Ink cartridges and ink supply systems

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

2008-12-01

2011-11-08

Tran, Huan (Department: 2861)

Incremental printing of symbolic information

Ink jet

Fluid or fluid source handling means

Reexamination Certificate

active

08052260

ABSTRACT:
An ink cartridge has a case which has an ink chamber, a first wall facing an exterior of the case, and a translucent portion at the first wall and having an inner space formed therein continuously with the ink chamber. The ink cartridge has a first movable member positioned in the case, and a second movable member coupled to the case. The first movable member moves relative to an amount of ink stored in the ink chamber, and has a signal blocking portion positioned in the inner space. The second movable member has a second wall that faces the first wall and that has an opening therethrough. The second movable member moves between a first position and a second position. The second wall is closer to the first wall when the second movable member is in the second position than when the second movable member is in the first position.

REFERENCES:
patent: 4350909 (1982-09-01), Yamada
patent: 4716290 (1987-12-01), Ogawa
patent: 4716291 (1987-12-01), Sakamoto et al.
patent: 2005/0195225 (2005-09-01), Takagi et al.
patent: 2005-254734 (2005-09-01), None

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