| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve reproducibility of thin lines in a developed image obtained by using a premix agent. <P>SOLUTION: A toner to be used for a premix agent, which is delivered in a preliminarily mixed state of a toner and a carrier, includes a binder resin comprising at least a crystalline polyester resin and an amorphous polyester resin. In IR absorption spectra of these resins obtained by IR spectroscopy (a KBr tablet method) using a Fourier transformation IR spectroscopy analyzer, a value obtained by dividing a height W at a third falling peak point of the crystalline polyester resin by a height R of the maximum rising peak point of the amorphous polyester resin is within a range from 0.045 to 0.850. <P>COPYRIGHT: (C)2012,JPO&INPIT |
