SERVO WRITER AND SERVO WRITE METHOD

PROBLEM TO BE SOLVED: To provide a servo writer and a servo write method, capable of writing a servo signal maintained with highly accurate linearity in a tape-like recording medium. SOLUTION: The servo writer 1 comprises a feeding part 7 for feeding the tape-like recording medium; a tension control part 4 for controlling the tension of the tape-like recording medium; a signal writing part 3 for writing a servo signal in the tape-like recording medium; a take-up part 8 for taking up the tape-like recording medium in which the servo signal is written by the signal writing part 3; and a 1st guide rollers 5 and a 2nd guide rollers 6 which are prepared between the tension control part 4 and the signal writing part 3 at a predetermined interval and guides the running of the tape-like recording medium. It is characterized in that the tension per a unit cross-sectional area of the tape-like recording medium stretched between the 1st guide roller 5 and the 2nd guide roller 6 is controlled to be ≥2 x 106N/m2and ≤6 x 106N/m2. COPYRIGHT: (C)2005,JPO&NCIPI