FIXED MAGNETIC DISK DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a fixed magnetic disk device highly reliable for the dew condensation generated by the using environment, especially by the temperature change. SOLUTION: This device is constituted in such a manner that a humidity adjusting plate 9 made by the porous material for adjusting the humidity of a casing inside by carrying the dew condensation due to the internal/external temperature difference of the casing 6 to the surface while being arranged in contact with the inner wall surface, and a humidity adjusting hole 11 for adjusting the humidity of the casing inside by opening/closing with the interrupting mechanism 10 driven in accordance with the humidity of the case inside, are furnished on the casing 6 forming the outer shell of the device.