 |
Electrophotography
process |
 |
| |
The principles behind the electrophotography process were discovered in the
U.S. in 1938 by C. F. Carson, and served as the basis for electrophotography and
indirect method electrostatic copying.
The composition of the process is shown
in the nearby illustration. After the photoreceptor drum is charged, an electrostatic
latent image of the data to be printed is drawn on the drum by light from a light
source. The electrostatic image on the drum is made visible by toner.
There are
two major light sources that are normally used for electrophotographic imaging |
| |
 LED
: This type of system uses an LED array as the light source.
Laser : This type of system uses a semiconductor laser as the light source. |
| |
| Electro-photographic engine imaging process |
|
|
|
 |
|
|
| Related link |
|
|
|
| Related site |
|
|
|
|
Japan
Page Top