Scanner module and image scanning apparatus employing the same

An image forming apparatus comprising:

• a document bed;
• and
• a scanning module operable to scan a document placed on the document bed, the scanning module including an illuminator to illuminate light onto the document to be scanned and a sensor to detect the light reflected by the document, the illuminator including:
• a first light guide that receives light from a first light emitting diode and a second light guide receives light from a second light emitting diode, each of the light guides having an elongated shape with an incidence face formed on one of longitudinal ends thereof to receive light, the light guide to change a direction of the light received through the incidence face;
• wherein each of the light guides includes:
• a first guide face,
• a second guide face,
• an emission face provided between the first and second guide faces to emit light from the light guide to the document to be scanned, and
• a reflecting face located opposite to the emission face to reflect light received through the incidence face,
• each of the first and second guide faces extends between the longitudinal ends of the light guide such that a first plane corresponding to the first guide face forms an acute angle with a second plane corresponding to the second guide face,
• wherein the first light emitting diode is mounted to a first light source holder having a white material at least on a side surface facing the incidence face of the first light guide, and the second light emitting diode is mounted to a second light source holder having a white material at least on a side surface facing the incidence face of the second light guide.