Why Industrial Manufacturing Needs Mark Detection | Mark Sensors | Mark Detection Instruments

Why use mark detection?

Many products use patterned materials during manufacturing, such as printed packaging films. A small black square near the seal—called a registration mark—helps downstream processes locate features accurately.

During transport, materials can experience printing tolerance, stretching due to tension, vibration-induced jitter, or relative motion like slippage. These factors cause position errors that accumulate and reduce processing quality.

Relying solely on conveyor encoder positions may not provide the required precision, so a mark on the material itself serves as a position reference.

How is mark signal used?

The mark signal is used to calibrate material position; when an offset is detected the system compensates accordingly. Typically materials are divided into equal sections each with a mark; the known distance between marks lets the system detect deviations caused by transport errors.