IBM Personal Computer AT Manual To Operations page 100

ESCS
ESCT
ESCU
Escape S (Subscript/Superscript On)
Format: ESC S;n;.
Changes the printer to the Subscript mode
when ESC S is followed by a 1 as in the
example below. When ESC S is followed
by a 0 (zero), the printer prints in the
Superscript print mode.
LPRINT CHR$(27);CHR$(83);CHR$(1);
Escape T (Subscript/Superscript Off)
The printer stops printing in the Subscript
or Superscript print mode.
LPRINT CHR$(27);CHR$(84);
Escape U (Unidirectional Printing)
Format: ESC U;n;.
The printer prints from left to right
following the input of ESC U; 1. When
ESC U is followed by a 0 (zero), the
left-to-right printing operation is canceled.
The Unidirectional print mode ensures a
more accurate print start position for better
print quality.
LPRINT CHR$(27);CHR$(85);CHR$(1);
~
1-40 Graphics Printer