xerográfiával

Xerográfiával is a Hungarian term that translates to "xerography" in English. Xerography is a dry photocopying process that uses electrostatic charges to produce images. Developed by Chester Carlson in the 1930s, the technology was first commercialized by the Haloid Company in 1959 with the introduction of the Xerox 914 copier. This innovation revolutionized document reproduction by offering a faster, cleaner, and more accessible method than existing wet-based or carbon paper techniques.

The fundamental principle of xerography involves several key steps. First, a photoconductive drum is given a uniform positive electrostatic charge. Next, a light image of the original document is projected onto the drum. Areas of the drum exposed to light lose their charge, while the areas corresponding to the dark image retain their charge. A fine, electrostatically charged powder called toner is then cascaded over the drum. The toner particles adhere to the charged areas of the drum, forming a toner image. This image is then transferred to a sheet of paper, which is also electrostatically charged. Finally, the toner is fused to the paper using heat and pressure, creating a permanent copy of the original document. This process is the basis for most modern photocopiers and laser printers.