noun
teletype; teleprinter
A communication device that sends and receives typed messages over a network. Now largely historical, but the term may still appear in technical or retro contexts.
昔の新聞社ではテレタイプでニュースを受信していた。
In old newspaper offices, they received news via teletype.
ファックス transmits scanned documents over phone lines, while テレタイプ sends typed text messages, often using a keyboard and printer.
Borrowed from English 'teletype', a trademark that became a generic term for teleprinters.