501C6150dn

OKI C6150dn Error 501: Tray Sensor Failure

OKI C6150dn error 501 signals a failure in the input paper tray sensor. This prevents the printer from acknowledging that paper is available for the job. It is commonly solved by cleaning the optical sensors within the cassette path.

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Common causes

  • 1Dust on sensor
  • 2Debris
  • 3Misaligned tray
  • 4Sensor failure

Solutions

Diagnóstico rápido

The error appears as soon as you slide the paper tray in.

Solución paso a paso

  1. Remove the paper tray.
  2. Look inside the printer cavity.
  3. Use compressed air to clear the sensor area.
  4. Insert the tray firmly.

Prevención y mantenimiento

Avoid pushing the tray too hard; gently slide it until it locks.

Cuándo llamar a un técnico

If the sensors are clean and properly aligned but the error remains, the main board may fail to read signals.

Ficha técnica del equipo

Frequently asked questions

Clear the paper path and clean the internal optical sensors.

No, it's a sensor detection issue.

Use genuine C6150 toners.

Keep the tray area clean.