Fluid ejection device with integrated ink level sensors
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United States of America Patent
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Jul 18, 2017
Grant Date -
Feb 9, 2017
app pub date -
Jan 3, 2014
filing date -
Jan 3, 2014
priority date (Note) -
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status (Latency Note)
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Abstract
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.
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