发明名称 Electrophotographic developer and image-forming method using the developer
摘要 The present invention provides an electrophotographic developer which reduces toner contamination on the surface of a developer carrier even when a development effective range is narrowed and which is stabilized in an image quality in every environmental situation and has a long life and a low cost and an image-forming method using the same. In the present invention, used for the electrostatically charged-image holder described above having a radius of curvature of 18 mm or less in a development effective range is the electrophotographic developer which is a two-component developer comprising a toner comprising at least a binder and a colorant and a carrier which is coated with a resin and has a weight average particle diameter of 40 to 100 mum, wherein the above toner has a volume average particle diameter of 8 to 11.5 mum, and the toner particles having a diameter of 6.35 mum or less account for 20 number % or less.
申请公布号 US2002119387(A1) 申请公布日期 2002.08.29
申请号 US20010036184 申请日期 2001.12.26
申请人 SHARP KABUSHIKI KAISHA 发明人 ISHIDA TOSHIHISA;IMAFUKU TATSUO;SAITO JUNICHI;BITO TAKAHIRO
分类号 G03G9/08;G03G9/107;G03G9/113;G03G13/09;(IPC1-7):G03G9/08;G03G13/16 主分类号 G03G9/08
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