Omron FQ2-S4 - If an Error Occurs

Reading DPM 2D Codes
136
FQ2-S4 User’s Manual
If an Error Occurs
If a teaching error occurs
If scanning of the 2D code fails, a teaching error message appears. It is likely that low contrast caused unstable
scanning. Adjust the brightness to increase the contrast of the 2D code.
Increasing the Brightness of the Image: p. 61