| 摘要 |
<p>PURPOSE: To surely eject an information medium based on the procedures adaptable to the operating condition through a simple operation by appropriately eject the information medium according to the state of a disk in a standby condition or an accessed condition. CONSTITUTION: A one chip microcomputer 33 always recognizes the access state and the standby state of the film fixed on a scanning table 63. When a state changing point is detected, the counted value of a counter 75 is initialized to zero and a standby state monitoring task or an access state monitoring task is activated. The standby state monitoring task is repeatedly activated by a prescribed period, the microcomputer 33 monitors the state of a switch 32, and when the contacts are closed and a holder 81 is loaded on the table 63, an ejection process is started. Moreover, in the access state monitoring task, the microcomputer 33 performs an increment of the computed value of the counter 75 when the contacts of the switch 32 are closed and compares the updated computed value with a set threshold value. If the above two values are not equal, the task is rapidly completed. If the above values are equal, an ejection processing is activated.</p> |
