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8) Be sure to keep spaces on both right and left sides of a bar code.
Spaces are different depending on the types of the bar code.
[Reference]
GS h, GS w, GS H, ESC L, ESC W, ESC FF
GS H n
[Name]
Turn HRI characters print mode ON/OFF
[Format]
ASCII
GS
H
n
HEX
1D
48
n
Decimal
29
72
n
[Range]
n = 0, 1
[Description]
GS H n
turns HRI characters print mode on or off.
When the LSB(least significant bit) of
n
is 1, HRI
characters print mode is turned on; When it is 0, HRI
character print mode is turned off.
The default setting is n=0.
ESC Z m n k d d1…dn
[Name]
Print 2D barcode
[Format]
ASCII ESC
Z
m n k d d1…dn
HEX
1B
5A
m n k d d1…dn
Decimal 27
90
m n k d d1…dn
[Range]
1
˺
m
˺
7
0
˺
n
˺
8
2
˺
k
˺
5
1
˺
d
˺
65535
[Description]
Print 2D bar code (PDF417 format).
m
specifies column number of 2D bar code.
n
specifies security level to restore when bar code image is damaged.
k
is used for define horizontal and vertical ratio.
d
is consist of 2 byte. 1st byte is lower number. And 2nd byte is upper
number.