Gs a starting position of bar code, Gs dc2 set font to double height, Gs a – Epson LABELWRITER SE450 User Manual
Page 39: Gs dc2

Commands
None
GS A Starting Position of Bar Code
Description
Defines the distance from the left where the first barcode will print. The distance is
represented in n/203 inch (dot) increments. This command is used to center a barcode
on a text line.
Expression
ASCII
GS A n1 n2
Decimal
29 65 n1 n2
Hex
1D 41 n1 n2
Parameters
n1
the most significant byte
n2
the least significant byte
Inches/203 = (n1 * 256) + n2
Length
# of Dots
n1
n2
0.5
102
0
102
1.0
203
0
203
2.0
406
1
150
3.0
609
2
97
GS DC2 Set Font to Double Height
Description
Causes the current font to be printed at twice its normal height. The double-height
setting will remain in effect until the current line attributes are cleared
See Also
33