Appendix G
Bar Code Details
Unless noted, all barcodes shown 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 a listing of the default values.
A:Code 3 of 9
Valid Characters: 0 – 9, A – Z
Valid bar dimensions: 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
1A00000001501000123456789<CR> 121100000000100Barcode A<CR>
E
B:UPC-A
Valid Characters: 0 – 9
Length: Twelve digits. If the user provides 11 digits, the printer will compute the checksum; or, if the user provides the checksum, the printer verifies it against an expected checksum. When these checksums do not match, all zeros will be printed along with the expected checksum. See Appendix N.
Valid bar dimensions: 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
<STX>L
D11
1B000000015010001234567890<CR> 121100000000100Barcode B<CR>
E
103 |