Fluid ejection device

US10717274B2 · kind B2 · utility

Assignee

• HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. · US

Inventors

• Alexander Govyadinov · Corvallis, US
• Paul A. Richards · Corvallis, US

Key dates

• Filing date: Nov 15, 2019
• Grant date: Jul 21, 2020
• Expiry date: Nov 15, 2039

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B41J2202/12
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

A fluid ejection device includes a fluid slot, a fluid ejection chamber communicated with the fluid slot, a drop ejecting element within the fluid ejection chamber, a fluid circulation channel communicated at one end with the fluid slot and communicated at another end with the fluid ejection chamber, a fluid circulating element within the fluid circulation channel, and a channel wall separating the fluid ejection chamber and the fluid circulation channel. The fluid circulation channel includes a channel loop, and a width of the channel wall is based on a width of the channel loop and a width of the fluid ejection chamber.