| 摘要 |
<p>PROBLEM TO BE SOLVED: To suppress fogging due to decrease in the surface potential of a photoreceptor when a positive charge toner touches the photoreceptor to move electrons from the toner to be charged into positive to the photoreceptor. SOLUTION: Electron withdrawing groups are introduced to a one component positive charge toner binder so as to suppress electrons released from the toner as much as possible and to prevent decrease in the surface potential of a photoreceptor when an electrostatic latent image developer is charged by triboelectrification with the photoreceptor. Thus, an image with little fog can be obtd. Further, the electron withdrawing groups are included by between >=0.3mol and <=1.0mol per 1mol of the toner binder.</p> |
