| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a toner for electrostatic charge image development suppressing abrasion of a photoreceptor even in long-term continuous printing, and to provide a two-component developer using the toner, and an image forming method using the toner or the developer. <P>SOLUTION: The toner comprises toner base particles containing at least a binder resin and a colorant, and an external additive. The external additive contains composite oxide particles (external additive A) comprising titania and silica. The composite oxide particles have a core-shell structure composed of a core portion containing titania and a shell portion containing silica. The content of titania in the composite oxide particles is 75 to 95 wt.%. The binder resin contains a polyester (polyester A) obtained by condensation polymerization of a carboxylic acid component including an isophthalic acid compound and an alcohol component. The two-component developer contains the toner, and the image forming method is carried out by using the toner or the two-component developer. <P>COPYRIGHT: (C)2012,JPO&INPIT |
