Printronix Scan Vision - Manual (Page 11)

9
Reflectance Profile Screen
This screen displays a reflectance profile for SV unit’s entire scan path. An example is shown in
Figure 3 below.
Figure 3 – Reflectance Profile Screen
This high reflectance
span includes one of the
bar code quiet zones.
This high reflectance
span includes one of the
bar code quiet zones.
In this case, the bar code segment of the
profile is centered in the display,
therefore it is centered in the beam path.
The amplitude of the bar code
signal is in the desired location
between the yellow lines (10%
and 90% of dynamic range).