390es4132dn

OKI ES4132dn error 390: How to fix this printer issue

The OKI ES4132dn error 390 signifies a communication fault within the internal printer components, preventing normal operation. This message often appears when the printer cannot correctly identify the toner status due to sensor obstruction or signal interference. As a reliable office printer, the ES4132dn is generally robust, but timely troubleshooting of this 390 code is essential to resume workflow.

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Common causes

  • 1Toner cartridge chip read failure.
  • 2Obstruction of the internal sensor path.
  • 3Worn electrical contacts on the drum cradle.
  • 4Incompatible or faulty consumable installation.

Solutions

Diagnóstico rápido

The 390 error appears on the LCD panel during startup or after a print job. To confirm the issue, check if the printer makes mechanical noises or if the message stays fixed. This often implies that the printer's internal sensors are failing to detect the toner cartridge correctly.

Solución paso a paso

  1. Shut down the printer and unplug it from the wall outlet.
  2. Open the front door and pull out the toner and drum assembly.
  3. Inspect the toner contacts for dirt or debris and wipe them with a dry cloth.
  4. Reinsert the unit until it clicks into place.
  5. Plug the power cable back in and turn on the device.

Prevención y mantenimiento

Regular cleaning of the paper path and toner area is recommended every few months. Use original toner cartridges to ensure proper chip recognition. Keep the unit in a stable, dust-free environment.

Cuándo llamar a un técnico

If the 390 error persists after reseating all consumables, a technician should inspect the internal sensor board or the main wiring harness for physical damage.

Ficha técnica del equipo

  • Technology: Monochrome LED printer
  • Speed: Up to 40 ppm
  • Connectivity: USB 2.0, Ethernet
  • Capacity: 250-sheet input tray
  • Compatible Consumables: ES4132dn Series Toner Cartridges
  • Recommended Use: High-volume professional office use
  • Official drivers / firmware

Steps to follow

  1. 1

    Power cycle

    Turn off the printer and disconnect the power cord for one minute to clear temporary memory faults.

  2. 2

    Check consumables

    Remove the toner cartridge and drum unit, ensuring no paper debris is blocking the sensors.

  3. 3

    System restart

    Reinsert the components firmly and restart the device to recalibrate the sensors.

Frequently asked questions

This code typically points to a communication error between the mainboard and the toner sensor assembly.

It is not a fatal hardware failure, but it prevents printing tasks until the sensor verifies the consumable presence.

The ES4132dn uses high-capacity toner cartridges specifically designed for the ES4000 series.

Keep the internal rollers clean and ensure the firmware is updated regularly to prevent sensor read errors.

OKI ES4132dn error 390: How to fix this printer issue | Vimazdev