| 摘要 |
Disclosed is an image reader, which comprises a circuit board ( 36 ) designed to mount, to the same surface thereof, an image pickup device ( 34 ) and an IC device ( 128 ). The circuit board ( 36 ) is fixedly fastened to horizontally opposite ends of a board support plate ( 114 ) by a fastening member ( 120 ), in such a manner that it is in contact with a plurality of protrusion members ( 116, 118 ) provided at respective positions around a window ( 112 ) of a rear surface of the board support plate ( 114 ), while allowing a light-receiving surface of the image pickup device ( 34 ) to face an imaging lens ( 38 ).
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