Download 1. - Omron

SECTION 9
Troubleshooting
Countermeasure Examples
The following are only a selection of examples of possible countermeasures. Reading operation
will not necessarily be improved by performing the following operations and so execute a reading
to confirm correct operation.
Items
Possible problem
Dot code
Hollowing of dots
• The influence of hollowing can be decreased by increasing the field of vision and
thereby decreasing the size of the code image.
• The influence of dots can be reduced by activating the Dilate or Erosion function of
0. Image Adjust/Filtering.
• The influence of dots can be further reduced using the smoothing function (0. Image
Adjust/Filtering retry). The influence of hollowing can be decreased by adjusting the
BGS levels (0. Image Adjust/BGS levels).
Refer to page 94 (Sec.5).
Improving Reading
Lighting
Before countermeasure
After countermeasure
Before countermeasure
After countermeasure
SECTION 9
Improve reading accuracy by using the optimum lighting for the reading object.
Example:
Try the following countermeasure when performing reading for a code created by direct
marking with a laser on stainless steel.
Before countermeasure
(Oblique Lighting)
248
V530-R160
Operation Manual
After countermeasure
(Coaxial Lighting)