被称为计算机“眼睛”的扫描仪是继键盘、鼠标之后的第三代计算机输入设备。随着计算机应用的日益普及和扫描仪产品本身的性能价格比的提升使扫描仪在全球性的信息化浪潮中得到了越来越广泛的使用,扫描仪技术和产品发展都非常迅速,已进入高速增长期。全球扫描仪市场的增长率已连续多年保持在70％以上,在信息产品市场上十分引人注目。新产品、新技术、新的应用软件不断出现使扫描仪可以满足各类不同应用领域的需要,而激烈的市场竞争和销量的激增使 Known as the computer “eyes” of the scanner is the third generation of computer input devices after the keyboard and mouse. With the increasing popularity of computer applications and the improvement of the price / performance ratio of scanners themselves, scanners have become more and more widely used in the global wave of information technology. Scanner technology and product development are very rapid and have entered Rapid growth period. The growth rate of the global scanner market has been maintained at more than 70% for many years in a row, attracting much attention in the market of information products. New products, new technologies and new application software are emerging so that the scanner can meet the needs of various application fields. The fierce market competition and the surge in sales volume make