| 摘要 |
PURPOSE:To solve such problems for a conventional developer comprising toner and carrier that no improvement is performed in charge-rising property of the toner, significant scattering of the toner is caused in a copying machine in a long life and that the copy picture images in nonimage line part have much fogging in the ground. CONSTITUTION:The dry developer comprising toner and carrier consists of 100 pts.wt. of nonmagnetic toner and 0.1-10 pts.wt. of magnetic toner containing 5-80wt.% magnetic powder. The nonmagnetic toner and magnetic toner are electrified to opposite polarities to each other. |
