Datalogic QuickScan Lite QW2100 - Manual (Page 277)

Decoding Levels
Product Reference Guide 267
Decoding Levels
Decoding Levels are used to configure a bar code symbology decoder to be very aggressive to
very conservative depending on a particular customer’s needs.
• Choosing Level 1 results in a very conservative decoder at the expense of not being able to
read poorly printed or damaged labels.
• Choosing Level 5 results in a very aggressive decoder. This aggressive behavior allows
decoding of poorly printed and damaged labels at the expense of increasing the likelihood
of decoding errors.
• Choosing Level 3, which is the default setting, allows the majority of product labels to be
decoded.
There are many factors that determine when to change the decoding level for a particular sym-
bology. These factors include spots, voids, non-uniform bar/space widths, damaged labels, etc.
that may be experienced in some bar code labels. If there are many hard to read or damaged
labels that cannot be decoded using a conservative setting, increase the decoding level to be
more aggressive. If the majority of labels are very good quality labels, or there is a need to
decrease the possibility of a decoder error, lower the decoding level to a more conservative level.