printer (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
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)