Facing Identification Mark (FIM) is the type of postal bar code used in automated mail processing by the U.S. Postal Service. FIM is a set of vertical bars. FIM patterns are placed in the upper right corner along the top edge and two inches in from the right edge of letters and cards.
The FIM barcode on a card
The table below shows basic parameters of the FIM barcode.
Valid symbols: |
ABCD |
Length: |
Fixed, 1 symbol |
Check digit: |
No |
The FIM barcode consists of nine elements. Each element can be 1 (vertical bar) or 0 (space). Four barcodes are used:
FIM A: 110010011
FIM B: 101101101
FIM C: 110101011
FIM D: 111010111
So the data row should contain 1 of 4 available characters: A, B, C, D.
A "FIM C" barcode