Appendix I Position Scanner And Bar Code; Figure A-6 Scanner/Symbol Position - Microscan MS-820 User Manual

Appendix I — Position Scanner and Bar Code
In positioning the scanner in relation to the bar codes being scanner, consider the fol-
lowing:
• Position the scanner in a place devoid of sunlight, bright lights, or laser light from
other sources.
• Avoid excessive tilt, skew, or pitch. Maximum tilt is determined by label characteris-
tics and the number of decodes required. Maximum skew is ±40°; maximum pitch
1
is ±50°.
• Pitch or skew label or scanner a minimum of ±15° to avoid specular reflection, the
return of direct, non-diffused light.
Scanner

Figure A-6 Scanner/Symbol Position

1. Maximum tilt is determined by label characteristics and number of decodes required.
2. The specular reflection zone is a narrow zone straight out from the scanner in which direct
reflected light from a label can distort the scanner's ability to distinguish bars from spaces.
MS-820 Industrial Bar Code Scanner User's Manual
Position Scanner and Bar Code
2
Skew
axis
Direction
of travel
Tilt
axis
Pitch
axis
A-25