An image fixing method comprising the steps of: forming an image by printing powder by contacting a latent electrostatic image on a surface with a free flowing electrostatic developer material comprising particles, said particles including a colored, finely colored printing material divided, from about 0.02% to about 20%, based on the weight of said printing material, of at least one hydrophobic, solid and stable metal salt of a fatty acid disposed on the outer surfaces of said particles, thereby said finely divided printing material is attracted to said surface and remains thereon, according to said latent electrostatic image. (Machine-translation by Google Translate, not legally binding)
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