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Parameter Precedence Change
The operating order of the relevant parameters used in success of decoding bar code data with the
Decoder Learning function can be advanced for precedence. This advance will result in quick
response of continuously scanning multiple bar codes with similar quality. Since the precedence
order is stored in the RAM memory, it will be reset to the default order if a reset is performed on
the terminal.
Erratic Scanning Avoidance
This function retrieves the bar code quality rank by calculating the decoder easiness when
scanning a bar code. If the quality rank of scanned bar code is relatively low, the error rate
becomes high causing an erratic scanning to occur. To suppress the error rate, the function
automatically makes judgment on scanning with such the bar code as "Failure".
Settings
The Decoder Learning function can be switched to either "Enable" or "Disable". This switch
can be made using the functions or settings file provided by the Laser Scanner Library.
Note:
Enabling the Decoder Learning function improves the scanning performance of poorly printed
bar codes. However, it may also increase the likelihood of erroneous scanning depending on the
bar code. The following settings should therefore be used in conjunction with the Decoder
Learning function in order to prevent erroneous scanning.
• Turn off the scanning function for all types of symbologies other than those to be scanned.
• Turn off the scanning function for all digits with a number of places exceeding the actual
number being used (applies to symbologies for which the number of places can be set).
• Set the Check Digit function to "Enable" (applies to symbologies for which the Check Digit
function can be set).
Supported Symbologies by Decoder Learning Function
Below is a list of the symbologies which can be effectively scanned using the Decoder
Learning function.
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EAN, UPC-A, UPC-B
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EAN, UPC-A, UPC-B Add-ons
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UPC-E
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UPC-E Add-on
-
Code39
-
NW7
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Interleaved 2of5
-
Industrial 2of5
-
Code93
-
Code128
-
MSI
-
IATA
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