User guide

A795 User Guide: Programming Supplement
Chapter 4: Programming commands
50
Select justification
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)
Specifies the alignment of characters, graphics, logos, and
bar codes on the receipt station according to the above
table.
Related information
On the Epson TM-T88, this command is valid only at the
beginning of a line.
Range of n on A793 is 0-255 using low 2 bits only:
00 left aligned
01 center
10 right aligned
11 center
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)
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.
See the set printing area width command in this document
for a description of that command.
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.
To set the 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.
Exceptions:
The command is effective only at the beginning of a line.
This command is ignored if the line buffer is not empty,
and only effects the receipt interface.
Printable Area 576 Dots
Left
Margin
Printing Area
Width