserted into the liquid ejecting apparatus having a plurality of first apparatus-side terminals in a predetermined insertion direction. The circuit board includes a board main body that includes a first opening portion that is used for determining the position of the circuit board with respect to the liquid supplying unit, and a plurality of first top-face terminals, disposed on a first face of the board main body, that is brought into contact with at least a part of the plurality of first apparatus-side terminals and is arranged in the direction approximately perpendicular to the insertion direction when being installed to the liquid ejecting apparatus.

Abstract: A liquid ejecting head unit includes a liquid ejecting head that ejects a liquid, a first holding member that holds the liquid ejecting head, and a second holding member positioned on the first holding member. The liquid ejecting head includes a nozzle face having a nozzle opening for ejecting the liquid and a flexible first wiring substrate having that can be erected in a direction perpendicular to the nozzle face. The first holding member has a wiring substrate inserting hole that contains the first wiring substrate, and is held by the second holding member on a side opposite to the liquid ejecting head. The first wiring substrate of the liquid ejecting head and a connection member electrically connected to a second wiring substrate are electrically connected to each other on the first holding member side of the second holding member.

Abstract: An ink-jet head includes two shield plates extending on the surface of the passage unit in a longitudinal direction of the passage unit. Two shield plates confront each other. The surface of the passage unit is provided with two grooves extending up to the middle of the passage unit in a thickness direction of the passage unit. The shield plate is provided at its circumference with a contact line linearly extending and coming into contact with a plane formed on the surface of the passage unit. The shield plate is provided with a projection adjacent to the contact line and protruding from the contact line. The projection is fitted into the groove. The reservoir unit, the actuator unit, and the wiring member are included in a range maintained between the two shield plates with respect to the lateral direction of the passage unit.

Abstract: A central processor for a camera having printing capabilities has a CPU core. A data cache is connected to the core. A vector processor is connected to the core via the data cache. A RAM interface is connected to the data cache to permit communication with a RAM. An input buffer is connected to the processor. An image sensor interface is connected to the input buffer for communication with the processor. A card reader interface is connected to the input buffer for communication with the processor. An output buffer is connected to the processor. A printhead interface is connected to the output buffer for communication with the processor.

Abstract: The ink cartridge includes an ink supply port formed at a position, offset to one side, of a wall configuring an ink container body; a positioning projecting portion, formed on one wall out of two opposing walls adjacent the wall, whose upper surface and side portion are regulated in position when the cartridge has been mounted on a recording apparatus; a lever, formed on the other wall out of the two walls, maintaining a normal hinged-open state and having a projection that is forcibly displaced outward when the cartridge is mounted on the recording apparatus; and electrodes that are connected to a memory unit storing information on the ink in an ink container and formed on the positioning projecting portion.

Abstract: The invention relates to a cradle unit for receiving a print cartridge to form a print engine. The cradle unit includes a main body defining an opening for receiving said cartridge, the main body having a frame structure including end plates with drive and exit rollers mounted therebetween. The cradle unit also includes a printed circuit board (PCB) pivotally mounted between the end plates for housing control electronics for controlling the operation of the print engine. Also included is a cover assembly for securing said cartridge in the opening, the cover assembly pivotally mounted between the end plates, the cover assembly configured to pivot the PCB into electrical contact with a printhead controller on the cartridge when in a closed position, and to pivot the PCB out of electrical connection with said printhead controller when in an open position.

Abstract: A liquid discharge head comprising a liquid discharge substrate in which a first liquid supply port being a penetration port for supplying a liquid is formed and is provided with a first electrode receiving electric energy for discharging the liquid on a surface thereof on one side, a supporting member which is opposed to the first electrode and a second liquid supply port being a penetration port for supplying the liquid is formed to communicate with the first liquid supply port, the supporting member provided with a second electrode for transmitting the electric energy to the first electrode on a surface opposed to the first electrode, and a conductive first intermediate member abutting with both of the first electrode and the second electrode to electrically connect the first electrode and the second electrode, wherein an abutting surface of the first intermediate member abutting with the first electrode is flattened.

Abstract: In a piezoelectric actuator for an ink-jet printhead, and a method of forming the same, formed on a flow path plate having a pressurizing chamber, the piezoelectric actuator for applying a driving force for ink ejection to the pressurizing chamber, the piezoelectric actuator includes a lower electrode formed on the flow path plate, a bonding pad formed on the flow path plate to be insulated from the lower electrode, wherein a driving circuit for voltage application is bonded to an upper surface of the bonding pad, a piezoelectric layer formed on the lower electrode at a position corresponding to the pressurizing chamber, wherein an end of the piezoelectric layer extends onto the bonding pad, and an upper electrode formed on the piezoelectric layer, wherein an end of the upper electrode extends beyond the end of the piezoelectric layer and contacts the upper surface of the bonding pad.

