Image Reading Apparatus

An image reading apparatus, comprising:

• a first transparent section, which is made of a transparent material and is configured to have a first original sheet set on an upper surface thereof:
• a second transparent section, which is made of a transparent material and is configured to have a second original sheet conveyed by a sheet conveyer to be in contact with an upper surface thereof and to pass over the upper surface;
• a reader unit, which comprises a plurality of light receiving elements arranged along a main scanning direction;
• configured to be movable in a sub-scanning direction being orthogonal with respect to the main scanning direction;
• configured to be moved in a lower area with respect to the first transparent section in the sub-scanning direction along the first transparent section to read an image formed on the first original sheet being set on the upper surface of the first transparent section;
• and configured to be maintained still in a lower area with respect to the second transparent section to read the image formed on the second original sheet being conveyed by the sheet conveyer;
• a white reference member, which is arranged in an image readable position for the reader unit to read an image of the white reference member, the image of the white reference member read by the reader unit being recognized as a reference white color;
• a light reductive member, which is arranged on an inner bottom of a casing accommodating the reader unit and configured to reduce an amount of incident light to be reflected on the inner bottom of the casing and to be directed to irradiate the reader unit,
• wherein the light reductive member reduces the amount of incident light, when the incident light passes through the second transparent section and reaches the inner bottom of the casing whilst the reader unit is in the image readable position.