IPA: /ˈkɒp.ɪ.ər/
KK: /ˈkɑːpər/
A device that produces duplicates of documents or images.
The office bought a new copier to handle all the printing needs.
Copier → It is formed from "copy" (from Latin "copia", meaning abundance or plenty, which evolved to mean a reproduction of something) and "-er" (meaning a person who). A copier is a person or device that makes copies or reproductions of documents or images.
Think of someone who makes 'copies' — that's what a 'copier' does, and the '-er' just means a person.