| 摘要 |
Cyclo-olefin copolymer resin is contained as a binder resin, and concentration of a charge controlling agent on the surface of the toner is not less than 0.1 mg/toner 1 g, and less than 1.0 mg/toner 1 g. Furthermore, the toner is held on a non-magnetic sleeve, an electric field is applied between a photoreceptor and the sleeve, and the toner jumps to an electrostatic latent image on the surface of the photoreceptor. In this way, a toner for electrophotography in which image contamination is prevented and deterioration of image density caused by deterioration of jumping property is prevented by maintaining an appropriate amount of charge even in the non-contact developing method using the toner containing cyclo-olefin copolymer resin as a binder resin, can be provided.
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