| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an image reader which can uniformly cool a long light source inside the image reader in a main scanning direction in a simple structure without increasing the number of components of the device. Ž<P>SOLUTION: This image reader comprises: an optical read means provided with a long light source 341 along the main scanning direction; a first accommodating part A for accommodating the optical read means; a second accommodating part B adjacent to the side face in a sub-scanning direction perpendicular to the main scanning direction of the first accommodating part via the first accommodating part A and a diaphragm 31A; and a ventilating means 41 for transferring air between the first accommodating part A and the second accommodating part B. The diaphragm 31A includes a first vent hole comprising one or a plurality of openings for moving the air in the first accommodating part A to the second accommodating part B, and a second vent hole comprising a plurality of openings provided in the diaphragm 31A in the main scanning direction, for moving the air in the second accommodating part B to the first accommodating part A. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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