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nature : dye in electrostatic copying process, and the photosensitive drum with the opposite charge can be charged on the photosensitive drum latent image by adsorption and autoradiography, the dye can be charged in charge of regulating compounds known as color using powder charge regulator. Divided into positive charge regulator negative charge regulator. Using colored dye generally charge regulator, color dye generally used colorless charge regulator. Color negative charge regulator of azo dyes and metal complexing copper phthalocyanine dye more sulfonamide; Colored positive charge regulator for aniline black, triphenylmethane free base or its salts; Colorless negative charge regulator is salicylic acid complex for the parent metal complexes; Colorless charge regulator is compared with salts, organic boron Synthetic or biphenyl derivatives.
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