Motorola Symbol LS3408 - Aiming

2 - 4 Symbol LS3408 Product Reference Guide
Aiming
Do not hold the scanner directly over the bar code. Laser light reflecting directly back into the scanner from the bar
code is known as specular reflection. This specular reflection can make decoding difficult.
The scanner can be tilted up to 65° forward or back and achieve a successful decode (Figure 2-3). Simple practice
quickly shows what tolerances to work within.
Figure 2-3 Optimum Scan Angles
65°
65°