Abstract: A light pipe is mounted to a support structure along a length of the light pipe. The light pipe has an end at which light enters the light pipe. Light exits the light pipe at an emissive surface of the light pipe. A reflective backing is positioned at a surface of the light pipe opposite the emissive surface. A compliant member between the reflective backing and the support structure maintains the reflective backing flush against the surface of the light pipe.

Abstract: A light pipe is mounted to a support structure along a length of the light pipe. The light pipe has an end at which light enters the light pipe. Light exits the light pipe at an emissive surface of the light pipe. A reflective backing is positioned at a surface of the light pipe opposite the emissive surface. A compliant member between the reflective backing and the support structure maintains the reflective backing flush against the surface of the light pipe.

Abstract: An illumination device includes a light guide member having a first side in a main scanning direction and a second side in a sub-scanning direction and a plurality of light sources including first light emitters respectively to emit beams of light of a first color and a second light emitter to emit a beam of light of a second color different from the first color toward an inside of the light guide member via a side of the light guide member in the main scanning direction. The first light emitters are positioned in the sub-scanning direction to be symmetrical to each other.

Abstract: A scanner includes an image read unit including a linear image sensor having a length in a main scanning direction, a compensation value calculation unit to compare data read from a main scanning reference pattern including a plurality of main scanning sections arranged in the main scanning direction with data of the main scanning reference pattern that is previously stored, and to calculate a plurality of main scanning scale compensation values respectively corresponding to the plurality of main scanning sections, and an image processing unit to compensate for distortion in the main scanning direction by dividing an image read from the document into a plurality of main scanning image areas respectively corresponding to the plurality of main scanning sections and applying the plurality of main scanning scale compensation values respectively to the plurality of main scanning image areas.

Abstract: An example image scanning apparatus includes a lighting unit to irradiate light onto a manuscript using an LED light source, a scan unit to generate a scan image by scanning image information of manuscript using light reflected by the manuscript, and a processor to control the lighting unit to irradiate light on each unit pixel by a predetermined duty during a movement process of the manuscript in a sub-scan direction.

Abstract: An example image scanning apparatus includes a lighting unit to irradiate light onto a manuscript using an LED light source, a scan unit to generate a scan image by scanning image information of manuscript using light reflected by the manuscript, and a processor to control the lighting unit to irradiate light on each unit pixel by a predetermined duty during a movement process of the manuscript in a sub-scan direction.