Abstract: There is provided an image forming system including: a head; a head moving mechanism including a stepping motor; and a controller configured to: in a case where the head is moved to a first position, rotate the stepping motor until the head arrives at a first preliminary position and rotate the stepping motor by a step number S1; in a case where the head is moved to a second position, rotate the stepping motor until the head arrives at a second preliminary position and rotate the stepping motor by a step number S2; and in a case where the head is moved to a third position, rotate the stepping motor until the head arrives at a third preliminary position and rotate the stepping motor by a step number S3.

Abstract: This invention provides an improvement of an apparatus and method of coiling an insulating electric wire in an insulating tube which is supported within a U shaped groove of a supporting frame provided on a stand. The wire is fed into the tube from a wire supporting roll by a wire lead mechanism having a driving friction roll and a vibratory friction roll controlled by a spring.