| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a developer achieving counterfeit prevention without unnecessarily wasting a toner in an electrophotographic apparatus and without particularly requiring alteration in the apparatus. <P>SOLUTION: The developer comprising at least a toner to be used in an electrophotographic apparatus includes not only the toner but fine particles essentially comprising a resin, wherein the fine particles have an identification mark formed therein. The toner contains a binder resin, and preferably has a relationship of Tg2<Tg1<(Tg2+10) in the glass transition temperature Tg1 (°C) of the resin as a main component of the fine particles and the glass transition temperature Tg2 (°C) of the binder resin in the toner. The toner contains a binder resin and preferably has a relationship of Tm2<Tm1<(Tm2+10) in the melting point Tm1 (°C) of the resin as the main component of the fine particles and the melting point Tm2 (°C) of the binder resin in the toner. <P>COPYRIGHT: (C)2013,JPO&INPIT |
