Printronix SL5000r User Manual page 57

validator gives the bar code a failing grade. You can set the Defects parameter to a
percentage value from 0% to 100%. The lower the percentage value chosen, the stricter
the validator grades.
. .
1. Press . to take the printer offline and place the printer in Menu mode.
2. If necessary, press and
. .
3. Press . until VALIDATOR displays.
4. Press  until Defects displays.
5. Press + or – to scroll through the percentage values: 0% to 100%. The default is
21%.

6. Press to select the desired value.

7. Press  and
at the same time to lock the
printer offline.
8. Press PAUSE again to put the printer online.
Overall Grade
This menu item sets the value used by the validator for pass/fail threshold during the
analysis of bar codes. Instead of a letter grade, numbers are used to allow for more
resolution. The numbers can be translated to letter grades according to the 4.0 grade
table below.
Table 4. Grading Scale for Overall Grade
Letter Grade
A
B
C
D
F
Any bar code with a grade below this threshold value will cause the printer to display the
Overall Grade Fail error message (see "Error Messages" on page 79) and take the
appropriate error action. Higher values create a stricter pass criterion.
The Overall Grade is determined by taking the lowest grade obtained for any of these
bar code quality parameters: Decodeability, Percent Decode, Defects, Modulation, EC
Min, Rmin, and Symbol Contrast.
You can set the Overall Grade parameter to a value from 0.0 to 4.0. The default is 0.0.
Overall Grade Calculations
The validator follows the specified algorithm defined in the ANSI X3.182 specification
for determining the Overall Grade based on an average. Although it is not defined, the
validator truncates the result of all analysis parameters averages for a slightly stricter
grading.
A side effect of the ANSI specified algorithm is that the Overall Grade may be lower than
any of the averaged analysis parameters. This occurs because the Overall Grade is

at the same time to unlock the

Grade Numerical Range
3.5 to 4.0
2.5 to 3.4
1.5 to 2.4
0.5 to 1.4
0.0 to 0.4

key.
key, then press PAUSE to take the
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