发明名称 Electrophotographic black toner, electrophotographic developer and image forming method
摘要 <p>An electrophotographic black toner comprising a colorant and a binder resin, wherein the toner has a metal oxide as the colorant of 20 % by weight or less, said metal oxide having magnetisation of 40 emu/g or smaller, and said toner has color coordinates such that L* has a value of 10 to 25, a* has a value of -3.0 to 3.0, and b* has a value of -3.0 to 3.0 as determined by a fixed image formed with the toner, as well as an electrophotographic developer and an image forming method using said electrophotographic black toner are provided. According to the present invention, the electrophotographic black toner having a high volume-specific resistance value, achieving a sufficient degree of blackness, less likely to cause high background and providing a high quality image can be obtained. &lt;IMAGE&gt;</p>
申请公布号 EP1205811(A2) 申请公布日期 2002.05.15
申请号 EP20010120634 申请日期 2001.08.30
申请人 FUJI XEROX CO., LTD. 发明人 YOSHINO, SUSUMU;TAGUCHI, TETSUYA;YOSHIHARA, KOUTAROU
分类号 G03G9/09;G03G9/097;(IPC1-7):G03G9/083 主分类号 G03G9/09
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