A typewriter is a mechanical or electromechanical machine for writing in characters similar to those produced by printer's movable type by means of keyboard-operated types striking a ribbon to transfer ink or carbon impressions onto paper. Typically one character is printed on each keypress. The machine prints characters by making ink impressions of type elements similar to the sorts used in movable type letterpress printing. At the end of the nineteenth century the term typewriter was also applied to a person who used such a machine.