There are several synonyms for the term "copying machine." One common synonym is "photocopier," which refers to a machine that makes paper copies of documents or images. Another common synonym is "copier," which is a more general term that can refer to any device used to make copies of printed materials. Other synonyms for copying machines include "replicator," "printer," and "duplicator." However, it should be noted that some of these terms may have slightly different connotations or may refer to specific types of copying machines. Ultimately, the choice of synonym depends on the context and the specific type of machine being referred to.