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The relationship between toner charging and properties of the development roller for minimizing degradation of imaging density

机译:墨粉充电和显影辊性能之间的关系,以最大程度地降低成像密度的下降

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Optimum toner charging and mass transfer are important factors to produce fine images with high quality in electrophotography. Also the uniformity of the image is one of the most important properties to produce high quality printing. The charging mechanism of toners and the mechanism of toner development in the electrophotographic monocomponent laser beam printer system was studied in this article. Development rollers with various surface properties were prepared. The dynamics of toner charging were investigated by using a current measurement technique. A current was observed to flow through each system part, i.e., development roller, blade, and supply roller, during the roller rotation with toner attached on its surface. Currents and toner charge to mass ratio and the uniformity of printing image were measured for each roller. It was found that the current had a strong relationship to the roller surface properties. It was also shown that the relationship between toner charge and roller surface properties is related to the uniformity of printing image. Finally the mechanism of toner development is discussed, and the design of a high quality development roller is proposed.
机译:最佳的调色剂充电和传质是在电子照相中产生高质量高质量图像的重要因素。同样,图像的均匀性也是产生高质量印刷的最重要特性之一。本文研究了电子照相单组分激光打印机系统中的调色剂带电机理和调色剂显影机理。准备了具有各种表面特性的显影辊。通过使用电流测量技术研究了调色剂充电的动力学。在辊旋转且调色剂附着在其表面上的过程中,观察到电流流过每个系统部件,即显影辊,刮板和供应辊。测量每个辊的电流和调色剂的电荷质量比和打印图像的均匀性。已经发现,电流与辊表面性能有很强的关系。还表明,调色剂电荷和辊表面性能之间的关系与印刷图像的均匀性有关。最后讨论了调色剂显影的机理,并提出了一种高质量显影辊的设计。

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