In an image reading apparatus for reading a color document as a monochrome image, an image forming apparatus of the invention includes a composite light source that irradiates the color document and includes plural light sources different in spectral distribution, a sensor to detect the intensity of...http://www.google.es/patents/US7616359?utm_source=gb-gplus-sharePatente US7616359 - Image reading apparatus, image forming apparatus, and image forming method
Image reading apparatus, image forming apparatus, and image forming method
