System for compensating for drop volume variation during three-dimensional printing of an object
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United States of America Patent
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Sep 20, 2016
Grant Date -
Dec 10, 2015
app pub date -
Jun 6, 2014
filing date -
Jun 6, 2014
priority date (Note) -
In Force
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Abstract
A printer compensates for variations in ejected material drop volumes occurring during production of the layers for the formation of an object in a three-dimensional printer. The printer includes an optical sensor that generates topographical and measurement data of each layer of the object after each layer is printed. Differences in height between columns of material being formed by the ejectors in the printhead are identified with reference to the data produced by the sensor and raster data used to operate the printhead are modified adjust the formation of a next layer in the object.
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