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Reading Techniques
The Xenon 1900/1902 scanners have a view finder that projects a bright red 
aiming beam that corresponds to the scanner’s horizontal field of view.  The 
Xenon 1910/1912 and Granit 1910i/1911i scanners have an aiming pattern .  
The aiming beam or pattern should be centered over the bar code, but it can be 
positioned in any direction for a good read.
Linear bar codes 
with aiming beam
2D Matrix symbol 
with aiming beam
Linear bar codes 
with aiming pattern
2D Matrix symbol 
with aiming pattern