Ocr Check Digit Multiplier - Motorola DS3508 Product Reference Manual

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OCR Check Digit Multiplier

Parameter # F1h BCh
This option sets OCR check digit multipliers for the character positions. For check digit validation, each character in
scanned data has an equivalent weight used in the check digit calculation. DS9808 OCR ships with the following
weight equivalents:
0 = 0
1 = 1
2 = 2
3 = 3
4 = 4
5 = 5
6 = 6
7 = 7
8 = 8
9 = 9
All other characters are equivalent to one (1).
You can define the multiplier string if it is different from the default.
121212121212 (default)
123456789A (for ISBN, Product Add Right to Left. See
For example:
ISBN
Multiplier
Product
Product add
ISBN uses modulo 11 for its check digit. In this case, 132 is divisible by 11, so it passes the check digit.
To set the check digit multiplier, scan the following bar code, then scan numbers and letters to form the multiplier
string from the alphanumeric keyboard in the Advanced Data Formatting Guide. Then scan
Advanced Data Formatting Guide.
OCR Check Digit Multiplier
A = 10 K = 20
B = 11 L = 21
C = 12 M = 22
D = 13 N = 23
E = 14 O = 24
F = 15 P = 25
G = 16 Q = 26
H = 17 R = 27
I = 18 S = 28
J = 19 T = 29
0 2 0 1
10 9 8 7
0 18 0 7
0+ 18+ 0+ 7+
U = 30
V = 31
W = 32
X = 33
Y = 34
Z = 35
Space = 0
OCR Check Digit Validation on page
1 8 3 9
6 5 4 3
6 40 12 27
6+ 40+ 12+ 27+
10-27)
9 4
2 1
18 4
18+ 4= 132
in the
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