10 - 26 DS3508 Product Reference Guide
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
A = 10
K = 20
U = 30
1 = 1
B = 11
L = 21
V = 31
2 = 2
C = 12
M = 22
W = 32
3 = 3
D = 13
N = 23
X = 33
4 = 4
E = 14
O = 24
Y = 34
5 = 5
F = 15
P = 25
Z = 35
6 = 6
G = 16
Q = 26
Space = 0
7 = 7
H = 17
R = 27
8 = 8
I = 18
S = 28
9 = 9
J = 19
T = 29
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 OCR Check Digit Validation on page 10-27)
For example:
ISBN
0 2 0 1 1 8 3 9 9 4
Multiplier 10
9 8 7 6 5 4 3 2 1
Product
0 18 0 7 6 40 12 27 18 4
Product
add 0+ 18+ 0+ 7+ 6+ 40+ 12+ 27+ 18+ 4= 132
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
End of Message
in the
Advanced Data Formatting Guide.
OCR Check Digit Multiplier
Summary of Contents for DS3508
Page 1: ...DS3508 Digital Scanner Product Reference Guide ...
Page 2: ......
Page 3: ...DS3508 Digital Scanner Product Reference Guide 72E 124801 05 Revision A March 2011 ...
Page 6: ...iv DS3508 Product Reference Guide ...
Page 7: ...v ...
Page 8: ...vi DS3508 Product Reference Guide ...
Page 28: ...1 6 DS3508 Product Reference Guide ...
Page 168: ...7 24 DS3508 Product Reference Guide ...
Page 174: ...8 6 DS3508 Product Reference Guide ...
Page 228: ...10 32 DS3508 Product Reference Guide ...
Page 295: ...Symbologies 11 67 Enable UPU FICS Postal 01h Disable UPU FICS Postal 00h ...
Page 314: ...11 86 DS3508 Product Reference Guide ...
Page 316: ...12 2 DS9808 Product Reference Guide ...
Page 318: ...13 2 DS3508 Product Reference Guide ...
Page 330: ...A 12 DS3508 Product Reference Guide ...
Page 338: ...B 8 DS3508 Product Reference Guide ...
Page 339: ...Appendix C Sample Bar Codes Code 39 UPC EAN UPC A 100 123ABC 0 12345 67890 5 ...
Page 342: ...C 4 DS3508 Product Reference Guide Maxicode QR Code US Postnet UK Postal ...
Page 367: ...Index 7 ...
Page 368: ...Index 8 DS3508 Product Reference Guide ...
Page 369: ...Index 9 ...
Page 370: ...Index 10 DS3508 Product Reference Guide ...
Page 371: ...Index 11 ...
Page 372: ...Index 12 DS3508 Product Reference Guide ...
Page 384: ......
Page 385: ......