Abstract: A tape storage device includes a head assembly having plural access head elements to access data on respective data tracks on a storage tape. A controller, responsive to information contained in at least one of the data tracks, is provided to individually adjust a lateral position of at least one of the access head elements independently of at least one other head element.

Abstract: In an apparatus for reading a data storage medium, a control unit controls a first driving unit so as to enable the first driving unit to drive a carrier frame loaded with the data storage medium thereon to move back and forth between first and second limit positions along a first direction, receives optically detectable information read by an optical detecting unit from the data storage medium, and activates a second driving unit to move the optical detecting unit by a predetermined distance along a second direction transverse to the first direction upon detection that the carrier frame has been moved by the first driving unit from one of the first and second limit positions to the other one of the first and second limit positions.

Abstract: In an apparatus for reading a data storage medium, a control unit controls a first driving unit so as to enable the first driving unit to drive a carrier frame loaded with the data storage medium thereon to move back and forth between first and second limit positions along a first direction, receives optically detectable information read by an optical detecting unit from the data storage medium, and activates a second driving unit to move the optical detecting unit by a predetermined distance along a second direction transverse to the first direction upon detection that the carrier frame has been moved by the first driving unit from one of the first and second limit positions to the other one of the first and second limit positions.