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Details

Veröffentlichungs-Nr.

EP4793045

Anmeldetag

15. Januar 2026

Veröffentlichung

19. August 2026

Rechtsraum

EP

IPC

B41J2/14

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.

Anmelder

Firma

RISO Technologies Corporation

Land

🇯🇵 Japan

Fachgebiete