Appendix G – Bar Code Details
240 Class Series 2 Programmer’s Manual
W1p: Intelligent Mail Barcode (IMB)
Valid Characters: 0-9
Length: 20, 25, 29 or 31 digits
Valid bar widths: The width and height multiplier values of 00 will produce a valid IMB
symbol.
Usage: The bar code height field is ignored since the symbol height is United States
Postal Service specific. This bar code represents a 20 digit tracking code and a zero,
five, nine, or eleven digit routing code on a letter or package for the USPS.
Example:
The following example prints an IMB bar code:
<STX>L
D11<CR>
1W1p000000050005001234567094987654321012345678
91<CR>
E
Barcode W1p
W1q: CODABLOCK
CODABLOCK is a two-dimensional, multi-row, stacked bar code. CODABLOCK A uses the
Code 39 character set and supports variable ratios. CODABLOCK E and F use the Code
128 character set and support only fixed ratios, while CODABLOCK E also adds FNC1
automatically to the beginning of the data.
Valid Characters: CODABLOCK A: 0-9, A-Z, - . * $ / + % and the space character; and,
CODABLOCK E and F: All ASCII characters.
Variable length
Syntax (spaces added for readability):
a W1q b c ddd eeee ffff g h ii jj k…k
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