| 摘要 |
An image-forming device is provided with a shutter member that has a ventilation passage formed extending therethrough in a main scanning direction, the shutter member adapted to slide over the outside surface of the housing in a secondary scanning direction, a cover member adapted to open or close an interior of a chassis of the device. The shutter member, when the cover member is moved in a direction to open up the inside of the device chassis, is moved in a direction to shut an output window, and when the cover member is moved in a direction to close up the inside of the device chassis, is moved in a direction to open the output window. In association with movement of the shutter member towards the open direction, the ventilation passage faces a ventilation opening of a duct furnished to the device chassis.
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