Image sensor unit, image reading device, and image forming device

An image reading device comprising:

• an image sensor unit that reads a document,
• the image sensor unit including:
• a light source that illuminates a document;
• a rod-shaped light guide including a reflection surface that reflects light from the light source and an emission surface provided on a side opposite to the reflection surface that emits light reflected by the reflection surface to the document;
• a thermal conductor provided so as to cover the reflection surface of the light guide;
• an image forming element that forms an image of reflected light from the document on a photoelectric conversion element;
• a sensor substrate on which the photoelectric conversion element is mounted;
• and
• a frame including a locator for mounting the light guide,
• the image reading device comprising:
• a controller that performs shading correction on image data of the document read by the image sensor unit.

An image forming device comprising:

• an image reading device including an image sensor unit that reads a document;
• and
• an image former that forms an image based on image data of a document read by the image reading device,
• wherein the image sensor unit includes:
• a light source that illuminates a document;
• a rod-shaped light guide including a reflection surface that reflects light from the light source and an emission surface provided on a side opposite to the reflection surface that emits light reflected by the reflection surface to the document;
• a thermal conductor provided so as to cover the reflection surface of the light guide;
• an image forming element that forms an image of reflected light from the document on a photoelectric conversion element;
• a sensor substrate on which the photoelectric conversion element is mounted;
• and
• a frame including a locator for mounting the light guide, and
• the image reading device includes:
• a controller that performs shading correction on the image data of the document read by the image sensor unit.