Patent ID: 7453607

Claim:
An image-reading apparatus comprising: a scan-reading unit having a line sensor mounted thereon for converting light from an original document into an image signal; a moving unit for moving said scan-reading unit along the original document; an image-signal processing circuit for processing an image signal output from said scan-reading unit; a wiring cable for conducting the image signal output from said scan-reading unit to an input of said image-signal processing circuit; a first metallic casing for accommodating said image-signal processing circuit; a second metallic casing for accommodating said first metallic casing for accommodating said image-signal processing circuit, said scan-reading unit, and said wiring cable; and an insulating member formed on a region, to which said wiring cable might come close, of an external surface of said first metallic casing, said wiring cable contacting said insulating member when said moving unit moves said scan-reading unit.