PHOTOELECTRIC CONVERTER, PHOTOELECTRIC CONVERSION METHOD, IMAGE INFORMATION PROCESSING UNIT, IMAGE INFORMATION PROCESSING METHOD AND IMAGE FORMING DEVICE

摘要

PROBLEM TO BE SOLVED: To correct deviation in image data with respect to image density and to align signal arrangement of the image data in the case of using a 4- channel output CCD. SOLUTION: In a high speed scanner control ASIC 135, an output signal from a 4-channel output CCD is processed by a preprocessing system, image data received from A/D converters 133, 134 in the pre-processing system are corrected by shading correction circuits 141-144 via a bus width conversion circuit 140, signal deviation of image data with respect to image density is corrected by a left-right correction circuit 160, bits are inverted by bit inversion circuits 161-164 and a raster conversion circuit 165 aligns data signal arrangement.