随着画面处理和画面通讯技术的广泛应用,对制取高质量硬质拷贝的成象设备提出了更高的要求,如要解象力高、记录时间短、连续调记录、以及用普通纸作影象载体等。通过光—电转换,在光导材料或照相材料上产生潜影的记录方法,看来是快速记录和得到高质量影象的最佳方法。但其缺点是设备昂贵,同时还需光敏纸作影象载体。 With the wide range of application of picture processing and picture communication technologies, higher requirements are put forward on the imaging equipment for producing high-quality hard copies, such as high resolution, short recording time, continuous recording, and ordinary paper making Like the carrier and so on. The recording of latent images on photoconductive or photographic materials through photo-to-electrical conversion appears to be the best method for fast recording and high quality images. However, the disadvantage is that the equipment is expensive and at the same time photosensitive paper is required for the image carrier.