Detecting a drive bubble formation and collapse

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United States of America Patent

PATENT NO 9409393
APP PUB NO 20140333694A1
SERIAL NO

14372729

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Abstract

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Measuring an inkjet nozzle may include taking at least one impedance measurement after the firing command is sent to detect the presence of a drive bubble and taking another impedance measurement to detect a collapse of the drive bubble.

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Patent Owner(s)

  • HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Martin, Eric T Corvallis, US 111 1592
Maxfield, David Philomath, US 26 186
Van, Brocklin Andrew L Corvallis, US 214 2988

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