说明：  Delphi打印机编程资料,详细阐述了Delphi打印机变成的过程及打印机的详细参数设置如:打印纸张设置，打印内容、屏幕分辨率等。
(Delphi printer programming information, described in detail the process of Delphi printer and printer into a detailed parameter settings such as: printing paper set, print content, screen resolution and so on.)