TallyGenicom Matrix Printer Programmer's Manual page 65

Checksum calculation for the symbol Cat
Data
Data Values
C Weights
K Weights
1) For "C", sum the products of the (C WEIGHTS * DATA VALUES).
2) Divide 395 by 47.
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.
4) Divide 557 by 47.
5) The value of "K" therefore is 40, corresponding to character /. Send to the printer:
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C <CTRL> +
12 46
5 4
6 5
(1 * 29) + (2 * 46) + (3 * 10) + (4 * 46) + (5 * 12) = 395
395 / 47 = 8 remainder 19.
(1*19) + (2*29) + (3*46) + (4*10) + (5*46) + (6*12) = 557
611 / 47 = 11 remainder 40
A <CTRL> +
10 46
3 2
4 3
T "C" "K"
29
1
2 1
Chapter 3 ANSI Bar Codes
61