The recognition rate is affected by the optical sensor's angle. For best results:
- Hold the pen so that the sensor faces downwards.
- Maintain a natural writing angle.
- Acceptable recognition angle: −20° to +40° (90° vertical standard).
Precautions:
- Direct sunlight may cause loss of recognition.
- Do not cover the optical sensor with your fingers.
- Do not apply pressure to the pen tip.
- Do not write on the edge of the page where there is no dot code.
- If the cap gets dirty, clean with a soft cloth or cotton swab.