RJS Inspector D4000 Laser (FIRMWARE version A.05 and Earlier) - Manual (Page 56)

Appendix H Operator ’ s Guide
RJS, Minneapolis, MN 002-5568 50
Figure 1 – Scanning angle and distance
Scan distance – See Fig. 2
Scan Angle 30 degrees
From Vertical
Figure 2 – Optimum beam width and placement
Bar code centered in laser beam
*W
*2W
* Adjust scan distance at minimum 2” (51 mm) or the width of the laser beam is approx-
imately two times the width of the bar code.
Special Considerations
When scanning codes on a low contrast substrate like brown corrugated material or a
specular substrate such as shiny aluminum or plastic material, a scan angle other than 30
degrees from vertical may produce better decoding characteristics. Contact RJS Technical
support if scanning problems occur.