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各种不同型号打印机都配有厂家自行编制的一套控制码,虽然目前尚未统一标准,但都可分为两大类:一类是单一码,如CR(回车),LF(换行)等;另一类是组合码,即在ESC(ASCII码27)之后尾随某些字符或数字,产生某些特殊控制功能,汉字字型控制码即属于这一类。这里以24针打印机3070为例,在CCDOS2.10操作系统和ALL24P驱动程序支持下控制打印汉字字型的通用格式是:
A variety of different types of printers are equipped with a set of factory-developed control code, although there is no uniform standard, but can be divided into two categories: one is a single code, such as CR (Enter), LF (line feed), etc. ; The other is the combination of code, that is, after ESC (ASCII code 27) followed by certain characters or numbers, resulting in some special control functions, Chinese font control code belong to this category. Here to 24-pin printer 3070, for example, in CCDOS2.10 operating system and ALL24P driver support print format control under the Chinese font is: