Method and apparatus for measuring the amount of discharged ink, printing apparatus, and method of measuring the amount of ink discharged in the printing apparatus
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United States of America Patent
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Aug 7, 2001
Grant Date -
N/A
app pub date -
Dec 9, 1997
filing date -
May 30, 1995
priority date (Note) -
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Abstract
A method of instantly measuring the amount of ink discharged from a nozzle of an ink-jet type printhead in a single discharging operation comprises: a density measuring step of measuring the density of an ink dot formed by ink discharged from the printhead onto a glass plate 10, and a determining step of determining the amount of the discharged ink on the basis of the density of the ink dot measured in the measuring step.
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