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Defining a check digit scheme – Avery Dennison 9406 System Administrator Guide User Manual

Page 70

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Defining a Check Digit Scheme

See "Sample Check Digit Calculation" in this chapter if you
need help defining the Check Digit Scheme.

1.

Make a copy of the blank check digit field definition below
or the check digit worksheet in Appendix C, "Format
Design Tools." Use the copy for steps 2 through 7.

2.

Assign a number from 1 to 10 to identify this calculation
scheme. Write the number in box A2.

3.

Enter A in box A3 to add the check digit scheme.

4.

Decide how the printer will store the Check Digit field
definition.

R

Printer Memory

T

Temporary Memory

Write R or T in box A4.

5.

Assign a number from 2 to 10 to use as a

modulus in

check digit calculation. Write the number in box A5.

6.

Determine how many characters will be in the fields that
use this scheme,

not including the check digit. Write the

number in box A6. The maximum number is 29.

7.

How will the check digit be calculated? Write D for "sum of
digits," or P for "sum of products" in box A7.

8.

Determine what numbers to use as weights for check digit
calculation. Do not include a weight for the check digit.
You need a string of numbers equal in length to the
number in box A6. Enter the string of numbers in box A8.

NOTE: Use zero as a weight digit in positions containing

non-numeric characters.

Place double quotes around the string of numbers, like this:

"65432"

9406 System Administrator’s Guide

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