Sometimes referred to as continuous feed paper or tractor feed paper, fanfold paper is specially manufactured paper for use with a continuous feed printer. Its pages are attached by perforated folds and separated by tearing after the pages have been printed.
Tip: The discarded paper edges were referred to as snaf.
Fanfold paper is used with old dot matrix printers and is still being used today. The picture is an example of a Dot matrix printer with fanfolding paper.