Nozzle condition evaluation

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United States of America Patent

PATENT NO 9776394
SERIAL NO

15306028

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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The present subject matter relates to evaluating nozzle condition of a plurality of nozzles. In one example, drive bubble detect (DBD) test results for a set of nozzles from among the plurality of nozzles are stored by a print head in a test result register, where the test result register is provided onto the print head. Further, status bits of a result-ready register provided in the print head are set to a predetermined value by the print head responsive to storing of the DBD test results in the test result register. Further, based on the setting, the DBD test results are obtained by a control unit, from the test result register, for evaluating the nozzle condition.

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Patent Owner(s)

  • HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Anderson, Daryl E Corvallis, US 185 1167
Martin, Eric T Corvallis, US 111 1592

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