Tally Genicom Matrix Printer - Manual (Page 268)

Example 10 REM print quality
20 LPRINT CHR$(27);"[0yThis is draft quality ";
30 LPRINT CHR$(27);"[1yand this is NLQ printing."
40 LPRINT CHR$(27);"[5yThis is NLQ with 12 cpi."
50 END
32 Character Styling