| 摘要 |
PURPOSE:To prevent the generation of erroneous operation caused by the attachment and detachment operation of a memory means, by constituting the titled controller so that the transmission of a signal between a control part and a memory means is inhibited on the basis of the signal of a lock release signal generation means at the time of the attachment and detachment of the memory means. CONSTITUTION:A front cartridge 10 is always locked by a lock mechanism 14 and released from a lock state by pushing a lock release button 16 so as to be capable of being detached. Unless the lock release button 16 is pushed when the cartridge 10 is mounted to a connector 12, a lock member obstructs the passage of the cartridge 10 and the cartridge can not be mounted to the connector 12. Therefore, the lock release button 16 is held to a pushed state before the cartridge is perfectly attached and detached and a lock release signal S1 is always succeedingly outputted during attachment and detachment operation and, because buffer 20 is controlled by this signal S1, the erroneous operation of a control part 30 caused by the attachment and detechment operation of the cartridge is prevented. |
