what is xerography?
Xerography is a dry photocopying process that uses electrostatic charges to transfer toner (a dry powder) onto paper, which is then fused using heat. It was invented by Chester Carlson in 1938 and later developed by Xerox Corporation, revolutionizing document reproduction.
Xerography is the basis for modern photocopiers, laser printers, and digital printing technologies.
How It Works:
Charging – A photoconductive drum or belt is given a static electric charge.
Exposure – A light (such as a laser or LED) creates an image by neutralizing charge in the exposed areas, leaving a pattern.
Developing – Toner particles, which are electrically charged, stick to the charged areas.
Transfer – The toner image is transferred to a sheet of paper.
Fusing – Heat and pressure fuse the toner onto the paper, creating a permanent image.