Incremental printing of symbolic information – Ink jet – Fluid or fluid source handling means
Reexamination Certificate
2008-04-04
2011-12-06
Vo, Anh T. N. (Department: 2861)
Incremental printing of symbolic information
Ink jet
Fluid or fluid source handling means
C347S085000, C347S248000, C347S089000
Reexamination Certificate
active
08070278
ABSTRACT:
A method of priming one or more printhead integrated circuits, the method comprising the steps of:(i) providing a printhead assembly comprising:an ink distribution manifold having an ink inlet and an ink outlet;one or more printhead integrated circuits mounted on the manifold, each printhead integrated circuit comprising a plurality of nozzles;an upstream ink line connected to the ink inlet; anda downstream ink line connected to the ink outlet, wherein at least part of the printhead assembly contains ink bubbles;(ii) providing an ink chamber in fluid communication with the ink inlet via the upstream ink line;(iii) priming the printhead integrated circuits by drawing ink from the ink chamber, through the manifold and into the downstream ink line using a pump;(iv) bursting ink bubbles in the downstream ink line;(v) sensing for ink downstream of a bubble-bursting point in the downstream ink line; and(v) shutting off the pump when the ink is sensed.
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Low David Jeremy
Silverbrook Kia
Silverbrook Research Pty Ltd
Vo Anh T. N.
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