User's Manual

OPN-4200n
Specifications Manual
9
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 : 72 mm from the front edge of the scanner
Bar code : JAN (resolution 0.26 mm, PCS 0.3) specified in Section 8.1.
MRD = Minimum reflectance of white space - Maximum reflectance of black bar
PCS =
Reflectance of white spece - Reflectance of black bar
Reflectance of white space
* Be sure to keep the optical window clean without dirt or scratches, or it may have a bad effect on
the reading characteristics.
8.4. Minimum Resolution
0.1 mm or more
<Conditions>
Bar code : Code 39 (resolution 0.1 mm) specified in Section 8.1.
Distance : 72 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 110 mm and resolution of 0.2 mm can be read
<Conditions>
Bar code : Code 39 (resolution 0.20 mm, PCS 0.9) specified in Section 8.1.
Distance : 127 mm from the front edge of the scanner
Angle : α = 0°, β = +15°, γ = 0°
Curvature : R = ∞
Figure 4: Wide Bar Code