发明名称 Toner and production method thereof, image forming apparatus and image forming method, and process cartridge
摘要 The object of the invention is to provide a toner enabling excellent transferring properties, cleanability, and fixability and forming a high-precision image without substantially degraded image quality even after printed on a number of sheets of paper. The invention also provides the toner-production method, an image forming apparatus, an image forming method, and a process cartridge. To this end, the present invention provides a toner which comprises toner-base particles containing a binder resin and a filler, and inorganic fine particles, in which the filler is included in a filler-layer in the vicinity of surfaces of the toner-base particles, the number average particle diameter of the primary particles of the inorganic fine particles is 90 nm to 300 nm, and the average circularity of the toner is 0.95.
申请公布号 US7759036(B2) 申请公布日期 2010.07.20
申请号 US20050573251 申请日期 2005.08.04
申请人 RICOH COMPANY, LTD. 发明人 UTSUMI TOMOKO;MOCHIZUKI SATOSHI;SUGIURA HIDEKI;ICHIKAWA TOMOYUKI;MASUDA MINORU;NAKAYAMA SHINYA
分类号 G03G15/10 主分类号 G03G15/10
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