a facsimile machine or a " fax" is

a facsimile machine or a " fax" is for sending and receiving copies of documents, pictures, diagrams and other office papers. it is transmitted by normal telephone lines to another fax machine. some faxes are exactly like letters, some are printed on special fax forms rather like memos, and others are simply handwritten messages. documents are sent much quicker and moreb comvenient than being posting.