Abstract: A liquid discharge head includes a liquid discharge substrate containing an energy generating element and a liquid discharge port, a flow path member of a resinous material fixed to the liquid discharge substrate and having at least a liquid supply path, a sealing material of a resinous material, a concave part, and a support substrate, wherein a distance L1 from a lateral face of the concave part of the flow path member to an end of the support substrate, a distance L2 from the lateral face of the concave part to a lateral face of the liquid discharge substrate, a linear expansion coefficient E1 of the flow path member and a linear expansion coefficient E2 of the sealing material satisfy a relation: L1×E1>L2×E2.

Abstract: A flexible circuit having improved corrosion resistance and method therefor. The flexible circuit includes, a polymeric support substrate, a conductive layer providing tracing attached to a first surface of the support substrate, and lead beams in electrical communication with the tracing for attaching the flexible circuit to a micro-fluid ejection head. A plasma polymerized layer is deposited on at least a portion of the conductive layer to reduce corrosion of the conductive layer. The plasma polymerized layer may also improve adhesion between the flexible circuit and an adhesive use to attach the flexible circuit to a structure.

Abstract: An ink cartridge for an ink jet printer includes a substratum and a cover attached to the substratum and having an aperture provided therein. A printhead is attached to the substratum and provided at least partially within the aperture. At least one connector extends from the printhead into the aperture, and an adhesive material covers at least a portion of the at least one connector. At least one barrier is provided for preventing the adhesive material from flowing to locations away from the at least one connector.

Abstract: A printer is provided having a removably secured cradle in which a cartridge having a pagewidth printhead and printing fluid supply is removably received. The cradle has a printed circuit board mounted on pivoting arms such that terminals on the printed circuit board contact, upon the pivoting arms being pivoted toward the cartridge, corresponding terminals of the cartridge, and a controller for controlling operation of the received cartridge via the connected terminals of the cradle and cartridge.

Abstract: An inkjet nozzle assembly comprises a nozzle chamber positioned on a substrate and an actuator for ejecting an ink droplet from a nozzle aperture when a resistive element of the actuator is heated by an electrical current. The resistive element of the actuator is spaced apart from the substrate.

Abstract: An ink jet type printing apparatus in which an ink supply needle is located near one side in a direction perpendicular to the reciprocated directions of a carriage, a circuit board is mounted on a wall of an ink cartridge in the vicinity of the side on which an ink supply port is formed and plural contacts for connecting to external control means are formed on the exposed surface of the circuit board.

Abstract: A printhead is provided having ejection nozzle integrated circuits, flexible printed circuit boards for connecting electrical signals to associated ones of the integrated circuits and controllers each connected to at least one of the integrated circuits via the respective flexible printed circuit board for controlling the printing operation of the integrated circuits. Each controller is provided on a respective printed circuit board. The printed circuit boards are adjacent one another and each have recessed portions which adjoin recessed portions in the adjacent printed circuit boards. The adjoined recessed portions receive an electrical connecting member for interconnecting the controllers of adjacent printed circuit boards such that each interconnected controller is able to control the printing operation of the integrated circuits.

Abstract: A recording apparatus for performing recording by reciprocally moving a liquid discharge head includes the liquid discharge head, which includes a case, a connection terminal group including a plurality of connection terminals capable of electrically connecting to the recording apparatus and which is provided on one face of the case, a liquid discharge substrate for discharging a liquid from a discharge port according to a signal transmitted from the recording apparatus via the connection terminals, and a supporting substrate supporting the liquid discharge substrate, which is provided on another one face of the case.

Abstract: A cradle unit for receiving a printer cartridge unit includes a printed circuit board (PCB) on which a print engine controller for controlling a printhead of the printer cartridge unit is provided, the PCB having a row of electrical contacts; a cover assembly movable between a closed position where the printer cartridge unit is mechanically secured in the cradle unit, and an opened position where removal of the printer cartridge unit from the cradle unit is facilitated; a pair of arms for supporting the PCB therebetween, each of the pair of arms having a grooved portion; and a pair of tension springs, one end of each tension spring being engaged with the grooved portion of respective arms, and another end of each tension spring being engaged with the cover assembly. The cover assembly, pair of arms, and tension springs are configured to bias the row of electrical contacts into electrical contact with the printer cartridge when the cover assembly is moved from the opened position to the closed position.

