xerográfiai

Xerográfiai is the Hungarian term for xerography, a dry copying process in which electrostatically charged powder adheres to a document that has been selectively exposed to light. This method was invented by Chester Carlson in the 1930s and commercialized by Xerox Corporation, which derived its name from the process. The core of xerography involves a photoconductive drum that is first electrostatically charged. When an image of the document to be copied is projected onto the drum, the areas exposed to light become conductive and lose their charge, while the unexposed areas retain their charge. Toner particles, which are fine powders, are then attracted to the charged areas of the drum. This toner image is subsequently transferred to a sheet of paper, which is then heated to fuse the toner, creating a permanent copy. This technology revolutionized document reproduction by offering a faster, cleaner, and more convenient alternative to older wet-process copying methods.