What is Copier?

A copier (also known as a photocopier or copy machine) is a machine that makes paper copies of documents and other visual images quickly and cheaply. Most modern copiers use a technology called xerography, a dry printing process that uses electrostatic charges on a photoreceptor to attract and then transfer toner particles onto paper. Copiers are commonly used in offices, schools, libraries, and other environments where documents need to be reproduced.