Liquid ejection head
AssigneeRISO Technologies Corporation
InventorSunao TAKENAKA
Life of this patent
Estimating the term…
Abstract
A liquid ejection head includes a nozzle plate extending in a first direction and having a nozzle for ejecting a liquid, and a plurality of flow path substrates extending in the first direction and each having an opening or a groove by which a pressure chamber communicating with the nozzle and a resistance flow path communicating with the pressure chamber are formed. At least one of the flow path substrates includes a first reinforcing wall portion at a location at which the pressure chamber is formed. In the first direction, a distance between one end of the first reinforcing wall portion that is closer to the nozzle than the other end and an edge of the nozzle that is closest to the one end of the first reinforcing wall portion is 75 μm to 175 μm.
Claims15
A liquid ejection head comprising:
- a nozzle plate extending in a first direction and having a nozzle for ejecting a liquid;
- and
- a plurality of flow path substrates extending in the first direction and each having an opening or a groove by which a pressure chamber communicating with the nozzle and a resistance flow path communicating with the pressure chamber are formed, wherein
- at least one of the flow path substrates includes a first reinforcing wall portion at a location at which the pressure chamber is formed, and
- in the first direction, a distance between one end of the first reinforcing wall portion that is closer to the nozzle than the other end and an edge of the nozzle that is closest to the one end of the first reinforcing wall portion is 75 μm to 175 μm.
Dependencies are inferred from the claim text.