Ink print head with low flow resistance central refilling
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United States of America Patent
Stats
-
Aug 19, 2003
Grant Date -
Sep 5, 2002
app pub date -
Jan 3, 2002
filing date -
Jan 12, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An ink print head has an ink container for storing fluid, a chip installed at a bottom of the ink container having a central slot for passing fluid, and a dry film formed on the chip having a plurality of ink chambers. The ink print head also has a nozzle plate formed below the dry film, a middle portion of the nozzle plate protruding above the nozzle plate so as to form a central refill chamber, a plurality of nozzles corresponding to the ink chambers of the dry film, and a plurality of heaters set on the chip for heating fluid inside the ink chambers so that the fluid can be ejected from the nozzles of the nozzle plate. The fluid inside the ink container will flow through the central slot into the central refill chamber and then into the ink chambers.
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