Paxar TCMPCL2PR manual Sum of Digits Calculation, 10 8 =

MPCLII Packet Reference Manual

4.Divide the sum of the products by the modulus (10 in this case), only to the whole number. The balance is called the remainder.

9

1098

90

8

5.Subtract the remainder from the modulus.

The result becomes the check digit. In this case, the check digit is 2.

10 - 8 = 2

Sum of Digits Calculation

This is an example of how the printer uses Sum of Digits to calculate a check digit for this data:

5 2 3 2 4 5 2 1 9

1.Weights are applied to each digit, starting with the last digit in the weight string. They are applied right to left, beginning at the right-most position of the field.

Remember, a weight string must contain at least two different numbers. This example has a weight string of 1,2,3,4.

field:5 2 3 2 4 5 2 1 9

weight string: 4 1 2 3 4 1 2 3 4

2.Each digit in the field is multiplied by the weight assigned to it:

field:5 2 3 2 4 5 2 1 9

weight string: 4 1 2 3 4 1 2 3 4

products: 20 2 6 6 16 5 4 3 36

5-16