Optical mark reader (omr scanner) is a high-tech data input device integrated optical and electrical technology. omr solves entirely the bottleneck problem of data input. it is a powerful tool for speedy automatic data capture.\n\nthe speed is several hundreds of times faster than that of manpower, especially the machine can work for a long time without break. so nothing else can instead of omr so far.\n\nwe now have omrfs, omrfd, omrfbs and omrfbd etc 13 series including 36 types. nanhao omr can be widely used in education examinations, signing up, subject choice, data statistics and evaluation in fields such as vote, transportation, human resources, fiscal taxation and finance and so on.