Wasp Bar Code WLS 8400 FZ, WLS 8400 ER manual Aiming, Optimum Scan Angles

Scanning 2-7

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.

65°

65°

Figure 2-3. Optimum Scan Angles