Patent ID: 8607254

Claim:
A cartridge transporting device comprising: a cartridge holder into which a cartridge receiving a recording medium is inserted and which holds the inserted cartridge; a supporting frame that supports the cartridge holder to freely move between an insertion position where the cartridge is inserted and a drawn-in position where the cartridge is drawn-in from the insertion position; a locking member that moves between a locking position where the cartridge holder is locked and a non-locking position where the cartridge holder is unlocked, moves to the locking position, and locks the cartridge holder at the insertion position; a holder driving member that is movable in a predetermined direction and moves the cartridge holder between the insertion position and the drawn-in position; and a moving mechanism that moves the holder driving member in the predetermined direction, wherein when the cartridge holder starts to move from the insertion position to the drawn-in position, the holder driving member moves such that the cartridge holder locked by the locking member is unlocked, wherein the locking member has a locking portion and the cartridge holder has a locked portion, wherein the locking member moves perpendicular to an insertion direction of the cartridge in the cartridge holder such that the locking portion is engaged with the lock portion to lock the cartridge holder, wherein the locking portion of the locking member is formed in a plate shape, wherein the locked portion of the cartridge holder is formed as a locked hole, wherein the locking portion is inserted and fitted in the locked hole, thereby the cartridge holder is locked, and wherein a width direction of the locking portion is the same as the insertion direction of the cartridge in the cartridge holder.