Liquid ejecting head and liquid ejecting apparatus

摘要

A common liquid chamber that communicates with a plurality of pressure chambers includes at least one inflow port into which a liquid flows, a plurality of supply openings, arranged in a row, for supplying the liquid to each of the pressure chambers, and a slanted surface that, when viewed from a second direction that is orthogonal to an arrangement direction in which the supply openings are arranged and that follows a substrate in which the common liquid chamber is formed, is slanted so that the slanted surface overlaps with the arrangement of some of the supply openings including supply openings located at ends of the arrangement direction and approaches the arrangement of the supply openings at the end areas of the arrangement direction. At least part of the inflow port is located within the range of the arrangement of the stated some of the supply openings when viewed from the second direction. An angle of the slanted surface and a position of the inflow port are set so that a flow rate of the liquid is no less than 0.025 m/s in the vicinity of an end of the inflow port in the arrangement direction when the liquid is sucked from the nozzle openings by applying negative pressure to the nozzle openings.

主权项

1. A liquid ejecting head comprising:
a pressure chamber that communicates with a nozzle opening; and a common liquid chamber that communicates with a plurality of the pressure chambers, the common liquid chamber including: at least one inflow port into which a liquid flows; a plurality of supply openings, arranged in a row, for supplying the liquid to each of the pressure chambers; and a slanted surface that, when viewed from a second direction that is orthogonal to an arrangement direction in which the plurality of supply openings are arranged and that follows a substrate in which the common liquid chamber is formed, is slanted so that the slanted surface overlaps with the arrangement of some of the supply openings including supply openings located at ends of the arrangement direction and approaches the arrangement of the supply openings at the end areas of the arrangement direction, at least some of the inflow ports being within a range of the arrangement of the stated some of the supply openings when viewed from the second direction; and a slope of the slanted surface and a position of the inflow port being set so that a flow rate of the liquid is no less than 0.025 m/s in the vicinity of an end of the inflow port in the arrangement direction when the liquid is sucked from the nozzle openings by applying negative pressure to the nozzle openings.