Scanning Techniques - Intermec Janus 2050 User Manual

JANUS 2050 Vehicle-Mount Computer User's Manual (4MB)

Scanning Techniques

The best scanning results are obtained by using the scanning angles shown in
the figure below. If the bar code is scanned straight on, the scan is reflected
directly back from the bar code and cannot be read by the scanner. This area is
called the dead zone.
Optimum Scanning Angles
Vertical
reading
angles (pitch)
1-16
39 nugget A
Horizontal
reading
angles (skew)
2050U.006
Dead zone:
Reflected light
may prevent
a good read
when you aim
straight on.