Ink refill unit with keyed connection ink cartridge
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United States of America Patent
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-
Jun 24, 2008
Grant Date -
Jul 21, 2005
app pub date -
Dec 20, 2004
filing date -
Jan 21, 2004
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An ink refill unit is provided for replenishing an ink cartridge in an inkjet printer. The ink cartridge has an interface for engaging the ink refill unit and the ink refill unit has a body containing a quantity of ink, and an ink outlet for engaging an ink inlet in the interface. A feature of the ink refill unit and a feature of the interface form a pair of complementary features that have a keyed connection with each other when the ink refill unit engages the interface.
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