Printek PrintMaster 850 Series - Manual (Page 72)

DEC LA120/210 Emulation
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Some escape sequences refer to the active column or active line. The active column is the column where the
next character will be printed. Printing a character or a space will increment the active column. The active
line is the line where the next character will be printed. A line feed will increment the active line. Column and
line numbers begin at one, not at zero. Keep this in mind when setting tabs, margins, etc.