RECIRCULATION FLUID EJECTION DEVICE
| Register | USPTO Patent |
|---|---|
| Application Number | 17781535 |
| Status | Pending |
| Filing Date | 2019-12-06 |
| First Publication Date | 2023-01-26 |
| Publication Date | 2023-01-26 |
| Owner | Hewlett-Packard Development Company, L.P. (USA) |
| Inventor |
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Abstract
An example recirculation fluid ejection device includes a first unit droplet generator including a first actuator and a first nozzle between a first and a second fluid feed hole, the first fluid feed hole located on a first channel and the second fluid feed hole and a first pump located on a second channel. The example device includes a second unit droplet generator including a second actuator and a second nozzle between a third and a fourth fluid feed hole, the third feed hole located on a third channel and the fourth fluid feed hole and a second pump located on a fourth channel. The first and the second actuators eject fluid at substantially the same backpressure. A first pressure measurable at an inlet of the first channel and the third channel are different from a second pressure measurable at an outlet of the second channel and the fourth channel.IPC Classes ?
- B41J 2/18 - Ink recirculation systems
- B41J 2/175 - Ink supply systems