| 摘要 |
<p>The device has a suction device (3) arranged in a region of a paper ejector (4) of a printing device (1). The suction device is connected with a filter device to detect harmful agents accumulated in a region of the paper ejector and to prevent the agents from entering into ambient air or to a person operating the printing device. The suction device comprises elongated suction openings that lie parallel to the paper ejector. A controller (9) comprises a relay ampere circuit, and an inlet and an outlet for a power line.</p> |
