User`s manual

MP-4000 TH POS Printer Rev.1.4 Programmer’s Manual

22-aug-2007

Firmware Release: 1.5

3.9 Barcodes

GS h n

[Function] Sets the height n of the barcode generated

[Format] ASCII GS h n

Hexadecimal 1D 68 n

Decimal 29 104 n

[Description] Each height unit corresponds to a dot of 0.125 mm, so the final height

is n x 0.125 mm where 1 ≤ n ≤ 255. The default is n=162.

GS w n

[Function] Determines the width of the barcode

[Format] ASCII GS w n

Hexadecimal 1D 77 n

Decimal 29 119 n

[Description] This command changes the barcode width where n=2 correspond to

normal width, n=3 is double width and n=4 is quadruple width. The

default is n=3.

GS H n

[Function] Choose the position of the human readable information (HRI) of the

barcode

[Format] ASCII GS H n

Hexadecimal 1D 48 n

Decimal 29 72 n

[Description] n=0: No HRI

n=1: On top of the barcode (default)

n=2: On the bottom of the barcode

n=3: Both on top and on the bottom of the barcode