error-05ES9160 MFP

Error 05 OKI ES9160 MFP: Troubleshooting Guide

The OKI ES9160 MFP error 05 is related to a malfunction in the developer unit. This fault typically occurs when the printer fails to detect toner or when there is an obstruction in the flow of developer powder toward the drum. To rectify this issue, inspecting the condition of installed consumables is essential.

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Common causes

  • 1Connection failure between the developer unit and the chassis.
  • 2Toner exhaustion or defective cartridge with a damaged chip.
  • 3Developer powder spills blocking optical sensors.
  • 4Mechanical wear in developer unit gears.

Solutions

Diagnostic

If you see Error 05, check if the device reported low toner levels recently. Sometimes, removing and reseating the image unit can clear electrical contacts and resolve the alert.

Step-by-step Solution

  1. Turn off the device and open the front door to access the toner compartment.
  2. Remove the toner and developer unit to check for dust jams.
  3. Clean the golden contacts on the back of the cartridge with a dry, soft cloth.
  4. Reinstall the unit until it clicks into place and restart the machine.

Maintenance

Avoid third-party toners that leak residues inside the mechanism, causing sensor failures. Annual cleaning of the laser unit is vital to prevent image communication errors.

When to call a technician

If the Error 05 appears persistently after reseating supplies, the developer unit motor may have failed and requires professional replacement.

Technical Data

  • Technology: Laser multifunction printer
  • Speed: Up to 50 ppm (color)
  • Connectivity: USB, Ethernet, optional Wi-Fi
  • Feed capacity: 530 sheets standard
  • Consumable: Original ES9160 series toner
  • Use: Heavy Enterprise environment
  • Official Drivers / firmware

Steps to follow

  1. 1

    Check consumables

    Open the front cover and verify the toner cartridge is properly seated.

  2. 2

    Inspect developer

    Check if the developer unit has powder spills or mechanical jams.

  3. 3

    Restart

    Close covers and reboot the machine using the main power button.

Frequently asked questions

The error indicates a problem with toner detection or supply within the developer unit.

It requires attention, as the printer won't operate until the unit is fully functional.

Use original ES9160 series toner to prevent clogging and damage to the image unit.

Perform regular preventive maintenance and use only original supplies.

Error 05 OKI ES9160 MFP: Troubleshooting Guide | Vimazdev