Incremental printing of symbolic information – Ink jet – Ejector mechanism
Patent
1996-07-30
1999-12-21
Fuller, Benjamin R.
Incremental printing of symbolic information
Ink jet
Ejector mechanism
347 65, B41J 205
Patent
active
060039779
ABSTRACT:
The configuration of an ink inlet through which flows ink into a chamber for expulsion from the chamber by a thermal process is such that a vapor bubble generated by the thermal process to eject ink from the chamber expands to simultaneously occlude the inlet, thereby to separate the ink within the chamber from ink within a channel that is in fluid communication with the inlet. The separation eliminates a liquid path between the chamber and the channel so that substantially no ink is blown back into the channel as the bubble expands, thereby improving the thermal efficiency of the process.
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James P. Shields, "Thermal Inkjet Review, or How Do Dots Get from the Pen to the Page?" in Hewlett-Packard Journal, p. 67 (Aug. 1992).
Thomas David
Trueba Kenneth E.
Waller David J.
Weber Timothy L.
Fuller Benjamin R.
Hewlett--Packard Company
Johnson, Jr. Sydney O.
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