650ES5433

OKI ES5433 Error 650: Paper Tray Failure

OKI ES5433 error 650 appears when the paper tray sensor detects an anomaly, preventing the machine from taking sheets. If you ask why does OKI ES5433 show error 650?, it is usually due to an improperly seated tray or paper remnants obstructing the sensor. This is a mechanical error requiring physical cleaning of input components.

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Common causes

  • 1Tray presence sensor blocked by paper remnants or dust.
  • 2Tray inserted incorrectly into the chassis, losing sensor contact.
  • 3Premature wear of rubber (rollers) paper pick-up mechanism.
  • 4Humidity in the paper causing deformation and obstruction of the pass sensor.

Solutions

Diagnóstico rápido

Error 650 halts the printer right as it tries to start a job. If the unit doesn't even try to pick up paper, the error 650 confirms that the printer 'cannot see' the tray or assumes it's empty due to a blocked sensor.

Solución paso a paso

  1. Remove Tray: Pull the paper tray out of the printer completely to inspect the interior.
  2. Check Rollers: Clean the feeding rollers with a slightly damp, lint-free cloth.
  3. Alignment: Ensure the paper guides are correctly adjusted to the paper format width.
  4. Sensor Cleaning: Use compressed air in the area where the tray connects to the printer body.

Prevención y mantenimiento

Avoid loading more paper than the maximum allowed. Clean rollers every 20,000 pages to prevent loss of traction due to paper dust.

Cuándo llamar a un técnico

If the error 650 persists after cleaning the input area and adjusting the tray, there might be physical damage to the tray presence sensor.

Ficha técnica del equipo

  • Technology: LED.
  • Speed/Performance: 40 ppm.
  • Connectivity: LAN.
  • Feed Capacity: Standard 530-sheet tray.
  • Compatible Consumables: ES5433 toner.
  • Recommended Use: Offices with moderate to high load.
  • Official drivers / firmware

Steps to follow

  1. 1

    Remove Tray

    Pull the paper tray out of the printer completely.

  2. 2

    Check Rollers

    Clean the feeding rollers with a slightly damp, lint-free cloth.

  3. 3

    Alignment

    Ensure the paper guides are adjusted to the correct format.

Frequently asked questions

This error indicates a fault in the paper detection sensor or a tray that is not properly inserted.

Do not overload the tray and always use compatible, dry paper.

Regularly clean the traction rollers to prevent slippage.

Yes, damp paper curves and incorrectly triggers the passage sensors.

OKI ES5433 Error 650: Paper Tray Failure | Vimazdev