Method for inspecting quality of core material for electrophotographic ferrite carrier
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United States of America Patent
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Feb 1, 2011
Grant Date -
Oct 2, 2008
app pub date -
Mar 28, 2008
filing date -
Mar 30, 2007
priority date (Note) -
Expired
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Abstract
An object of the present invention is to provide a quality inspection method for obtaining a specifying factor which can more reliably indicate powder characteristics of a core material for an electrophotographic ferrite carrier. The method includes measuring an impedance of the core material for the electrophotographic ferrite carrier to obtain a Cole-Cole plot in which a real number impedance is arranged in an X-axis and an imaginary number impedance is arranged in a Y-axis, and evaluating characteristics of particles of the core material for the electrophotographic ferrite carrier using the Cole-Cole plot.
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