Abstract
Recently the card reader is used for observing security of entrances of office building, multifamily housing and so on. Some customers using our card reader are not satisfied with the processing speed during the morning rush hour.As a result of observation, the pictogram on the card reader is necessary to be improved. The components of the pictogram are contributed to make ID card hit the center of card reader.As a result of analysis of some design proposals, the relations are clarified between the components of pictogram and efficient hitting.These results are very helpful to produce a card reader.