| 摘要 |
PURPOSE:To enable one-component developing method without decreasing the hue of the colorant and showing clear and good color reproducibility by incorporating a magnetic fine powder of N5-N6 degree and a colorant into a binder resin. CONSTITUTION:The binder resin contains a colorant and magnetic fine particles represented by N5-N6 by the expression of colors for three attributes specified by JIS 8721. The magnetic fine particles are preferably spherical iron particles obtd. by decomposition and reduction of Fe(CO)5 as the source material. It is preferable that the distribution of toner particle size by a coal tar counter shows 10wt.% of particles over 20.2mum particle size. |
