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Image reading apparatus, control method therefor, and program

  • US 20030214680A1
  • Filed: 05/12/2003
  • Published: 11/20/2003
  • Est. Priority Date: 05/14/2002
  • Status: Active Grant
First Claim
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1. An image reading apparatus comprising:

  • a light source which illuminates an object;

    a reading device which photoelectrically converts light reflected by the object and reads information on the object;

    a density reference member which serves as a reference for correcting an image signal obtained by reading an original by said reading device;

    a roller member which feeds the original to a reading position;

    a comparison device which compares a second signal obtained by reading said roller member by said reading device and a third signal obtained by reading again said roller member by said reading device; and

    a correction device which corrects the image signal on the basis of a first signal obtained by reading said density reference member by said reading device, and a comparison result of said comparison device.

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