Abstract: A circuit element which ensures an operation of a driving IC chip and a recording element, is mounted between a power supply and the driving IC chip of a flexible flat cable. Since the circuit element is arranged so as to avoid a bending portion of the flexible flat cable, even in a case of mounting the circuit element near the driving IC chip, it is possible to prevent the circuit elements from being peeled off, and to let the driving IC chip and the heat sink make a close contact assuredly.

Abstract: A droplet jet head includes a nozzle substrate having a plurality of nozzle holes; a cavity substrate having recesses whose bottoms serve as diaphragms, and the recesses serving as ejection chambers; an electrode substrate having separate electrodes opposed to the diaphragms; a reservoir substrate having a recess serving as a common droplet chamber for supplying droplets to the ejection chambers, through holes for transferring the droplets from the common droplet chamber to the ejection chambers, and nozzle communicating holes for transferring the droplets from the ejection chambers to the nozzle holes; and a driver IC that supplies a driving signal to the separate electrodes. The cavity substrate has a first hole, and the reservoir substrate has a second hole. The first hole and the second hole communicate with each other to form a housing. The driver IC is housed in the housing.

Abstract: A method of using a flexible circuit, including attaching a first portion of the flexible circuit, via an attaching surface of the flexible circuit, to a first surface of a chip carrier. Statically bending a bending portion of the flexible circuit around an edge formed at the intersection of the first surface of the chip carrier, and a second surface of the chip carrier. Adhesively attaching a second portion of the flexible circuit, via the attaching surface, to the second surface of the chip carrier, where the second portion of the flexible circuit has at least one first anchor structure formed in the attaching surface, where the at least one first anchor structure is adapted to accept an adhesive.

Abstract: A recording head includes a substrate provided with a recording element that generates energy for ejecting liquid and electrical wiring that supplies power to the recording element; and a passage-forming member provided in contact with one face of the substrate and having a nozzle for ejecting the liquid and a passage for supplying the liquid to the nozzle. A groove formed by a through-hole provided in the passage-forming member is disposed such that a bottom face of the groove is located along and above the electrical wiring and positioned so as not to overlap an edge of the electrical wiring.

Abstract: A method processes electrical connections in a micro-fluidic device to reduce mechanical cross-talk and improve actuator performance. The method includes applying conductive adhesive to an electrode overlying a piezoelectric material, contacting the conductive adhesive with an electrical contact pad mounted to a support member to cover the electrode and piezoelectric material with the support member, and removing a portion of the support member that covers the electrical contact pad, the electrode, and the actuator.

Abstract: An ink jet printer having a print head unit on which ink ejecting nozzles are arranged. The ink jet printer includes an ink supplying unit having a solid ink storage unit to store solid ink, and a heating unit to melt the solid ink into liquid ink, an ink reservoir to accommodate and store the liquid ink from the ink supplying unit, which is extended so as to correspond to the length of the print head unit, and a heater to heat the liquid ink, disposed in the lengthwise direction of the ink reservoir.

Abstract: A printhead for an inkjet printer, that has a printhead IC with an array of nozzles for ejecting ink and a support structure for mounting the printhead IC in the printer adjacent a paper path. The printhead IC is mounted on a face of the support structure that, in use, faces the paper path. A flexible printed circuit board (flex PCB) has drive circuitry for operating the array of nozzles on the printhead IC. The drive circuitry has circuit components connected by traces in the flex PCB, and contacts for receiving print data from the print engine controller. The flex PCB being mounted to the support structure at the contacts onto a face that does not face the paper path such that the flex PCB extends through a bent section between the printhead IC and the contacts. The printhead IC and the circuit components are adjacent each other and separated from the contacts by the bent section of the flex PCB.

Abstract: A liquid discharging head includes a piezoelectric actuator including a plurality of piezoelectric elements and a plurality of electric supply members. The plurality of piezoelectric elements is provided in a row and includes an even number of piezoelectric element columns provided via a groove at a predetermined pitch. The plurality of electric supply members supplies electricity to the plurality of piezoelectric elements and includes electrodes disposed for the alternate piezoelectric element columns of the respective piezoelectric elements. One end of the electric supply member is positioned outwardly from an outer end of an endmost driven piezoelectric element column to which the electrode is connected, while another end of the electric supply member is positioned inwardly from an outer end of an endmost non-driven piezoelectric element column to which the electrode is not connected, in a manner that adjacent electric supply members do not overlap.

Abstract: An ink cartridge for an ink jet printer includes a substratum and a cover attached to the substratum and having an aperture provided therein. A printhead is attached to the substratum and provided at least partially within the aperture. At least one connector extends from the printhead into the aperture, and an adhesive material covers at least a portion of the at least one connector. At least one barrier is provided for preventing the adhesive material from flowing to locations away from the at least one connector.

