Patent ID: 8570352

Claim:
An optical reading device, comprising: a housing made of metal, including a bottom plate and having an open upper surface; a document platen member mounted in an opening of the housing; a scanning unit in which a light source is mounted and which emits light toward the document platen member while reciprocating along a predetermined scanning direction between the bottom plate and the document platen member; a cable including a first end which is fixed to the scanning unit, a second end which is fixed to the bottom plate and an intermediate portion which is held in surface contact with the bottom plate and curved according to a reciprocal movement of the scanning unit; and an insulating sheet interposed between the bottom plate and the intermediate portion of the cable; wherein: the housing includes a recess formed in the bottom plate and extending in the scanning direction, the recess being a shallow groove having an open upper side, a flat bottom surface and a pair of inclined portions extending obliquely up from side edges of the bottom surface; and the insulating sheet covers an opening of the recess, the upper surface thereof is in contact with the intermediate portion of the cable and a space is formed between the lower surface of the insulating sheet and the bottom surface of the recess.