Flüssigkeitsausstosskopf

Details

Veröffentlichungs-Nr.

EP4778730

Anmeldetag

15. Januar 2026

Veröffentlichung

22. Juli 2026

Rechtsraum

EP

IPC

B41J2/14

Abstract

Providing a liquid ejection head (100) ejecting a liquid from an ejection port (210) by applying energy to the liquid, in which the ejection port includes an opening portion (504, 504', 506) having a longitudinal direction and a transverse direction, the opening portion includes a protrusion (502, 502'), first regions (504, 504'), and a second region (506), the protrusion is arranged in each of facing positions of the ejection port in the longitudinal direction, the first regions are regions excluding the protrusions of the ejection port that are along the longitudinal direction and partitioned by the protrusions, the second region is a region excluding the protrusions of the ejection port that bridges the first regions between the facing protrusions, and M/L > 1.0 and (L - a)/2L < 0.4 are satisfied where the maximum length in the longitudinal direction is M, the maximum length in the transverse direction is L, and a half width of the protrusion is a.

Anmelder

Firma

Canon Kabushiki Kaisha

Land

🇯🇵 Japan

Fachgebiete