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MAGNETIC TAPE REEL, TAPE CARTRIDGE USING THE SAME, RECORDING AND REPRODUCING APPARATUS FOR RECORDING AND REPRODUCING INFORMATION IN THE TAPE CARTRIDGE, AND INFORMATION RECORDING AND REPRODUCING METHOD THEREOF
MAGNETIC TAPE REEL, TAPE CARTRIDGE USING THE SAME, RECORDING AND REPRODUCING APPARATUS FOR RECORDING AND REPRODUCING INFORMATION IN THE TAPE CARTRIDGE, AND INFORMATION RECORDING AND REPRODUCING METHOD THEREOF
A magnetic tape reel that has a plurality of gear teeth capable of engaging with a plurality of engagement gear teeth provided with a reel engaging portion of a recording and reproducing apparatus and upon which magnetic tape can be wound, the magnetic tape reel comprising: a hub portion including a cylindrical portion upon which the magnetic tape can be wound and the plurality of gear teeth; and a positioning mark capable of being detected using a contactless detector, the positioning mark being provided for aligning a specific gear tooth A from the plurality of gear teeth with a specific engagement gear tooth B from the plurality of engagement gear teeth.
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