Abstract: A printhead assembly includes a printhead module including two or more printhead integrated circuits and an electrical connector for connecting electrical signals to the printhead integrated circuits. First and second power supplies are provided at first and second ends of the printhead assembly, the second end being opposite to the first end. The printhead assembly further includes a plurality of electrical conductors for providing power to the printhead integrated circuits from the first and second power supplies. The plurality of electrical conductors extend transverse to a media feed path defined through the printhead assembly. The plurality of electrical connectors are arranged as first and second groups of electrical conductors, the first and second groups having a combined lengths at least equal to a width of the media feed path.

Abstract: A ceramic printed circuit board (PCB) and an inkjet printhead assembly using the ceramic PCB. A ceramic PCB in which a plurality of layers are stacked includes a plurality of terminals to receive an electric signal from an external source, a plurality of circuit patterns connected to the plurality of terminals to transmit the electric signal, and a termination resistor having a predetermined thickness disposed between the plurality of circuit patterns, wherein the termination resistor is mounted between the plurality of stacked layers.

Abstract: A liquid container mountable on a liquid jetting apparatus, comprises: an electrical circuit including a first electrical device and a second electrical device; a first terminal; a second terminal; and a third terminal. The electrical circuit being constituted such that the liquid jetting apparatus is able: to execute sending of signals to the first electrical device and sending of signals to the second electrical device using a terminal potential difference which is a difference between electric potential inputs to the first and second terminals, to selectively execute either one of the sending of signals to the first electrical device and the sending of signals to the second electrical device by using different magnitudes of the terminal potential difference, and to execute receiving of signals from the first electrical device via the third terminal.

Abstract: Disclosed is a printing head having connection terminals for performing an electrical connection of signals including drive signals of print elements by contacting connection terminals in an apparatus side when the head is mounted onto an ink jet printing apparatus. It is made to guarantee connections of all terminals by detecting contacts of a part of terminals. Among the terminals in the head, terminals whose distances from the connection terminals in the printing apparatus become maximum when a deviation occurred in the mounting, are used as terminals for contact detection. For example, from among the connection terminals arranged in a planar area, which is rectangular-shaped, terminals positioned in corners are used as the terminals for the contact detection. When the contacts of these terminals are detected, the connections of all the terminals inside the area can be guaranteed.

Abstract: A carriage device includes a circuit substrate having a conductive connection portion, a connector having a plurality of contact arms, a connector holder in which the circuit substrate and the connector are installed, and a carriage in which a recording head unit is built and an ink cartridge having a conductive connection portion is housed and to which the connector holder is attached with both ends of the connector holder held, wherein contact terminals of the plurality of contact arms of the connector elastically contact the conductive connection portion of the circuit substrate and the conductive connection portion of the ink cartridge which are respectively disposed on both sides of the connector so as to electrically conduct between the circuit substrate and the ink cartridge, wherein a back side support member contacting the circuit substrate for regulating deformation of a face of the circuit substrate on the basis of the elastic contact is provided in the carriage, and wherein a deformation preventin

Abstract: A printing head is provided by which, even when the stress is caused by a connecting section between a printing element substrate-side electrode terminal and a lead when the connecting section is heated and is subsequently cooled, the connecting section can be suppressed from having a deteriorated reliability. The printing head is structured so that the electrode pads are connected to the inner leads via stud bumps. The connection between the electrode pad and the stud bump is performed by applying ultrasonic oscillation to the connecting part in the first direction while the electrode pad is having a contact with the stud bump. The connection between the inner lead and the stud bump is performed by applying ultrasonic oscillation to the connecting part in the second direction intersecting with the first direction while the inner lead is having a contact with the stud bump.

Abstract: Sealants discharged from a syringe are irradiated with activation energy rays from a lamp. Thereby, it takes a predetermined time until the curing of the sealant begins after the irradiation of the activation energy rays. Therefore, the sealant can pass through between the lead wires in the meantime. As a result, a necessary amount of the sealant can enter into the lower side of the lead wire. Thereafter, the sealant begins to be cured and is gradually cured. In consequence, the sealant does not go through between the lead wires to flow into the lower side of the lead wire or flow out into locations other than the sealing location, and can gradually accumulate at the upper side of the lead wire to provide a sufficiently thick sealant.

