One-dimensional bar codes
36
Bar code descriptor for Dutch Post 4-State bar code
USPS Facing identification marking (FIM)
The only valid characters in this symbology are “A” (ASCII 65), “B” (ASCII 66), “C” (ASCII 67), and
“D” (ASCII 68). These characters in the data produce, respectively, the FIM-A, FIM-B, FIM-C, and
FIM-D patterns in the symbol. A single character of data producing one of the four defined FIM
patterns is the expected use of this symbology. If more than one character of data is provided, no
space is inserted between the FIM patterns generated by the data characters. Invalid characters in
the data are ignored, and do not produce any error message.
FIM symbols are printed according to the USPS specification. Bar height is fixed at 5/8 inch, and
bars and spaces have a fixed width of 1/32 inch. Cursor positioning is handled the same as for
one-dimensional symbologies.
Byte Field name Range
Default
value
Description
0-1 Symbology ID 00 18(hex)
24 (dec)
Selects Dutch Post 4-State symbology
2 Bar Width 26-3F (hex)
38-63 (dec)
32 (hex)
50 (dec)
Sets the bar width in 1/100 mm
3 Bar Pitch 14-18 (hex)
20-24 (dec)
16 (hex)
22 (dec)
Sets the number of bars that print per inch
4 Synchronization Bar
Height
66-98 (hex)
102-152 (dec)
7F (hex)
127 (dec)
Sets the synchronization bar height in
1/100 mm
5 Upward, Downward
Bar Height
A0-D8 (hex)
160-216 (dec)
BC (hex)
188 (dec)
Sets the upward and downward bar height
in 1/100 mm
6-15 Reserved
Notes on Dutch Post data:
• Data will consist of a 6-character postcode (4 digits followed by 2 letters), followed optionally by a
1-5-digit house/postbox/freepost number, followed optionally by an “X” (or “x”) separator character,
followed optionally by a 1-6 character house number extension (letters or digits).
• For foreign addresses, data may (instead of the above rules) consist of a 2-letter ISO country code,
followed by a 1-16 character foreign postcode. Data that begins with a letter will be assumed to be
following this format.
• Invalid characters or lengths in the post code, house/postbox/freepost number, house number
extension, country code, or foreign postcode will be flagged with an error.
Byte Field name Range
Default
value
Description
0-1 Symbology IDs 00 28 (hex) Specifies USPS FIM
2-15 Reserved
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