| 摘要 |
<p>PROBLEM TO BE SOLVED: To obtain a nonmagnetic toner that does not fuse onto a layer regulating member, a developing roll, etc., in a copying machine. SOLUTION: The nonmagnetic toner is used in a nonmagnetic one-component developing method, by which an electrostatic latent image is developed using a developing device with a layer regulating member disposed in press contact with the surface of a developing roll so as to uniformly coat the surface of the roll with the nonmagnetic toner supplied to the roll and the developed image is transferred to a transfer material. The roundness of the nonmagnetic toner is 0.70-0.90. In the particle distribution of the toner, the ratio of the volume average particle diameter to the number average particle diameter is <=1.20. Particles of <=4μm in the number particle size distribution account for <=12%.</p> |
