For example, in color printing with blues and blacks predominating, a cool white sheet tends to brighten the colors. But in color printing with reds, oranges, and yellows predominating, a neutral or warm white sheet tends to make the colors appear clearer and stronger. The top side of the paper is called the felt side. As the water drains through the wire during manufacture, it carries fibers, fillers, and other chemicals with it, depositing more of them on the wire side than on the felt side of the paper. This can result in the wire and felt sides having slightly different textures.
Electric charges create the image on an electrophotographic surface that works as a plate.
This surface is cleared after each copy is made and used over again for the next copy.