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激光打印机是一种高速度高质量的输出设备。在Windows环境下进行较为复杂的图文输出时,大多数激光打印机还是每分钟只能输出1页左右,不管主机配置多高,CPU速度多快!问题主要在于普通激光打印机并口的数据传输速度较低。目前,激光打印机的数据传输接口主要有3种:串口方式、并口方式和视频接口方式。激光打印机视频接口方式的主要优点是:(1)解决非编码数据传输工作方式下的数据传输“瓶颈”问题;(2)可以充分利用主机的软硬件资源。视频接口方式的主要缺点是,在DOS环境下的支持软件有限,而且需要通过一块专门设计的视频传输卡进行连接。随着计算机
Laser printers are high-speed, high-quality output devices. In the Windows environment for more complex graphics output, most laser printers or output per minute can only be about 1 page, no matter how high the host configuration, CPU speed! The main problem is that the average laser printer parallel port data transfer speed than low. At present, the laser printer data transmission interface mainly has 3 kinds: Serial port way, parallel port way and video interface way. The main advantages of the laser printer video interface method are: (1) to solve the problem of data transmission “bottleneck ” under the non-coding data transmission working mode; and (2) to fully utilize the host hardware and software resources. The main disadvantage of the video interface approach is that it has limited support software in a DOS environment and needs to be connected via a specially designed video transmission card. With the computer