| Abstract: | A fluid ejection system according to this invention operates on the
principle of electrostatic or magnetic attraction. In various exemplary
embodiments, the fluid ejection system includes a sealed diaphragm
arrangement having at least one diaphragm portion and a diaphragm chamber
defined at least partially by the at least one diaphragm portion, a nozzle
hole located over the at least one diaphragm portion, an ejection chamber
defined between the nozzle hole and the least one diaphragm portion and a
secondary dielectric fluid reservoir containing a secondary dielectric
fluid. The ejection chamber receives a primary fluid to be ejected. The
secondary dielectric fluid reservoir is in fluid communication with the
diaphragm chamber to supply the secondary dielectric fluid to the
diaphragm chamber. In various exemplary embodiments, the secondary
dielectric fluid is a liquid, a substantially incompressible fluid, and/or
a high performance dielectric fluid having a dielectric constant greater
than 1. |