Printer toner powder,  is a powdered substance used in laser printers to form images on paper. Its main components are:
1. Resin: the main imaging substance, which constitutes the main component of carbon powder;
2. Carbon black: the main imaging substance, which has the function of adjusting the color depth, which is usually called blackness;
3. Magnetic iron oxide: under the magnetic attraction of the magnetic roller, it can carry carbon powder and adsorb it on the magnetic roller;

4. Charge control particles: control the charge of carbon powder to make the carbon powder uniformly charged;
5. Lubricant (silicon particles): plays a lubricating role and controls friction charge at the same time;
6. Hot melt plastic (plasticizer): controls the melting point of carbon powder, carries carbon powder to penetrate into the paper fiber in a molten state, and forms a final solid image.
In addition, color toner will also add pigments of other colors on the basis of the above ingredients.