３１
When printer receives the command, it transfers one byte through TXD line of
the interface. Definition of said byte is shown as below.
Barcode commands
GS H n
Select HRI (Human Readable Interpretation) printing
Format:
ASCII :
GS H
n
Decimal :
29 72 n
Hexadecimal :
1D 48
n
Explanation:
u
0
<
n
<
255
n is define as:
n
Function
0
Not print HRI
others
Print HRI
u
default n = 0.
Value
Bit
Function
0
1
0
1
2
3
4
5
6
7
Cash Drawer on/off Pin
not defined
not defined
not defined
not in use
not defined
not defined
not defined
Low
------
------
------
0
------
------
------
High
------
------
------
------
------
------
------
３２
GS h n
Set barcode height
Format:
ASCII :
GS
h
n
Decimal :
29 104
n
Hexadecimal :
1D
6
n
Explanation:
This command set the bar code height as n dots where n = 1-255
，
default
n=50.
GS w n
Set barcode width
Format:
ASCII :
GS w
n
Decimal :
29 119
n
Hexadecimal :
1D 77
n
Explanation:
Set bar code width with n. n=2
～
3
The bar code width according to the n as shown below:
n
Thin element
width (mm)
Thick element
width (mm)
2
0.250
0.625
3
0.375
1.000
Default n = 2.
GS k m d1…dk NUL
GS k m n d1…
Print barcode
Format:
•
ASCII :
GS
k
m d1…dk NUL
Decimal :
29 107 m d1…dk
0
Hexadecimal :
1D 6B
m d1…dk
00
