摘要 |
Disclosed is a library apparatus capable of indicating an availability state of a slot according to the availability state of the slot that a magazine has. The storage library apparatus 1 rotates the first position P that indicates a usable state of a slot 7 by a first protection lever 4 being pushed by a accessor 3 which can convey, contacts against in a stopper 6, accordingly, is fixed by a lock component 5 and is fixed to the lock component 5 by rotating a second position R that indicates the unusable state of a slot 7. |