A system (10) for in-line treatment of thread (20) for use with a thread consuming device (15) is provided. The system comprises a treatment unit (100) comprising at least one discharge device (150) being configured to dispense one or more coating substances onto the at least one thread (20) when activated; and a drive unit (32) being configured to move said at least one discharge device (150) between an idle position (42) and an operational position (41) being arranged along an axis of movement (A).
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