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2 | Scanning Tips
Aiming
Do not hold the scanner directly over the bar code, with the laser beam
perpendicular to 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. You can tilt the scanner up to 55°
forward or back and achieve a successful decode (Figure 2-3). Simple
practice quickly shows what tolerances to work within.
Figure 2-1. Maximum Tilt Angles and Dead Zone
CHAPTER 2: SCANNING TIPS
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