The machine used in sending telex message is known as?

The machine used in sending telex message is known as a "teleprinter". It is an electromechanical device that can both send and receive typed messages over a telecommunications system. The teleprinter has a keyboard for typing messages, and a printing mechanism that prints the message onto a roll of paper or a continuous strip of tape. The messages are sent via a wire or radio link to another teleprinter at the receiving end, where the message is printed out. Telex was a popular means of long-distance communication before the advent of email and the internet.