Developer for replenishment and image forming method

Provided is a developer for replenishment capable of forming a high-quality image even upon long-time preservation. The developer for replenishment includes at least a toner and a magnetic carrier, and in the developer for replenishment, 1 part by mass of the magnetic carrier is blended with 2 to 50...

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Bibliographic Details
Main Authors HOTTA YOJIRO, TERAUCHI KAZUO, NAKAMURA KUNIHIKO, TANIGAWA HIROHIDE, BABA YOSHINOBU, FUJIKAWA HIROYUKI, ITAKURA TAKAYUKI
Format Patent
LanguageChinese
English
Published 10.12.2008
Subjects
CINEMATOGRAPHY
ELECTROGRAPHY
ELECTROPHOTOGRAPHY
HOLOGRAPHY
MAGNETOGRAPHY
PHOTOGRAPHY
PHYSICS
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Summary:Provided is a developer for replenishment capable of forming a high-quality image even upon long-time preservation. The developer for replenishment includes at least a toner and a magnetic carrier, and in the developer for replenishment, 1 part by mass of the magnetic carrier is blended with 2 to 50 parts by mass of the toner, and the magnetic carrier contains a ferrite core and a resin component, has a true specific gravity of 2.5 to 4.2 g/cm , has a 50769DB3CEarticle diameter (D50) on a volume basis of 15 to 70 [mu]m, and has an average circularity of 0.850 to 0.950. The average circularity has a variation coefficient of 1.0 to 10.0%.
Bibliography:Application Number: CN200680045724