User Manual

Preliminary
4
P 370/470 Scanner
Aiming
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 achieve a
successful decode. Simple practice quickly shows what tolerances to
work within.
65°
65°
Scan
Beam
Scan
Beam
Bar Code Bar Code
Bar Code
Shaded area represents
dead zone (±2°)
41#6XFFHVVIXO
6FDQQLQJ
51#3RVVLEOH#6SHFXODU
5HIOHFWLRQ
61#6XFFHVVIXO
6FDQQLQJ