typewriter; teletype
Refers to a mechanical or electromechanical device for printing characters, including typewriters and teletype machines. The term is somewhat dated; modern printers are usually called プリンター.
In old offices, there was always a typewriter.
In the telegraph room, the teletype was clattering away.
Compound of 印字 (printing characters) and 機 (machine). The exact historical origin is uncertain, but it follows a common pattern for naming mechanical devices.