Checksum calculation for the symbol cat – Tally Genicom Matrix Printer User Manual
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7265 Programmer’s Manual
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Copyright © 2004 TallyGenicom Chapter 3 ANSI Bar Codes
Checksum calculation for the symbol Cat
Data
C
<CTRL> +
A
<CTRL> +
T
"C"
"K"
Data Values
12
46
10
46
29
C Weights
5
4
3
2
1
K Weights
6
5
4
3
2
1
1) For "C", sum the products of the (C WEIGHTS * DATA VALUES).
(1 * 29) + (2 * 46) + (3 * 10) + (4 * 46) + (5 * 12) = 395
2) Divide 395 by 47.
395 / 47 = 8 remainder 19.
Therefore, the value of "C" is 19, which corresponds to character J.
3) For "K", sum the products of the (K WEIGHTS * DATA VALUES), starting with the newly
calculated "C" digit.
(1*19) + (2*29) + (3*46) + (4*10) + (5*46) + (6*12) = 557
4) Divide 557 by 47.
611 / 47 = 11 remainder 40
5) The value of “K” therefore is 40, corresponding to character /. Send to the printer:
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