NLV
-
3101
-
HD
Specificatio
ns Manual
21
8.3.
Printed Contrast Signal (PCS)
0.3 or higher
<Conditions>
MRD
: 32% and higher
(70% or higher reflectivity of space and quiet zone)
Distance
: 65 mm from the front edge of the scanner
Bar Code Sample
: UPC specified in Chapter 8. (Resolution: 0.33 mm, PCS: 0.3)
MRD = Minimum reflectance of white bar - Maximum reflectance of black bar
PCS =
Reflectance of white bar
‐
Reflectance of black bar
Reflectance of white bar
8.4.
Minimum Resolution
1D Code
: 3 mils (0.076 mm)
Code 39 specified in Chapter 8.1
GS1-Databar
: 5 mils (0.127 mm)
GS1 Databar Limited specified in Chapter 8.1
Stacked Code : 5 mils (0.127 mm)
PDF417, GS1 Databar Limited Composite specified in Chapter 8.1
2D Code
: 5 mils (0.127 mm)
QR Code and Data Matrix specified in Chapter 8.1
<Conditions>
Bar Code Sample
: The above codes specified in Chapter 8.1
Distance
: 65 mm from the front edge of the scanner
Angle
:
α
= 0°,
β
=
+
15°,
γ
= 0°
Curvature
: R =
∞
8.5.
Wide Bar Code
Code 39 with width of 70 mm and resolution of 0.2 mm can be read
<Conditions>
Bar Code Sample
: 0.20 mm Code 39 / PCS 0.9 specified in Chapter 8.1
Distance
: 95 mm from the front edge of the scanner
Angle
:
α
= 0°,
β
=
+
15°,
γ
= 0°
Curvature
: R =
∞
Figure 15: Wide Bar Code
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