Patent ID: 7990649

Claim:
A method for setting a wrap angle of a read/write head, comprising: supplying a data storage device comprising a roller disposed adjacent a read head/write head comprising a sloping upper surface, a servo element, and a plurality of servo band detection enabled read elements (“Enabled Read Elements”), wherein the servo element and each of the plurality of Enabled Read Elements can detect a servo band, moving a sequential information storage medium across said roller and said sloping upper surface at an initial wrap angle, wherein said sequential information storage medium comprises a servo band encoded therein and a longitudinal axis, wherein the longitudinal axis and the sloping upper surface define said initial wrap angle; incrementally adjusting said initial wrap angle by incrementally moving said roller until said servo band is not detected by the servo band or by any of the plurality of Enabled Read Elements; establishing an iteration number (N), wherein (N) is greater than or equal to 2; wherein said incrementally adjusting step comprises adjusting an (i)th wrap angle to form an (i+1)th wrap angle, wherein (i) is greater than or equal to 1 and less than or equal to (N); incrementally adjusting, for each value of (i) an (i)th wrap angle until said servo band is not detected by the servo band or by any of the plurality of Enabled Read Elements; saving, for each value of (i), an (i)th nominal wrap angle; and calculating an average nominal wrap angle; establishing a wrap angle offset; setting an operating wrap angle equal to said average nominal wrap angle plus said wrap angle offset.