论文部分内容阅读
1959年 IBM 介绍第一款商用计算机用的链式打印机,它把字型串成环形链,以每分钟90英寸的速度滚动,每分钟可打印600线。该打印机的速度是竞争者的4倍。链式打印机最后发展成为行式打印机。行武打印机体积、噪音都很大,而且图像质量低下。1973年佳能研究出了电子照相记录技术,通过激光束作用于复印机的感光鼓而达到生动的打印效果。1975年4月,IBM 以“世界上第一台激光打印机”之名在媒
In 1959, IBM introduced the first chain printer for a commercial computer, which fonts were typed into endless chains and rolled at 90 inches per minute, yielding 600 lines per minute. The printer is four times faster than competitors. Chained printer finally developed into a line printer. Take the printer volume, noise is large, and the image quality is low. Canon developed in 1973 electrophotographic recording technology, through the laser beam on the copier photosensitive drum and achieve vivid printing. April 1975, IBM in the “world’s first laser printer,” the name of the media