一、前言在静电复印过程中,显影是一个很重要的环节。静电显影虽然有很多方法,但当前仍以使用双组份的干式显影剂最为普遍。这种显影剂包括墨粉和载体两部分。墨粉可以使静电潜像变成可见图像,而这一过程的实现只有在载体的协助下才能完成,因此裁体的质量直接影响静电复印效果。用作载体的材料有玻璃珠、钢珠和铁粉。用前两者进行显影时,其细线条图像的再现性好,然而边缘效应严重。以铁粉进行显影时就可以避免这个缺点,表现在反差高、底灰少、无 I. Introduction In the process of electrostatic copying, development is a very important part. Electrostatic development Although there are many methods, the use of two-component dry developers is still the most common. This developer contains both toner and carrier. Toner can make the electrostatic latent image into a visible image, and the realization of this process can only be done with the help of the carrier, so the quality of the cutting body directly affect the electrostatic copy effect. Materials used as a carrier are glass beads, steel balls and iron powder. When using the former two to develop, the fine line image reproducibility is good, but the edge effect is serious. Iron powder to develop when you can avoid this shortcoming, manifested in high contrast, low ash, no