| 摘要 |
PURPOSE:To clean a magnetic tape as soon as the tape is rewound by a magnetic tape device by controlling a cleaning ribbon contact device after detecting that the magnetic tape device is set in its prescribed state. CONSTITUTION:A tape initiation detection signal BOT and a loading switch-on signal are applied to a signal SVO showing that a magnetic tape is wound normally round a reel after loading the tape. Thus the output of a gate circuit 17 is inverted, and a cleaning device is controlled via a cleaner driving circuit 18 to set a cleaning tape between a head and the magnetic tape. At the same time, a motor is actuated by a motor driving circuit 19. Thus both the head and tape are cleaned, and the driving of the tape is stopped when the tape termination is detected. In the same way, the cleaning of a rewind mode is carried out via the circuit 17 and with a rewind switch-on signal. In such a way, a magnetic tape is cleaned concurrently with rewinding of tape and without unloading the tape. |
