LS2208 configuration

Hi,

 

Im using the LS2208 and another SL9001 for scanning barcodes. The SL9001 works perfect even long range, but the LS2208 is usless and i want to know how to alter the configuration or setting to enable it to read the barcodes with the same success. Help!

 

Please bear in mind im a complete tech novice thus reply in layman's terms!

Cheers,

Nichola