Method of and apparatus for connecting output image signals from a plurality of line image sensors.

摘要

An amount of a read position error in the subscanning direction between line image sensors (CCD1, CCD2, CCD3) is obtained by scanning and reading a correction read pattern (6a, 6b). In scanning of an original, output image signals from the line image sensors (CCD1, CCD2, CCD3) are relatively delayed by a line number corresponding to the amount of the read position error between the line image sensors (CCD1, CCD2, CCD3), to correct time difference, caused by the read position error, in information reading in the boundary portion of the line image sensors.