NCR 7197 II SERIES, Руководство пользователя

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7197 Series II Owner’s Guide Chapter 6: Commands
August 2011 99
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: 80 mm width 576 dots (the maximum printable area)
58 mm width 424 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.
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Printable area 576 dots
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Left margin
 
Printing area width
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Example:

MSComm1.Output = Chr$(&H1D) & Chr$(&H57) & Chr$(nL) & Chr$(nH)
Exceptions:
This command is effective only at the beginning of a line.