Incremental printing of symbolic information – Ink jet – Fluid or fluid source handling means
Patent
1994-11-29
1997-10-21
Fuller, Benjamin R.
Incremental printing of symbolic information
Ink jet
Fluid or fluid source handling means
B41J 2175
Patent
active
056801645
ABSTRACT:
A refill system for ink cartridges. A refill unit is provided which includes a housing having a foam portion impregnated with ink. The foam portion includes a lower section extending outwardly from a lower panel. Positioned within the panel is an annular channel surrounding the lower section. The refill unit is positioned within an empty ink cartridge modified to include an annular seal member therein. The refill unit is inserted so that the channel receives the seal member. Upon insertion of the refill unit, the lower section of the foam member is engaged against an ink filter within the cartridge. Alternatively, the refill unit may include an enlarged lower section associated with the foam portion, with the annular channel being absent. This unit is used in cartridges which do not have the seal member. The enlarged lower section firmly engages the entire ink filter within the cartridge.
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Dion John
Miller Dana D.
Ortiz Ruben Oscar Pena
Fuller Benjamin R.
Hewlett--Packard Company
Nguyen Judy
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