| 摘要 |
PURPOSE:To prevent a locking mechanism from breaking down by facilitating operation by locking a platen cover automatically only during exposure. CONSTITUTION:From a freely openable platen cover 5 provided on a platen 2, a hook lever 8 is projected. Further, a hook body 13 capable of engaging with a notch 8a freely is provided where the platen cover 5 meets the notch 8a provided to the hook lever 8 when closed, and the hook body 13 is moved to an engaging position by the means, such as a solenoid 12 operated during exposure. |
