This application uses a Line-beam Laser Photoelectric Sensor.
This Line-beam Laser Photoelectric Sensor is ideal for printed areas.
Know-How
Conventional sensors could not detect printing because the sensing spot became too large when you set a long detection distance.
Benefit / Efficiency
Using a Line-beam Laser Sensor enables long-distance detection. Also, using the line beam prevents unstable operation of the Sensor caused by discoloration between letters.