NCR 7158, Owner'S Manual, Page: 180 / 314

7-52 Chapter 7: Programming Guide
Set Printing Area Width
ASCII : GS W nL nH
Hexadecimal : 1D 57 nL nH
Decimal: 29 87 nL nH
Range of nL : 0 – 255
Range of nH : 0 - 255
Default: 576 dots (the maximum printable area)
Sets the width of the printing area. If the setting exceeds the printable
area, the maximum value of the printable area is used.
The width of the printing area is set to (((
nH X 256) + nL ) times
horizontal motion unit) inches. The horizontal motion units are set by
the Set Horizontal and Vertical Minimum Motion Units command (1D
50).
The width of the printing area follows the Set Left Margin command
(1D 4C).
See the Set Left Margin command (1D 4C…) earlier in this document
for a description.
Formulas:
To set the width of the printing area to one inch at the default
horizontal motion unit of 1/203 inches, send the four-byte string:
GS W 203 0
Or, to set the width of the printing area to two inches at the default
horizontal motion unit of 1/203 units per inch, send the four-byte
string:
GS W 150 1
Where 2 inches = 406/203, and 406 = (1 X 256) + 150.
←
Printable area 576 dots
→
←
Left margin
→ ←
Printing area width
→
Exceptions:
This command is effective only at the beginning of a line. If the setting
exceeds the printable area, the maximum value of the printable area is
used. The maximum printable area is 576 dots. See the illustration.