Refillable ink cartridge with ink bypass channel for refilling
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United States of America Patent
Stats
-
Jul 5, 2011
Grant Date -
Jun 3, 2010
app pub date -
Jan 31, 2010
filing date -
Jan 21, 2004
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A refillable ink cartridge has an ink port for both supplying ink to a printhead and refilling the cartridge. An ink reservoir has ink absorbent material disposed therein with a main fluid channel extending between the ink port and the ink absorbent material. A bypass fluid channel with a control valve extends between the main fluid channel the said absorbent material. The bypass control valve is configured to allow ink to flow through the bypass fluid channel only when refilling the ink reservoir via the ink port.
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