Atari 820 - FujiNetWIFI/fujinet-firmware GitHub Wiki

The Atari 820 is a printer made by Atari from 1979 until 1982. It was Atari's first released printer, and has styling to match the Atari 810 disk drive, very closely. Atari 820

It plugs directly into the SIO port, and has a pass-through connector for daisy-chaining other peripherals.

It uses a standard adding-machine roll paper 3 3/4" in diameter, which allows for 40 columns of text in normal orientation.

There is a sideways mode, which prints each character flipped 90 degrees on its side relative to the top of the paper.

Atari 820 sample Atari 820 Sideways Text