Intermec SG20T1D User Manual page 23

SG20T Tethered Scanner User's Guide
If you are using bar code labels that are encoded in a different
symbology, you need to enable the symbology on your SG20T. Use
EasySet version 5.6.5.1 or later to enable and disable symbologies for
your scanner.
To scan with a 1D imager
1 Point the SG20T at the bar code label and hold the SG20T at a
slight angle 15 to 25 cm (6 to 10 in) from the label.
2 Pull the trigger, and direct the red beam so that it falls across all
bars in the bar code label.
Use this test bar code:
Code 39 Test Bar Code
*123456*
*123456*
Tip: Depending on your screen resolution, you can scan bar codes
displayed on your computer screen.
By default, when the SG20T successfully reads a bar code label, the
SG20T beeps one time, the status light briefly turns green, and the
scanner beam turns off.
3 Release the trigger.
Chapter 2 — Scanning with the SG20T
13