Fluid ejection device with a fluid recirculation channel

US10336070B2 · kind B2 · utility

Assignee

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

Inventors

• Nicholas Matthew Cooper McGuinness · San Diego, US
• Alexander Govyadinov · Corvallis, US
• Chris Bakker · Corvallis, US
• Lawrence H. White · Corvallis, US
• Paul A. Richards · Corvallis, US

Key dates

• Filing date: Oct 30, 2015
• Grant date: Jul 2, 2019
• Expiry date: Oct 30, 2035

Classification

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

Abstract

According to an example, a fluid ejection device may include a fluid feed slot, a plurality of fluid ejection chambers in fluid communication with the fluid feed slot, a plurality of drop ejecting elements, in which a drop ejecting element of the plurality of drop ejecting elements is positioned within each of the plurality of fluid ejection chambers, a fluid circulation channel in fluid communication at a first end of the fluid circulation channel with the fluid feed slot and in fluid communication at multiple second ends of the fluid circulation channel with the plurality of fluid ejection chambers, and a fluid circulating element within the fluid circulation channel. The fluid ejection device may also include a bubble dissipating structure positioned within the fluid circulation channel outside of the plurality of fluid ejection chambers.