
GETTING STARTED 
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1 
1.3  SCANNING BAR CODES WITH THE DLL2020 15 cm  
The DLL2020 is an omnidirectional scanner featuring a 4-directional scan 
field with a 16-line scan pattern. Bar codes can easily be read by 
presenting them to the scanner. The scan volume is illustrated in the 
figure above. The optimal reading zone lies between 3 and 15 cm from 
the scanner window. However, bar codes can still be read up to 25 cm 
(10 inches) from the scanner window. 
Z 
X  25 cm  15 cm 
3 cm