| 摘要 |
PURPOSE:To miniaturize the titled device by installing plural printed circuit boards to a track, cooling the boards with a line flow fan from the bottom of the track and exhausting the wind from the other side of the upper part to reduce the noise and to improve the space efficiency. CONSTITUTION:Many printed circuit boards PC boards 11- are accommodated in a rack 14 at the left side in the main body 1 (Fig. shows longitudinally sectioned back view) and the lower side of a picture reader, and the line flow fan 12 to cool the boards 11- is provided between the boards 11 and a picture forming section 7. The fan 12 delivers wind from the fan main body 17 fixed to a base 15 so as to be placed at the bottom corner, passes through a duct arranged slightly lower than the base 15 at the outer side of the bottom of the rack 14, cools the boards 11- and is exhausted from the upper part through an exhausting outlet to the opposite side to the duct 18 to the rack 14. |
