The format for the ^BX instruction is:
^BXo,h,s,c,r,f,g
where
^BX = Data Matrix Bar Code
o = Orientation
Default value: N = Normal
Other values:
N = Normal
R = Rotated, 90 degrees clockwise
I = Inverted, 180 degrees
B = Read from Bottom Up, 270 degrees
h = Dimensions of Individual Symbol Elements
(one to width of label)
The individual elements are square, so this parameter
specifies both the module and row height. If this
parameter is zero or not given, the ^BY,“h” bar height
parameter will be used as the approximate symbol
height.
s = Quality Level
Default value: 0
Other values: 50, 80, 100, 140, 200
“Quality” refers to the amount of data that is added to
the symbol for error correction. The AIM specification
refers to it as the ECC value. ECC 50, ECC 80, ECC
100, and ECC 140 use convolution encoding; ECC 200
uses Reed-Solomon encoding. For new applications,
ECC 200 is recommended. ECC 000-140 should only
be used in closed applications where a single party con-
trols both the production and reading of the symbols
and is responsible for overall system performance.
c = Columns to Encode (“9” to “49”)
Odd values only for quality “0” to “140” (“10”-“144”);
even values only for quality “200.”
ZPL II COMMAND REFERENCE 169
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