Incremental printing of symbolic information – Ink jet – Controller
Reexamination Certificate
2011-06-14
2011-06-14
Luu, Matthew (Department: 2861)
Incremental printing of symbolic information
Ink jet
Controller
C347S019000
Reexamination Certificate
active
07959245
ABSTRACT:
An ink level sensing device and associated method. The ink level sensing device includes a near infrared illumination source that emits near infrared light, and a container configured to accommodate a supply of ink containing light absorption material. The device further includes a protruding chamber adjacent to the container. The protruding chamber is configured to accommodate a portion of the supply of ink accommodated by the container. The device also includes a sensor that is configured to receive a signal based on an amount of the light that passes through the protruding chamber. The method includes emitting a light from a near infrared illumination source and directing the light toward a protruding chamber of the ink supply. The method further includes sensing an amount of the light that passes through the protruding chamber in the ink supply.
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Please see attached Search Report for Application No. PCT/US2008/061158, filed on Apr. 22, 2008.
Bhatt Jayprakash C.
Castle Steven T.
Johnson Loren E.
Kinas Erick B.
McConica Charles H.
Goldberg Brian J
Hewlett--Packard Development Company, L.P.
Luu Matthew
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