Patent ID: 6843409

Claim:
A media container module comprising; a casing having a storage space and a media insertion hole formed therein for inserting media into or remove media from the storage space; a shutter unit having a shutter installed inside the casing and opening and closing the media insertion hole; a first locking unit having a first position and a second position, wherein said first locking unit locks the shutter in a position closing the media insertion hole when in the first position and unlocks the shutter to permit the shutter to be opened when in the second position; a second locking unit having a blocking position and a releasing position, wherein the second locking unit holds the first locking unit in the first position when in the blocking position and allows the first locking unit to move to the second position when in the releasing position; an operation key installed at a mounting unit of a mounting device, wherein the operation key physically interacts with the second locking unit to cause the second locking unit to move to the releasing position, and wherein the operation key physically interacts with the first locking unit to cause the first locking unit to move to the second position; and a shutter opening unit for opening the shutter when the media container module is mounted at the mounting unit of the mounting device.