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Chapter 5: Programming commands 51
A776-PG00001 C 12/09 A776 (B780) Programming Guide
Select justication
ASCII ESC a n
Hexadecimal 1B 61 n
Decimal 27 97 n
Value of n: 0, 48 = Left aligned
1, 49 = Center aligned
2, 50 = Right aligned
Range of n: 0–2, 48–50
Default: 0 (Left aligned)
Species the alignment of characters, graphics, logos, and bar codes.
The command can be enabled or disabled for the slip. Default is disabled for the slip on A776, and enabled on B780.
Exception
This command is valid only when input at the beginning of a line.
Set left margin
ASCII GS L nL nH
Hexadecimal 1D 4C nL nH
Decimal 29 76 nL nH
Range of nL: 0–255
Range of nH: 0–255
Default: 576 dots (the maximum printable area)
Values of n:
nL = low byte = Remainder after dividing n by 256
nH = high byte = Integer after dividing n by 256
The command can be enabled or disabled for the slip. Default is disabled for the slip on A776, and enabled on B780.
Formulas
Sets the left margin of the printing area. The left margin 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),
described in this manual.
The width of the printing area is set by the set printing area width command (1D 57), which follows this command.
If the setting exceeds the printable area, the maximum value of the printable area is used. The maximum printable
receipt area is 576 dots on the receipt and 420 addressable dots on the slip. See the illustration on the next page.
To set the Receipt left margin to one inch at the default horizontal motion unit of 1/203 inches, send the four-byte
string:
GS L 203 0
Or, to set the left margin to two inches at the default horizontal motion unit of 1/203 units per inch, send the four-byte
string:
GS L 150 1
Where 2 inches = 406/203, and 406 = (1 X 256) + 150, derived from decimal to hexadecimal conversion:
406/256 = 1 (nH) with remainder 150 (nL)
Continued . . .