Incremental printing of symbolic information – Ink jet – Fluid or fluid source handling means
Reexamination Certificate
2011-08-09
2011-08-09
Huffman, Julian D (Department: 2853)
Incremental printing of symbolic information
Ink jet
Fluid or fluid source handling means
C347S017000, C347S099000
Reexamination Certificate
active
07992986
ABSTRACT:
A method of reducing intermittent weak or missing (IWM) jet failures in a phase change ink imaging device comprises fluidly connecting a positive pressure source to a print head assembly of a phase change ink imaging device. The print head assembly includes a plurality of ink jets for emitting ink drops onto an ink receiver. The method includes activating the pressure source to deliver a positive pressure pulse to the print head assembly. The pressure pulse is delivered at substantially a purge pressure. The pressure pulse has a pulse duration such that the pressure pulse bulges ink from the plurality of ink jets without emitting ink from the plurality of ink jets.
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Olson Terry Wayne
Snyder Trevor James
Huffman Julian D
Maginot Moore & Beck LLP
Uhlenhake Jason S
Xerox Corporation
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