| 摘要 |
PROBLEM TO BE SOLVED: To provide a noise absorption device that eliminates the need of hole drilling processing for forming an opening in a member on which the noise absorption device is formed, and can suppress an increase in man-hours during manufacture, and an electronic apparatus and an image forming device including the same.SOLUTION: In a noise absorption device 5 comprising a cavity part 4 that is formed by joining a cavity forming member 1 as a first member and a lid member 2 as a second member, and an opening 3 communicating the cavity part 4 with the outside, a notch part 190 in a shape for forming the opening 3 is provided in a cavity forming member end face 19 that is a joint surface on the cavity forming member 1 side so as to provide the opening 3 at a joint part of the cavity forming member 1 and lid member 2.SELECTED DRAWING: Figure 1 |
