IMAGE READER

PROBLEM TO BE SOLVED: To provide an image reader capable of preventing or reducing read information from being missed by a lighting-off time of light in RGB when reading a document (color image data). SOLUTION: The image reader includes: a white reference member 28 for correcting image information read from a document P; a light source part 140 capable of sequentially irradiating the white reference member 28 and the document P with light in R, G and B under independent control; a reading element 142 for reading reference information based on reflection light Rw reflected on the white reference member by the irradiation with the irradiation light from the light source part 140 and image information based on reflection light Rp reflected on the document P by the irradiation with the irradiation light from the light source part 140; and a data comparator 17 as a controller which generates a driving pulse for driving the light source part 140 while controlling the lighting-on time and lighting-on timing of the light in R, G and B from the light source part 140 on the basis of the reference information when reading image information of the document P. COPYRIGHT: (C)2011,JPO&INPIT