Abstract: A liquid ejecting head includes: a circuit board extending in a first direction and having a first surface and a second surface opposite the first surface in a second direction perpendicular to the first direction; a main body including head units; wiring members each extending from each head unit toward the circuit board; contacts including a first contact and a second contact connected to corresponding wiring members; a first support member facing the first surface; and a second support member facing the second surface. The first support member has a first protrusion protruding toward the first surface in the second direction and arranged at a position aligned with the second contact in the second direction. The second support member has a second protrusion protruding toward the second surface in the second direction and arranged at a position aligned with the first contact in the second direction.

Abstract: A liquid ejection device is disclosed. One device includes a liquid supply member defining a liquid supply channel that is in communication with a common liquid chamber via an outlet of the liquid supply channel. The outlet and the common liquid chamber extend along a longitudinal direction respectively. The liquid supply member includes a plurality of ribs located within the liquid supply channel, the plurality of ribs are disposed side by side in the longitudinal direction. The plurality of ribs includes a first rib, a second rib and a third rib. A distance from the first rib to the third rib in the longitudinal direction is smaller than a distance from the first rib to the second rib in the longitudinal direction.

Abstract: An inkjet head includes a plurality of head units including a first head unit and a second head unit. Each head unit has a plurality of nozzles and a plurality of drive elements. The second head unit has an ejection performance of nozzles lower than an ejection performance of nozzles of the first head unit. The second head unit is farther from a center portion of the inkjet head than the first head unit is. A drive unit is configured to apply a drive voltage for generating energy to each of the plurality of drive elements included in each of the plurality of head units. The drive voltage applied to each of the plurality of drive elements included in the first head unit is lower than the drive voltage applied to each of the plurality of drive elements included in the second head unit.

Abstract: In a printer, an inkjet head includes a plurality of head units. Each head unit has a nozzle layout area in which nozzles are arranged in an alignment direction crossing a conveying direction. The head units are arranged in a first row and a second row in the conveying direction. One head unit in the first row and another head unit in the second row define an overlap length. The overlap length is a length in the alignment direction of an overlap region in which the nozzle layout area of the one head unit and the nozzle layout area of the another head unit partially overlap in the conveying direction. The one head unit is shifted from the another head unit in the alignment direction. The overlap length in a center portion of the inkjet head is larger than that in each end portion of the inkjet head.

Abstract: There is provided a liquid discharge apparatus including: driving elements; a first member including a first trace and a first IC connected to ones of the plurality of driving elements; a second member including a second trace and a second IC connected to other ones of the driving elements; and a metallic member arranged on one side with respect to the plurality of driving elements in a second direction orthogonal to the liquid discharge surface, the metallic member including: a body portion extending in the first direction while straddling over the driving elements, a first projection projected from the body portion toward the liquid discharge surface; and a second projection projected from the body portion toward the liquid discharge surface, wherein the first IC is supported by the first projection and the second IC is supported by the second projection.

Abstract: There is provided a liquid discharge apparatus including: driving elements; a first member including a first trace and a first IC connected to ones of the plurality of driving elements; a second member including a second trace and a second IC connected to other ones of the driving elements; and a metallic member arranged on one side with respect to the plurality of driving elements in a second direction orthogonal to the liquid discharge surface, the metallic member including: a body portion extending in the first direction while straddling over the driving elements, a first projection projected from the body portion toward the liquid discharge surface; and a second projection projected from the body portion toward the liquid discharge surface, wherein the first IC is supported by the first projection and the second IC is supported by the second projection.