Motorola Phaser P460 Instrucciones de operaciones descargar pdf (Pagina 43)

3-16

P460/P360 Memory Scanners Product Reference Guide

Hold at an Angle

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 strong light can “blind”

the scanner and make decoding difficult. The area where specular reflection occurs is

known as a “dead zone.”

You can tilt the scanner up to 65° forward or back and still achieve a successful decode.

Simple practice quickly shows what tolerances to work within.

Figure 3-2. Maximum Tilt Angles and Dead Zone

Te s t S y m b o l s

To ensure your scanner is working properly, try scanning the following bar codes. If you have

trouble, refer to Troubleshooting on page 3-23.

CODE 128

65°

Scan

Beam

Scan

Beam

Bar Code Bar Code

Bar Code

Shaded area represents

dead zone (±2°)

1 2 ... 38 39 40 41 42 43 44 45 46 47 48 ... 207 208

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Motorola Phaser P460 Instrucciones de operaciones Pagina 43