| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a structure of electromagnetic shield box which is compact and has good cooling efficiency, and an image forming apparatus. <P>SOLUTION: A copying machine includes the electromagnetic shield box 103 which stores electronic parts of different sizes needing an electromagnetic shield and a box cooling fan 107 for cooling the inside of the electromagnetic shield box 103, wherein a step is formed between a first top end surface 105a and a second top end surface 105 of the electromagnetic shield box 103, a box cooling fan 107 is provided on the second top end surface 105b in the lower stage so that the blowing direction is upward and furthermore, a duct 111 for deflecting the blowing direction is provided above the box cooling fan 107. <P>COPYRIGHT: (C)2010,JPO&INPIT |
