摘要 |
PROBLEM TO BE SOLVED: To avert the contact of a flexible disk and floating magnetic heads in writing of servo signals so as to provide a longer life by prevention of the wear of the magnetic heads and to prevent the flawing of the flexible disk. SOLUTION: The flexible disk 21 is held at a spindle 31 and is rotated at a prescribed rotating speed and in writing of the servo signals by the magnetic heads 6 and 7 of the flexible disk 21 during this rotation, the magnetic heads 6 and 7 are loaded to the state that the writing of the servo signals is possible after the number of revolutions of the flexible disk 21 rises to the regulated high speed.
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