When <ESC>0 is the leading data in the stream, it is interpreted as a FNC1 as used in
the Code 128 symbology, and specifically for UCC/EAN 128 applications. For
appropriately configured scanners this will be interpreted/transmitted as a ]C1
symbology identifier preamble. The printer does not validate UCC/EAN 128 data
syntax.
When <ESC>0 follows a single alphabetic or two numeric characters respectively, then
it also interpreted as a FNC1. For appropriately configured scanners this would be
interpreted/transmitted as a ]C2 symbology identifier preamble, and the alpha or
numeric characters preceding the FNC1 are Application Indicators assigned by AIM
International. The printer does not check AI validity. When <ESC>0 is anywhere else in
the data stream, a <GS> replaces it in the barcode symbol, as with UCC/EAN 128 field
separators.
<ESC>n
Is encoded as FLG(n), and is interpreted as signaling Extended Channel
Interpretation. When the value of n is from 1 to 6, it signals that the following n digits
comprise an extended channel identifier for use with ECI compliant barcode scanners.
An erroneous barcode symbol may result from failing to follow <ESC>n with n digits.
Any <ESC>0 following <ESC>n and not within the n digits will be encoded as FLG(0). In
the context of a FLG(n), any backslash "\" (9210) will be interpreted by the scanner as
two backslashes "\\".
Functions Not Supported
l
Structured Append
l
Reader Initialization Symbol Generation
l
Module shaving
Behavior
Valid Characters: All ASCII characters, depending upon the selected options.
Variable Length (W1f): This two dimensional barcode holds a large amount of data in
a small area and can provide a high level of error checking.
Specified Length (W1F): With a string four-digit length specifier, values 0x00 through
0xFF to be included within the data strings without conflicting with the DPL format
record terminators.
Sample 1
<STX>L
D11<CR>
1W1f00000001501000000AZTEC<CR>
121100000000100Barcode W1f<CR>
E
224
DPLCommand Reference
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