JP2006218808A5 - - Google Patents

Claims (11)

It comprises a electrothermal transducer for generating thermal energy for discharging liquid, a liquid-supplying port for supplying the liquid from the back surface provided through in a thickness direction to said electrothermal converting element side on the surface In the liquid discharge head substrate in which a plurality of electrothermal conversion elements are arranged to form a plurality of electrothermal conversion element groups,
By combined to the discharge port configuration member having a plurality of discharge ports corresponding to each of a plurality of pre-Symbol electrical transducers, a plurality of liquid flow paths communicated with the discharge port, the length of the liquid supply port a common liquid chamber communicating with the side direction of the side edges, and a plurality of liquid introduction portion located between said liquid flow path multiple and the common liquid chamber is configured,
Before SL liquid body introduction part is passed through each communication with the liquid flow path of multiple,
Each of the plurality of pre-Symbol liquid body passage, the distance from the upstream end of the flow direction of the liquid to the center of the main surface of each of the electrothermal converting element is equal properly,
The liquid discharge head substrate according to claim 1, wherein an arrangement direction of the electrothermal conversion elements in the electrothermal conversion element group is inclined with respect to a long side direction of the liquid supply port . The liquid discharge head substrate according to claim 1, wherein the liquid introduction portion is recessed on the surface.   3. The liquid discharge head substrate according to claim 1, wherein at least a part of the liquid introduction part and the common liquid chamber are formed penetrating in a thickness direction. The electrothermal conversion element to one or claims 1 are regularly arranged each with respect to the long side direction and short side direction of the substrate for a liquid discharge head for each plurality any one of 3 The substrate for liquid discharge heads as described. 2. The liquid discharge head substrate according to claim 1 , wherein the electrothermal conversion element group is arranged in a plurality of rows on one side in a long side direction of the liquid supply port. The arrangement direction of the electrothermal converting element array substrate for a liquid discharge head according to claim 1 which is inclined in the range of the inclination angle of 30 ° to 60 ° with respect to the long side direction of the liquid supply port. The electrothermal conversion element group is a substrate for a liquid discharge head according to any one of claims 1 to 6 having an electrothermal converting element a plurality of types having different sizes. A liquid discharge head characterized by comprising a liquid discharge head substrate according, and the discharge port component to any one of claims 1 to 7. The liquid discharge head according to claim 8 , wherein the liquid flow path is connected adjacent to either the common liquid chamber or the liquid introduction portion. A recording apparatus that performs recording by discharging a liquid onto a recording material by the liquid discharge head according to claim 8 . It is a manufacturing method of the liquid discharge head according to claim 8 or 9 ,
A method of manufacturing a liquid discharge head, comprising the step of forming the liquid introduction portion on at least one of the liquid discharge head substrate and the discharge port constituting member.