What is electrophotography?

Electrophotography is a type of dry copying method used to create copies of an image by electrostatic charge, similar to static electricity. Chester Carlson invented the technique in 1938 and called it electrophotography. Later, the term turned into xerography, created from the Greek words "Xeros" and "-Graphia", which translates into "dry writing". At the time of Carlson's invention, all the copying processes needed to copy liquid chemicals. Although the original invention lasted long and included manual work on operation, it did not include any liquid substances and was a great progress in technology.

To create an image without liquid chemicals, a machine using electrophotography creates static electricity to charge and transmit an image to an empty sheet of paper. Electrophotography is commonly used in copies and some printers such as LED and laser printers. The copying procedure occurs in less than a minute, but the five steppe process passes every time.

first with bUben, a type of metal cylinder located inside the machine, is charged with electricity. Drum gives different fees depending on the type of copy and the type of image from which the copy is taken. After charging the drum, bright light shines through the image and follows the lights of light and darkness on the charged drum. The charged toner is attracted by particles on the drum and covers the drum, creating a copy of the original picture.

After these first three phases, the process will move to the transmission phase. A piece of paper passes through the drum to capture the picture. Electrostatic energy and a certain amount of pressure cause the transmission of toner to paper and create a detailed copy of the original image. In the last phase, the particles are lost charge and heat, pressure or both are used to ensure that the image is observed. The user then receives a copied image.

The original machines that used electrophotography included a few steps, each of which required,to make the user task to move the process. It took nearly 20 years for a breakthrough that gave the world a fully automated copier. The first automatic copier launched for sale was created by Halid/Xerox, a company that later became the popular brand Xerox and has earned a reputation for the sale of printers and copiers along with other joint office equipment.