摘要 |
PROBLEM TO BE SOLVED: To provide a cutter of a magnetic recording medium and its manufacturing method, capable of reducing a variation in a cutting width, by restraining complication and an enlargement of a device structure. SOLUTION: A rotational driving part is arranged in guide rollers 15A to 15C arranged just before and just behind at least a cutting part 16 among a plurality of guide rollers for guiding travel of the magnetic recording medium. The respective guide rollers 15A to 15C are respectively, individually and rotatingly driven by a control part 20 so as to uniform tension in the width direction of the magnetic recording medium before cutting. Thus, a variation in the tension in the width direction of the magnetic recoding medium before cutting is relieved, and a variation in the cutting width between the cut respective magnetic recording media can be reduced. Since the driving part is only preferably added and arranged to the respective guide rollers 15A to 15C, complication and an enlargement of a device constitution can be avoided. COPYRIGHT: (C)2005,JPO&NCIPI
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