158 Xenon/Granit User Guide
Direct Illumination - Top and Bottom
This setting enables both top and bottom illumination. It is recommend when read-
ing printed label bar codes and DPMs on highly reflective surfaces.
Direct Illumination - Bottom
This setting enables just the bottom illumination. It is recommend when primarily
reading dot peen bar codes. You may need to tilt the scanner at an angle to read
from reflective surfaces.
Indirect Illumination
This setting is recommend when reading bar codes on curved or rough surfaces.
Low Contrast Data Matrix Enhancements
The Granit 1920i scanner reads low contrast Data Matrix codes by default. How-
ever, if you are having trouble reading non-dot peen Data Matrix bar codes, it may
be helpful to scan Low Contrast Data Matrix Enhancements Off
. Default = Low
Contrast Data Matrix Enhancements On.
Direct Illumination -
Top and Bottom
Direct Illumination -
Bottom
* Low Contrast Data Matrix
Enhancements On