| The electrophotographic process, discovered in 1938 by Chester F. Carlson (U.S.A.), serves as the foundation for electrostatic copying. The basic process is illustrated below.
Electrostatic copying uses a light source to transfer data or images onto charged photosensitive material for printing. This process forms an electrostatic image (exposure) on the photosensitive material, which is then made visible using toner.
There are two different light sources that are commonly used for electrophotographic imaging: LED, in which an array of Light-Emitting Diodes serves as the light source; or Laser, in which the light source consists of a semiconductor laser. |
Japan
Page Top