A photocopying/printing process in which the image is formed using the electrostatic charge principle. The toner replaces ink and can be dry or liquid. Once formed, the image is sealed by heat. Most page printers currently use this method of printing.

In 1937, Xerography was invented by an American student Chester Carlson. Chester had invented the copying process using a similar electrostatic energy to todays modern photocopy machines. Xerography became commercially available in 1950 by the Xerox Corporation. Xerography comes from the Greek for "dry writing".