Refill unit for simultaneously engaging with, and opening inlet valve to, an ink cartridge
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United States of America Patent
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Feb 17, 2009
Grant Date -
Jul 21, 2005
app pub date -
Dec 20, 2004
filing date -
Jan 21, 2004
priority date (Note) -
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Abstract
. By configuring the refill unit so that it opens the inlet valve on the ink cartridge at the same time that it docks with the cartridge, the risk of dust or other contaminants getting into the cartridge is reduced. This improves the performance and operational life of the printhead nozzles.
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