| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a toner suitable for the recycle system for a two- component developer which can prevent the fog in a non-picture part caused by repeated copying on a great number of paper sheets which is easily caused in an image forming device using a recycling system and can prevent contamination on the surface of a photoreceptor such as an OPC(Organic PhotoConductor) or the like. SOLUTION: The toner for a recycling system contains an external additive containing at least calcium carbonate of a calcite crystal state or porous calcium phosphate on the surfaces of toner particles essentially comprising a binder resin and a coloring agent.</p> |
