Fluid ejection device
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United States of America Patent
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Apr 26, 2005
Grant Date -
Nov 4, 2004
app pub date -
Apr 30, 2003
filing date -
Apr 30, 2003
priority date (Note) -
In Force
status (Latency Note)
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Abstract
In one embodiment, the present invention recites a fluid ejection device comprising a first drop ejector configured to cause fluid having a first drop weight to be ejected from the firing chamber, and includes a first heating element. A first bore, disposed within an orifice layer proximate to the first drop ejector, is associated with the first drop ejector. A second drop ejector is configured to cause fluid having a second drop weight to be ejected from the firing chamber, and includes a second heating element A second bore, disposed within the orifice layer proximate to the second drop ejector, is associated with the second drop ejector. A voltage source, coupled in series with the first drop ejector and the second drop ejector, is configured to generate a first voltage for activating the first drop ejector individually and a second voltage for activating the first drop ejector and the second drop ejector substantially concurrently.
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