Appendix E (Quiet Zone Analysis); Quiet Zone Analysis; Addendums) - RJS Inspector 5000 Operator's Manual

Appendix E

Appendix E (Quiet Zone Analysis)

Quiet Zone Analysis

The Inspector 5000 trims data gathered during a scan to
approximately 10 times the X dimension on each side of
a bar code for all symbologies except UPC and EAN.
The areas are assumed to be quiet zones and are
included in the symbol analysis. If a low reflectance
object is detected in these areas, an Overall Symbol
Grade of F will result. The Defects calculation will be the
cause of the F grade and typically be a value greater than
50%.
Symbols should be scanned in both directions since the
Inspector 5000 is designed to be bi-directional.
Quiet Zone Analysis for UPC and EAN symbols are
described in the following tables. In cases where an
addendum is included in the bar code, an addendum gap
analysis is also performed.
Table F-1 (Acceptable Parameters - Symbols Without

Addendums)

Symbology Leading QZ
UPC-A 9X Minimum
UPC-E 9X Minimum
EAN-13 11X Minimum
EAN-8 7X Minimum
Table F-2 (Acceptable Parameters - Symbols With
Addendums)
Symbology Leading QZ
UPC-A 9X Minimum
UPC-3 9X Minimum
EAN-13 11X Minimum
EAN-8 7X Minimum
RJS, Minneapolis, MN
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Operator's Guide
Trailing QZ
9X Minimum
7X Minimum
7X Minimum
7X Minimum
Trailing QZ GAP Size
5X Minimum 9 - 12X
5X Minimum 9 - 12X
5X Minimum 7 - 10X
5X Minimum 7 - 10X
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