Image reading device
AssigneeBrother Kogyo Kabushiki Kaisha
InventorHiroshi Morisaki
Life of this patent
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Abstract
There is provided an image reading device, which comprises an illumination unit configured to diffuse light from light sources in a predetermined scanning direction to illuminate an object with diffused light, a reading unit having photoreceptors aligned in the predetermined scanning direction to receive light reflected from the object, a detection unit configured to detect lighting status of the light sources; and a controller that obtains an image of the object by using a normal one of the light sources as a main light source if at least one of the light sources is in an abnormal state.
Claims17
An image reading device, comprising:
- an illumination unit configured to diffuse light from light sources in a predetermined scanning direction to illuminate an object with diffused light;
- a reading unit having photoreceptors aligned in the predetermined scanning direction to receive light reflected from the object;
- and
- a controller that obtains an image of the object by using a normal one of the light sources as a main light source if at least one of the light sources is in an abnormal state.
An image reading device, comprising:
- an illumination unit configured to diffuse light from light sources in a predetermined scanning direction to illuminate an object with diffused light;
- a reading unit having photoreceptors aligned in the predetermined scanning direction to receive light reflected from the object;
- a detection unit configured to detect lighting status of the light sources, and
- a controller configured such that, in response to the abnormal state of the at least one light source of the light sources being detected by the detection unit, the controller controls the reading unit so that the reading unit obtains the image of the object on an opposite side with respect to the at least one light source in the abnormal state in the predetermined scanning direction.
An image reading device, comprising:
- an illumination unit configured to diffuse light from light sources in a predetermined scanning direction to illuminate an object with diffused light;
- a reading unit having photoreceptors aligned in the predetermined scanning direction to receive light reflected from the object;
- a detection unit configured to detect status of the reading unit;
- and
- a controller configured such that, in response to an abnormal state in at least a part of the reading unit being detected by the detection unit, the controller controls the reading unit so that the reading unit obtains an image of the object on an opposite side of the at least a part in the abnormal state in the predetermined scanning direction.
Dependencies are inferred from the claim text.