Abstract
In the reversal development process, the fundamental characteristics of insulating magnetic toners were investigated for a diode laser printer with a organic photoreceptor.
In the application of the contact development, the method of carrying the toners towards the photoreceptor is an important factor to obtain good image quality. And the toners have essentially positive and/or negative charge from inter particle triboelectric charging. In the development process, however, the toners vary in electrostatic charge from induction charging to triboelectric charging due to the existence of charge control agent of toners. These results were confirmed by the experiments with ferrite carriers being added to the toners.
We found that the similar two-components development process using the triboelectric magnetic toners and the ferrite carriers could realize good image quality and high print durability. It was applied practically to the diode laser printer and has succeeded as a new two-components developing method.
