CORE MATERIAL OF CARRIER FOR ELECTROPHOTOGRAPHIC DEVELOPER AND METHOD FOR MANUFACTURING THE CORE MATERIAL, CARRIER AND METHOD FOR MANUFACTURING THE CARRIER, AND ELECTROPHOTOGRAPHIC DEVELOPER USING THE CARRIER
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United States of America Patent
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Issued Date -
Jan 20, 2011
app pub date -
Feb 27, 2009
filing date -
Mar 31, 2008
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Objects of the present invention are to provide a carrier core material for an electrophotographic developer having a true spherical shape and excellent strength, and a controllable true density and/or apparent density, and a method for manufacturing the carrier core material, a carrier and a method for manufacturing the carrier, and an electrophotographic developer using the carrier. In order to achieve the objects, there are employed a carrier core material for an electrophotographic developer, containing 3 to 100% by number of hollow particles having an iron content of 36 to 78% by weight, and a carrier for an electrophotographic developer, obtained by coating a resin on a surface of the carrier core material, and methods for manufacturing these, and an electrophotographic developer using the carrier.
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