×

Image reading apparatus, image forming apparatus, and image forming method

  • US 20070291331A1
  • Filed: 06/14/2006
  • Published: 12/20/2007
  • Est. Priority Date: 06/14/2006
  • Status: Active Grant
First Claim
Patent Images

1. An image reading apparatus for reading a color document as a monochrome image, comprising:

  • a composite light source that irradiates the color document and includes plural light sources different in spectral distribution;

    a sensor configured to detect an intensity of a reflected light from the color document;

    a light emission ratio setting unit configured to changeably set light emission ratios different for the respective light sources; and

    a light source control unit to control effective light amounts of the plural light sources with the set light emission ratios.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×