The Free On-line Dictionary of Computing (30 December 2018):

sprocket feed
pin feed
tractor feed

    (Or "tractor feed", "pin feed") A method some
   printers use to move paper by rotating wheels with pins or
   studs (tractors) that engage holes along the sides of the
   (usually fanfold) paper.  A sprocket feed printer does not
   slip unless the paper jams, but cannot feed standard typing
   paper or work with a sheet feeder like friction feed.

   Some paper for sprocket feed printers has the edge strips with
   the holes in detachable from the rest of the paper.  These
   strips are known as chad (and other names).

   (1997-06-29)