Webster's Revised Unabridged Dictionary · 1913

Xerox

Xerox , noun

[From a brand name of the Xerox corporation.]

A copying machine which copies graphic matter by the action of light on an electrically charged photoconductive insulating surface in which the latent image is developed with a resinous powder.
2.
A copy made by the xerox process.

xerox , transitive verb

To copy a printed document on a xerographic device.