Ink cartridges and ink supply systems

Details Ink cartridges and ink supply systems Ink cartridges and ink supply systems

2011-08-16

2011-08-16

Tran, Huan H (Department: 2861)

Incremental printing of symbolic information

Ink jet

Fluid or fluid source handling means

C347S085000

Reexamination Certificate

active

07997705

ABSTRACT:
An ink cartridge includes a case having an ink chamber and a wall, an air communication portion having a first opening, and an ink supply portion having a second opening. The air communication portion includes a first lid member that moves between a first position not covering the first opening, and a second position covering the first opening, and a first biasing member that applies a first biasing force to the first lid member. The ink supply portion includes a second lid member that moves between a third position not covering the second opening and a fourth position covering the second opening, and a second biasing member that applies a second biasing force to the second lid member. When the first lid member is in the second position and the second lid member is in the fourth position, the first biasing force is less than the second biasing force.

REFERENCES:
patent: 7562972 (2009-07-01), Hattori et al.
patent: 2007/0070147 (2007-03-01), Hattori et al.
patent: 2007-144808 (2007-06-01), None

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