Image scanning device

An image scanning device in which an image scanning element group constructed by arranging CMOS type image scanning elements in a matrix form is divided into a plurality of areas and an image signal is output for every area, comprising:

• a plurality of charge integrating units, each of the charge integrating units being provided in each of the plurality of areas for integrating charges output from plural image scanning elements arranged in the area concerned and outputting the charges thus integrated as an integrated charge;
• an integrated charge selecting unit for selecting any one or more integrated charges from the plural integrated charges output from the plural charge integrating units and outputting the integrated charges thus selected;
• a charge accumulating unit for accumulating and combining any one or more integrated charges output from the integrated charge selecting unit as a composite charge;
• and
• an image signal outputting unit for converting the composite charge accumulated in the charge accumulating unit to an image signal and outputting the image signal thus converted.