| 摘要 |
PROBLEM TO BE SOLVED: To confirm whether or not a structural member is attached by a simple means in a printing machine having the detachable structural member. SOLUTION: A detachable structural member has a permanent magnet 3 which can be detected by the sensor 8 fixedly attached to a machine frame at a suitable place. The signal of the sensor 8 is guided to an evaluation unit and, on the basis of the signal of the sensor, the evaluation unit determines whether or not the structural member is attached correctly. |
