| 发明名称 |
FLUID EJECTION DEVICE WITH INTEGRATED INK LEVEL SENSORS |
| 摘要 |
In an embodiment, a fluid ejection device includes a fluid feed slot formed in a printhead die and a plurality of printhead-integrated ink level sensors (PILS). A fluid ejection device may include a first PILS to sense an ink level of a first chamber in fluid communication with the fluid feed slot, the first PILS to detect an empty ink level of the first chamber when the fluid ejection device is at a first ink level state, and a second PILS to sense an ink level of a second chamber in fluid communication with the fluid feed slot, the second PILS to detect an empty ink level of the second chamber when the fluid ejection device is at a second ink level state, different than the first ink level state |
| 申请公布号 |
US2017036452(A1) |
申请公布日期 |
2017.02.09 |
| 申请号 |
US201415107420 |
申请日期 |
2014.01.03 |
| 申请人 |
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. |
发明人 |
Ge Ning;Leonard Patrick |
| 分类号 |
B41J2/175 |
主分类号 |
B41J2/175 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A fluid ejection device comprising:
a fluid feed slot formed in a printhead die; a first printhead-integrated ink level sensor (PILS) to sense an ink level of a first chamber in fluid communication with the fluid feed slot, the first PILS to detect an empty ink level of the first chamber when the fluid ejection device is at a first ink level state; and a second PILS to sense an ink level of a second chamber in fluid communication with the fluid feed slot, the second PILS to detect an empty ink level of the second chamber when the fluid ejection device is at a second ink level state, different than the first ink level state. |
| 地址 |
Houston TX US |
