Datamax-O'Neil Class Series Programmer’s Manual - Manual (Page 220)

Appendix G – Barcode Details
Class Series Programmer’s Manual 206
<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 bar code
scanners. An erroneous bar code 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 ‘\’ (92
10
) will be
interpreted by the scanner as two backslashes ‘\\’.
Example 1: The variable length example encodes “AZTEC” with no ECI input, and 23% error
correction, and prints the bar code. A line of text is also printed.
<STX>L
D11<CR>
1W1f00000001501000000AZTEC<CR>
121100000000100Barcode W1f<CR>
E
Barcode W1f
Example 2: The specified length example includes a byte count field for all bytes that follow until the
end of the bar code data. The byte count is 17. The symbology encodes
“AZTEC<CR>barcode”, and prints the bar code. Notice that a <CR> does not terminate
the bar code format record. A line of text is also printed.
<STX>L
D11<CR>
1W1F000000015010000170000AZTEC<0x0D>barcode
121100000000100Barcode W1F<CR>
E
Barcode W1F
Functions Not Supported
•Structured Append
•Reader Initialization Symbol Generation
•Module shaving