ELECTROSTATIC CHARGE IMAGE DEVELOPING TONER, ELECTROSTATIC CHARGE IMAGE DEVELOPER, TONER CARTRIDGE, PROCESS CARTRIDGE, IMAGE FORMING APPARATUS, AND IMAGE FORMING METHOD

An electrostatic charge image developing toner includes: toner particles; and an external additive. The external additive contains sol-gel silica having a volume average particle diameter of from about 70 nm to about 400 nm and an average circularity of from about 0.5 to about 0.9, and a dielectric...

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Main Authors YOSHIKAWA HIDEAKI, TAKEUCHI SAKAE, ZENITANI YUKA, KAWASHIMA SHINICHIRO, KADOKURA YASUO, TAKAHASHI SAKON, OKUNO HIROYOSHI, NOZAKI SHUNSUKE
Format Patent
LanguageEnglish
Published 14.03.2013
Subjects
CINEMATOGRAPHY
ELECTROGRAPHY
ELECTROPHOTOGRAPHY
HOLOGRAPHY
MAGNETOGRAPHY
PHOTOGRAPHY
PHYSICS
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Summary:An electrostatic charge image developing toner includes: toner particles; and an external additive. The external additive contains sol-gel silica having a volume average particle diameter of from about 70 nm to about 400 nm and an average circularity of from about 0.5 to about 0.9, and a dielectric loss factor of the toner is from about 5×10−3 to about 30×10−3 when the toner is kept for 24 hours under the environment of a temperature of 28° C. and a humidity of 85%.
Bibliography:Application Number: US201213352821