Description

It attaches the toner to the electrostatic latent image formed in the exposure stage to generate the visual phenomenon.
Moreover, it adjusts the copy concentration to a darker or weaker shade by controlling the amount of toner that sticks to the electrostatic latent image formed on the surface of the drum.
This control is adjusted by the bias voltage applied to the developing roller on which the toner is mounted. 

Materials and Characterisrics