NANHAO Optical Mark Reader (OMR Scanner) is a high speed data capture device which is mainly used for recognizing the filled datas in all kind of info-Forms. It’s highest reading speed can reach nearly 8000 info-Forms per hour (A4) NANHAO Optical Mark Reader (OMR Scanner) has been largely used in all kind areas of high speed data processing, such as school examination, vote, transportation, human resources, fiscal taxation and finance and so on.[...]