Abstract: A first channel member of a fluid discharge head includes a plurality of discharge holes, a plurality of pressurization chambers individually linked to the discharge holes, and first and second shared channels linked to the pressurization chambers. The first shared channel opens at a plurality of first openings linked to the pressurization chambers, includes a first connection region that is a range of distribution of the plurality of first openings in the channel direction of the first shared channel. The second shared channel opens at a plurality of second openings linked to the plurality of pressurization chambers. The second shared includes a second connection region that is a range of distribution of the plurality of second openings in the channel direction of the second shared channel. The first channel member further includes a bypass channel linked to the first and second connection regions in parallel with the pressurization chambers.

Abstract: A liquid discharge head includes: a first flow path member that discharges a liquid; a second flow path member including a supply flow path for sending the liquid to the first flow path member, and a collecting flow path for collecting the liquid from the first flow path member. The supply flow path includes a supply branch flow path that branches out at a center portion of the second flow path member in the first direction and extends in a first direction and in a third direction opposite thereto. The collecting flow path includes a collecting branch flow path that branches out at the center portion of the second flow path member in the first direction and extends in the first direction and in the third direction. When viewed in plan, the supply branch flow path and the collecting branch flow path overlap each other.

Abstract: A liquid discharge head 2 of the present disclosure includes: a flow path member 4 having a plurality of pressurizing chambers 10 connected to respective discharge holes 8, a first common flow path 20 commonly connected to the plurality of pressurizing chambers 10, and a second common flow path 22 commonly connected to the plurality of pressurizing chambers 10; and a plurality of pressurizing units 50 that pressurizes the respective pressurizing chambers 10, in which the first common flow path 20 extends in a first direction and is open to an outside of the flow path member 4 at both end portions, and the second common flow path 22 extends in the first direction and is open to the outside of the flow path member 4 at both end portions.

Abstract: A first channel member of a fluid discharge head includes a plurality of discharge holes, a plurality of pressurization chambers individually linked to the discharge holes, and first and second shared channels linked to the pressurization chambers. The first shared channel opens at a plurality of first openings linked to the pressurization chambers, includes a first connection region that is a range of distribution of the plurality of first openings in the channel direction of the first shared channel. The second shared channel opens at a plurality of second openings linked to the plurality of pressurization chambers. The second shared includes a second connection region that is a range of distribution of the plurality of second openings in the channel direction of the second shared channel. The first channel member further includes a bypass channel linked to the first and second connection regions in parallel with the pressurization chambers.

Abstract: A liquid discharge head includes: a first flow path member that discharges a liquid; a second flow path member including a supply flow path for sending the liquid to the first flow path member, and a collecting flow path for collecting the liquid from the first flow path member. The supply flow path includes a supply branch flow path that branches out at a center portion of the second flow path member in the first direction and extends in a first direction and in a third direction opposite thereto. The collecting flow path includes a collecting branch flow path that branches out at the center portion of the second flow path member in the first direction and extends in the first direction and in the third direction. When viewed in plan, the supply branch flow path and the collecting branch flow path overlap each other.

Abstract: A liquid discharge head 2 of the present disclosure includes: a flow path member 4 having a plurality of pressurizing chambers 10 connected to respective discharge holes 8, a first common flow path 20 commonly connected to the plurality of pressurizing chambers 10, and a second common flow path 22 commonly connected to the plurality of pressurizing chambers 10; and a plurality of pressurizing units 50 that pressurizes the respective pressurizing chambers 10, in which the first common flow path 20 extends in a first direction and is open to an outside of the flow path member 4 at both end portions, and the second common flow path 22 extends in the first direction and is open to the outside of the flow path member 4 at both end portions.