Ink jet printing mechanism
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Jun 12, 2001
Grant Date -
N/A
app pub date -
Jul 10, 1998
filing date -
Jul 15, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
This patent describes an ink jet printer which ejects drops on demand by activating a permanent magnetic piston located above a nozzle chamber. An activation coil is located adjacent to the magnetic piston and applies a force to the piston sufficient to cause movement of the piston resulting in the ejection of ink. Torsional springs attached to the magnetic piston cause the piston to return to a quiescent condition upon deactivation of the activation coil.
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Family
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Cited Art Landscape
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