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Details

Veröffentlichungs-Nr.

EP4803315

Anmeldetag

4. Februar 2026

Veröffentlichung

9. September 2026

Rechtsraum

EP

Abstract

A liquid ejection head includes a nozzle, a pressure chamber that communicates with the nozzle and stores a first liquid, an actuator configured to change a volume of the pressure chamber, a manifold unit that forms a first flow path running along the actuator and through which a temperature control liquid flows, a driving IC configured to drive the actuator, and a temperature adjustment structure that includes: a temperature control manifold that forms a second flow path running along the driving IC and through which the temperature control liquid flows, and a pair of temperature control blocks, one of which forms a branching flow path and the other of which forms a merging flow path. A heat conductivity of the pair of temperature control blocks is lower than a heat conductivity of the temperature control manifold.

Anmelder

Firma

RISO Technologies Corporation

Land

🇯🇵 Japan