A795 User Guide: Programming Supplement
Chapter 4: Programming commands
51
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
(10 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.
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.
Printable Area 576 Dots
Left
Margin
Printing Area
Width
