摘要:
A recording head includes a recording element substrate having a plurality of discharge ports discharging a liquid and energy generating elements generating energy used to discharge the liquid from the discharge ports; an electrical wiring substrate having an opening portion in which the recording element substrate is provided and for applying a driving signal to the recording element substrate; an electrical connection portion in which an electrode portion of the recording element substrate and an electrode portion of the electrical wiring substrate are electrically connected to each other by a wire; and a sealing material covering and sealing the electrical connection portion. The electrical connection portion is provided with a reference member as a reference of at least one of an upper limit position and a lower limit position of the height of the surface of the sealing material with respect to the thickness direction of the recording element substrate.
摘要:
There is inexpensively and simply provided a highly reliable printing head including a printing element substrate which is located with high positioning precision and therefore causes no occurrence of ink leak regardless of the printing head having a large printing width. An ink jet printing head comprises a plurality of printing element substrates, in each of which a plurality of ejecting openings, printing elements and an ink supply opening are provided, a support member and an ink supply member. The support member is formed of a first member and a second member that is integral with the first member so as to surround the first member, and the support member and the ink supply member are bonded in such a manner that bonding faces of the first member and the second member, and the second member are not in contact with the opening.
摘要:
A liquid ejection head includes at least one liquid ejecting substrate for ejecting liquid, a supporting member for supporting the at least one liquid ejecting substrate, the at least one liquid ejecting substrate being fixed to a main surface of the supporting member, and a plurality of liquid supplying members for supplying liquid to the at least one liquid ejecting substrate through the supporting member. A linear expansivity of each of the liquid supplying members is different from a linear expansivity of the supporting member. The plurality of the liquid supplying members are arranged along a longitudinal direction of the supporting member, with each of the liquid supplying members being bonded to a surface that is opposite the main surface of the supporting member.
摘要:
A liquid discharge head includes a recording element substrate including an energy generation element for generating energy used to discharge a liquid and a terminal electrically connected to the energy generation element, and an electric wiring board including an electrode electrically connected to the terminal via a wire to transmit an electric signal supplied from outside to the energy generation element, wherein the terminal has an area twice or more larger than a contact area between the terminal and the wire and the electrode has an area twice or more larger than a contact area between the electrode and the wire.
摘要:
A liquid discharge member includes discharge ports, and a first opening and a second opening that communicate with the discharge ports. A liquid supply member includes a first filter disposed in a gravitational direction and in a disposed direction, a first containing chamber containing the first filter, a second containing chamber containing the second filter, a first flow path connecting the first opening and the first containing chamber, and a second flow path connecting the second opening and the second containing chamber. The second filter and the first and the second flow path are disposed in an area between a surface perpendicular to the disposed direction and parallel to the gravitational direction and going through one end of the length of the first filter and a surface parallel to the first surface and going through the other end of the length of the first filter in the disposed direction.
摘要:
A liquid discharge head includes a recording element substrate having a plurality of discharge ports for discharging liquid, and a plurality of recording elements for generating energy to discharge liquid, and an electric wiring substrate electrically connecting the recording element substrate and a driving circuit substrate having a circuit for driving the plurality of recording elements, the electric wiring substrate having a plurality of first electrical contact groups including a plurality of electrical contacts, for electrically connecting with the driving circuit substrate, provided along a disposed direction in which the plurality of discharge ports are disposed. The plurality of first electrical contact groups are detachably attached to a plurality of second electrical contact groups electrically connected with the driving circuit substrate, such that adjacent first electrical contact groups do not overlap each other in the disposed direction and in a direction orthogonal to the disposed direction.
摘要:
In order to dissipate to a high degree of efficiency the heat of a liquid discharge substrate of an ink jet recording head and effectively suppress increases in the substrate temperature, in an ink jet recording head in which a liquid discharge substrate is mounted on a supporting member through a foil-shaped heat dissipation member, the area of the heat dissipation member is greater than the projected area of the liquid discharge substrate with respect to the supporting member.
摘要:
The invention provides an ink jet recording head, in which, for improving heat-dissipating property and electrode terminal connectivity and reducing production cost, second electrode terminals provided on a supporting surface of plural laminated sheets for supporting a liquid discharge substrate and to be connected with first electrode terminals of the liquid discharge substrate are provided outside an ink supply aperture formed in an outermost sheet constituting the supporting surface, and are supported by the outermost sheet and at least a sheet laminated thereunder.
摘要:
A liquid discharge head includes a discharge element including a discharge port, a liquid supply port, an electric connection terminal, and a heat transfer terminal. The discharge head also includes a supporting member including an electric connection terminal portion formed on a first surface thereof and electrically connected to the electric connection terminal, a heat transfer terminal junction portion formed on the first surface and connected to the heat transfer terminal, a plurality of through-holes extending between the first surface and a second surface of the supporting member, a partition wall portion separating the through-holes from each other, and a heat transfer path connected to the heat transfer terminal junction portion. An interval between the through-holes increases according to a direction from the first surface to the second surface. A volume of the heat transfer path increases according to the increase of the interval.
摘要:
An ink jet recording head includes a recording element substrate having an array of discharge ports and a side surface extending along an array direction of the discharge ports, and an opposite surface facing the side surface. A minimum distance is provided between the opposite surface and the side surface at least at a center portion of the side surface. Also, a distance greater than the minimum distance is provided between the opposite surface and the side surface at an end portion of the side surface in the array direction.