Fluid ejection device with ground electrode exposed to fluid chamber
US9776419B2 · kind B2 · utility
2Cited by
4References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 7, 2014 |
| Grant date | Oct 3, 2017 |
| Priority date | — |
| Expiry date | Mar 7, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2202/18
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An example provides a fluid ejection device including a fluid feed slot, a fluid chamber between a nozzle layer and a passivation layer, and a printhead-integrated sensor to sense a property of a fluid in the fluid chamber. The sensor may include a ground electrode exposed to the fluid chamber through a via in the passivation layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.