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[Reference]
GS k
ESC Z m n k d d1...dn
[Name]
Print 2D bar code
[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.