发明名称 BLACK TONER FOR DEVELOPING LATENT ELECTROSTATIC IMAGE AND METHOD FOR PRODUCING THE SAME
摘要 <p>A black toner for developing a latent electrostatic image, including: a toner base containing a pigment, a binder resin, a releasing agent, a compound containing fluorine and a compound containing sulfur; and an external additive, wherein the toner contains the external additive on a surface of the toner base, and wherein an amount of the fluorine in the toner base is 200 ppm by mass to 600 ppm by mass as measured by combustion-ion chromatography, and an amount of the sulfur in the toner base is 1,000 ppm by mass to 1,500 ppm by mass as measured by the combustion-ion chromatography.</p>
申请公布号 EP2825916(A1) 申请公布日期 2015.01.21
申请号 EP20130761329 申请日期 2013.02.28
申请人 RICOH COMPANY, LTD. 发明人 YOKOKAWA, KEI;IWAMOTO, YASUAKI;KADOTA, TAKAHIRO
分类号 G03G9/08;G03G9/087;G03G9/09;G03G9/097 主分类号 G03G9/08
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