Abstract: A liquid ejection recording head includes a recording element substrate including an ejection energy generation element and a plurality of electrode pads, the ejection energy generation element being configured to generate ejection energy by which to eject a liquid, the liquid ejection recording head also includes an electric wiring substrate including a plurality of lead electrodes connected to corresponding electrode pads to apply an electric signal to the ejection energy generation element, wherein one or more of the plurality of electrode pads are not connected to any lead electrode, and each lead electrode connected to an electrode pad adjacent to any of the one or more of the plurality of electrode pads not connected to any lead electrode has a wide part whose width is greater than the width of the other lead electrodes.

Abstract: An inkjet printhead substrate includes: a heat generating element configured to generate energy for ejecting ink; an electric wire electrically connecting the heat generating element and an electrode lead provided on a flexible film wiring substrate; a protecting film configured to protect the electric wire; an electrode pad to which the electrode lead is connected, the electrode pad being formed by providing an opening in the protecting film at a position above the electric wire; a region to which a sealing resin configured to protect an electrically connected portion of the electrode pad and the electrode lead is to be applied; and an ink-detecting electrode composed of a metal wire and formed at the region to which the sealing resin is to be applied. The metal wire has a smaller width than an opening provided in the protecting film from which the metal wire is exposed.

Abstract: A liquid ejecting head for ejection liquid includes an electric wiring member including a plurality of contact pads which are electrically contactable to a liquid ejecting apparatus; a storing element for storing individual information; and a liquid ejection member, provided with an ejection outlet, for ejecting the liquid using electric energy supplied through a part of the plurality of contact pads. The contact pads include an array of information contact pads electrically connected with the storing element, a voltage source contact pad for supplying the electric energy and a grounding contact pad. Directly adjacent to each of front and rear sides of the information contact pads constituting the array, the voltage source contact pad or the grounding contact pad is disposed.

Abstract: A web press printer includes a frame spaced above a media support and at least one printbar removably secured to the frame. The at least one printbar supports an array of printheads extending generally transverse to the media support. The at least one printbar also includes a connector and a routing mechanism. The connector is configured to releasably connect to an element supply that is external to the at least one printbar. The routing mechanism is in communication with the element supply via the connector and configured to separately route the supplied element to each respective printhead.

Abstract: An ink jet printing head is attachable to/detachable from an ink jet printing apparatus and includes an electric wiring member formed of a TAB tape to which terminals are provided, and has a wiring exposed through an end section of the electric wiring member, the terminals accepting signals by making contact with a connection portion on the part of the apparatus when the head is attached to the apparatus. An opening is provided in a supporting member which supports the electric wiring member, the opening extending in a direction traversing an area where the electric wiring member is supported. Thereby, movement of liquid, such as water and ink, to the end section is blocked, the liquid moving through a gap between a back surface of the electric wiring member and a surface of the supporting member.

Abstract: A liquid ejection head having a flow channel plate in which liquid flow channels are formed and an actuator forming plate on which actuators for generating pressure which ejecting the liquid are formed. Plate bonding parts through which the flow channel plate and the actuator forming plate are bonded together, and electrical bonding parts through which electrical signals are supplied to the actuators, are bonded by non-conductive pastes having same curing conditions.

Abstract: An ink jet recording head substrate is provided with: an array of a plurality of energy generating bodies for generating energy utilized to discharge ink; and an ink supply port arranged along the array to supply ink to the plurality of energy generating bodies, the array and the ink supply port each extending in a longitudinal direction of the ink jet recording head substrate, the ink jet recording head substrate comprising: a first terminal electrically connected with the plurality of energy generating bodies, the first terminal being arranged along beside a first side of the ink jet recording head substrate, the first side extending in a cross direction intersecting the longitudinal direction; and a second terminal electrically connected with the plurality of energy generating bodies, the second terminal being arranged beside a second side of the ink jet recording head substrate, the second side extending in the longitudinal direction, so as to be arranged in an area between the first side and a phantom li

Abstract: The liquid ejection head comprises: a plurality of pressure chambers which are provided correspondingly to a plurality of ejection holes formed on a first wall defining the pressure chambers, the ejection holes being two-dimensionally arranged and ejecting liquid toward a liquid receiving medium, the pressure chambers accommodating the liquid to be ejected from the ejection holes; a common liquid chamber which supplies the liquid to the pressure chambers; a plurality of piezoelectric elements which are provided correspondingly to the pressure chambers and are arranged on a second wall defining the pressure chambers opposing the first wall, the piezoelectric elements each having individual electrodes to which drive signals are applied; a plurality of extending electrodes which extend from the individual electrodes of the piezoelectric elements and are electrically connected to the individual electrodes; a structural member which is bonded to a first surface of the second wall reverse to a second surface thereo