| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a toner composition having excellent voltage controlling property, high print density, a small toner amount remaining on a roll, a small use amount of the toner and reduced drum contamination, and further exhibiting superior dry rheological characteristics and excellent fixing performance, thereby useful for high-speed printing. <P>SOLUTION: A toner composition comprises: toner particles containing a resin, wax as an optional element, and a colorant as an optional element; and a surface additive which at least partially coats the surfaces of the toner particles. The surface additive contains a mixture of silica surface-treated with hexamethyldisilazane (HMDS), sol-gel silica not surface-treated, and silica surface-treated with polydimethylsiloxane (PDMS). <P>COPYRIGHT: (C)2012,JPO&INPIT |
