Xerography

Aware of the constant need for copies of patent specifications, a lawyer and physicist strove to invent a way of copying paper. He devised a method using electrostatic forces to attract carbon black to paper was devised, and because nothing moist is needed, he dubbed it xerography (Greek for "dry writing").
 Chester Floyd Carlson United States 1938 Xerography

Aware of the constant need for copies of patent specifications, a lawyer and physicist strove to invent a way of copying paper. He devised a method using electrostatic forces to attract carbon black to paper was devised, and because nothing moist is needed, he dubbed it xerography (Greek for "dry writing").