Appendix G; Bar Code Details - Datamax A-4310 Programmer's Manual

Appendix G

Bar Code Details

Unless otherwise noted all bar codes depicted here were produced using the ratio/module values of 00 and
height fields of 000 to cause the printer to produce symbols using default bar widths and height fields. See
Appendix F for the default values.
A: Code 3 of 9
Valid Characters: 0-9, A-Z, - . * $ / + % and the space character.
Variable Length.
Valid bar widths: The expected ratio of wide to narrow bars can range from 2:1 to 3:1.
The following example prints a code 3 of 9 bar code with a wide to narrow bar ratio of 3:1:
<STX>L
D11<CR>
1A00000001501000123456789<CR>
121100000000100Barcode A<CR>
E
B: UPC-A
Valid Characters: 0-9
Length: 12 digits. If the user provides 11 digits, the printer will compute the checksum. If the user
provides the checksum, the printer will check that it matches the expected checksum. If it does not
match, the printer will print out all zeros and the expected checksum. See Appendix P.
Valid bar widths: The fourth character of record is the width of the narrow bar in dots. All other bars
are a ratio of the narrow bar (2 times, 3 times, and 4 times the narrow bar width).
The following example prints a UPC-A bar code:
<STX>L
D11<CR>
1B000000015010001234567890<CR>
121100000000100Barcode B<CR>
E
Class Series Programmer's Manual 181