Invention Grant
US08735041B2 Method for producing resin-coated carrier, resin-coated carrier, two-component developer, developing device, image forming apparatus and image forming method
有权
树脂涂布载体,树脂涂布载体,双组分显影剂,显影装置,图像形成装置和成像方法的制备方法
- Patent Title: Method for producing resin-coated carrier, resin-coated carrier, two-component developer, developing device, image forming apparatus and image forming method
- Patent Title (中): 树脂涂布载体,树脂涂布载体,双组分显影剂,显影装置,图像形成装置和成像方法的制备方法
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Application No.: US12730583Application Date: 2010-03-24
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Publication No.: US08735041B2Publication Date: 2014-05-27
- Inventor: Takanori Kamoto , Takayuki Yamanaka , Osamu Wada , Tadashi Iwamatsu , Nobuyuki Yoshioka
- Applicant: Takanori Kamoto , Takayuki Yamanaka , Osamu Wada , Tadashi Iwamatsu , Nobuyuki Yoshioka
- Applicant Address: JP Osaka
- Assignee: Sharp Kabushiki Kaisha
- Current Assignee: Sharp Kabushiki Kaisha
- Current Assignee Address: JP Osaka
- Agency: Nixon & Vanderhye P.C.
- Priority: JPP2009-075234 20090325; JPP2010-027023 20100209
- Main IPC: G03G9/10
- IPC: G03G9/10

Abstract:
A method for producing a low density resin-coated carrier having a small resin amount to a carrier core material and having a uniform resin coating layer formed on the carrier core material is provided. A resin-coated carrier has a carrier core material and a resin coating layer formed on the surface of the carrier core material. The carrier core material has pores and an apparent density of 1.6 g/cm3 to 2.0 g/cm3 and a remanent magnetization of 10 emu/g of less. The resin coating layer is formed by a dry process of adhering resin particles to a surface of the carrier core material and applying heat and impact force to the resin particles. A volume average particle size of the resin particles is less than 1 μm. A two-component developer containing the resin-coated carrier is charged in a developing device in an image forming apparatus, and an image is formed.
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