IBM Personal Computer AT Manual To Operations page 101

ESCW Escape W (Double Width)
ESCY
ESCZ
ESC
<
Format: ESC W;n;.
Changes the printer to the Double Width
print mode when ESC W is followed by a 1.
This mode is not canceled by a line-feed
operation and must be canceled with ESC
W followed by a 0 (zero).
LPRINT CHR$(27);CHR$(87);CHR$(1);
Escape Y (960-Bit-image Graphics Mode
Normal Speed)
Format: ESC Y;nl;n2;vl ....
Vk;
Changes from the Text mode to the
960-Bit-Image Graphics mode. The printer
prints at normal speed during this operation
and cannot print dots on consecutive dot
positions. The input of data is similar to
ESC K.
Escape Z (I920-Bit-Image Graphics mode)
Format: ESC Z;n j ;n2;vj .... vk;
Text mode changes to the 1920-Bit-image
Graphics mode. The input of data is similar
to ESC K. ESC Z can print only every third
dot position.
Escape Less Than (Home Head)
The print head returns to the left margin to
print the line following ESC
<.
This occurs
for one line only.
LPRINT CHR$(27);CHR$(60);
Graphics Printer 1-41