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Verifying Check Digits
You can make the printer verify a check digit entered by the
operator.
1. Define the text or bar code field
on the Format Worksheet, as
shown in Chapter 2,
"Designing a Format."
2. Find Option 31 on the Format Worksheet. This value is
the option for check digits.
3. Write V in box R3, after 31. This value tells the printer to
verify a check digit. The check digit is the last digit in the
field.
4. Write the selector number of the check digit scheme (box
A2 ) after G.
Check Digit Verification on Copied Fields
The 9401/9402 printer does not verify a check digit on numeric
text fields that have been copied from a previous field.
For example, a text field with field Option 4 followed by field
Option 31 with the Verify option (as shown below) does not
work.
T,2,6,V,061,010,2,2,2,1,B,L,0,0
R,4,1,1,6,2
R,31,V,5
Instead, use the following procedure:
1. Place the Verify option on the operator-entered field.
2. Copy the verified field (including formatted data) into the
destination field.
Do not use with:
Option Description
42 Price
60 Incrementing
9401/9402 System Administrator’s Guide
4-4