| 摘要 |
PURPOSE:To avert extending of the time for restraining an operator even in the case of carrying out a continuous treatment of cassette by providing a cassette holding part for sheet housing which can hold the plural cassettes separately from a stacker and cassette holding part for sheet supplying. CONSTITUTION:The stacker 60 is provided between the cassette holding part 10 for sheet supplying and a reading part 20. The cassette 2 loaded in the cassette holding part 10 for sheet supplying is, therefore, capable of taking out an accumulative fluorescent material sheet 1 therein and feeding the sheet to the stacker 60 before reading of the preceding sheet 1 does not end. Loading and taking out of the plural cassettes 2 can be ended in a relatively short time in the cassette holding part 10 for sheet supplying. On the other hand, the sheets 1 subjected to the reading and erasing are successively carried into the plural cassettes 2 in the cassette holding part 40 for sheet housing and, therefore, the operator is simply required to take out the cassette by waiting for the end of the cassette loading. The long-time restraining of the operator is thereby averted.
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