Tally Genicom Matrix Printer - Manual (Page 248)

If only one margin is changed, the other margin will be reset to default value.
If there are any logical problems (for example, left margin > right margin), the sequence
is ignored.
Example 10 REM left and right margin
20 WIDTH "LPT1:",255
30 LPRINT CHR$(27);"[10;53s";
40 LPRINT "Now the left margin is set to column 10 and the ";
50 LPRINT "right margin is set to column 53."
60 LPRINT CHR$(27);"[5;41s";
70 LPRINT "Now the left margin has been reduced to column 5 ";
80 LPRINT "and the right margin has been set to column 41."
90 END
12 Paper and Text Formatting