Incremental printing of symbolic information – Ink jet – Fluid or fluid source handling means
Reexamination Certificate
2011-04-12
2011-04-12
Lepisto, Ryan (Department: 2883)
Incremental printing of symbolic information
Ink jet
Fluid or fluid source handling means
C347S091000, C347S092000, C347S094000, C347S095000
Reexamination Certificate
active
07922312
ABSTRACT:
In one embodiment an ink pen for an inkjet printer includes: an ink filter chamber; a pressure regulator chamber downstream from the ink filter chamber along a path of ink flow through the pen; a pressure regulator in the pressure regulator chamber; a filter in the ink filter chamber; an inlet to the ink filter chamber upstream from the filter along the ink flow path; and an outlet from the ink filter chamber to the pressure regulator chamber downstream from the filter along the ink flow path such that ink flowing from the inlet to the outlet passes through the filter. In another embodiment a method implemented in an ink delivery system for an inkjet ink pen includes: chambering ink in the pen; filtering the chambered ink; and then regulating the pressure of filtered ink.
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Supplementary European Search Report dated Apr. 27, 2010, Application No. EP 08 746 557.1.
Please see attached European Search Report for Application No. PCT/US2008/061161, filed on Apr. 22, 2008.
Devries Mark A.
Ender Ronald J.
Haines Paul Mark
Malik Craig L.
Anderson Guy G
Hewlett--Packard Development Company, L.P.
Lepisto Ryan
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