Ocr Check Digit Multiplier - Motorola DS6878 Reference Manual

14 - 26 DS6878 Product Reference Guide

OCR Check Digit Multiplier

Parameter # 700
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. DS6878 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
in the Chapter 16, Advanced Data
Message
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+
Formatting.
U = 30
V = 31
W = 32
X = 33
Y = 34
Z = 35
Space = 0
OCR Check Digit Validation on page
1 8 3
6 5 4
6 40 12
6+ 40+ 12+
Chapter 16, Advanced Data
14-27)
9 9 4
3 2 1
27 18 4
27+ 18+ 4= 132
Formatting. Then scan
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