| 摘要 |
PURPOSE:To enhance image density and image quality by using a toner constituents composed of a polarity controller, and other constituents having reverse polarities to said controller. CONSTITUTION:The toner contg. the polarity controller contains the other constituents having the polarity reverse to that of said controller. As this controller, those so far known as the polarity controller are used, and the constituents excluding said controller vary according to circumstances, and they may include a binder resin, a magnetic material, and a pigment or dye, and additives, such as an electrostatic charge controller and fine silica powder, thus permitting the obtained one-component type magnetic toner to be unaffected by changes of circumstances, and to have high image density and high copy image quality. |
