Disposition or mounting of heads; or head supports; relative to record carriers; ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
maintaining desired contact or spacing by direct interaction of forces generated between heads or supports thereof and record carriers or supports thereof, e.g. attraction-repulsion interactions
