Incremental printing of symbolic information – Ink jet – Fluid or fluid source handling means
Reexamination Certificate
2006-05-09
2006-05-09
Feggins, K. (Department: 2861)
Incremental printing of symbolic information
Ink jet
Fluid or fluid source handling means
Reexamination Certificate
active
07040743
ABSTRACT:
Apparatus and methods for regulating back pressure within an ink reservoir for use in printing systems. Back pressure is regulated using a column of liquid within a trap contained in the ink reservoir. The trap is vented on one side to ambient pressure and to the other side within the body of the ink reservoir.
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Acosta Miguel A.
Caro William
Ortiz Lester
Feggins K.
Hewlett--Packard Development Company, L.P.
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