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How to Fix Fuser Error 980 on OKI C332dn Printer

The error code 980 on your OKI C332dn printer indicates a critical fault in the fuser's heating circuit. It triggers as a hardware safety lockout when the unit fails to reach operating temperature within a specified limit.

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Common causes

  • 1Fuser temperature failed to rise within the specified time limit.
  • 2Dirty or misaligned metal contacts between the fuser and printer chassis.
  • 3Broken or disconnected fuser thermistor (thermal sensor).
  • 4Unstable mains voltage or use of inadequate power strips.

Solutions

Troubleshooting Steps for Fuser Error 980

This error locks the printer to prevent thermal runaways. Apply the following steps in sequence:

Method 1: Performing a Power and Thermal Reset

  1. Turn off the printer power switch located on the side panel.
  2. Unplug the AC power cord directly from the wall socket (avoid using power strips, UPS, or extension cords).
  3. Wait at least 20 minutes to let the internal rollers completely cool down.
  4. Open the top cover and pull out the fuser assembly using the two blue lock levers.
  5. Inspect the fuser for trapped paper scrap or toner build-up near the thermal sensor.
  6. Firmly re-seat the fuser, pressing down until it clicks securely into position.

Method 2: Check Power Supply Integrity

OKI printers require high peak currents to warm up. Unstable voltage can easily trigger error 980. Always ensure the device is connected directly to a reliable, dedicated wall outlet.

Steps to follow

  1. 1

    Power Off and Cool

    Power down the device and unplug it from the wall. Let it cool for at least 20 minutes.

  2. 2

    Inspect and Clean Fuser Contacts

    Remove the fuser and clean its gold-plated electrical contacts with a dry microfibre cloth.

  3. 3

    Direct Wall Connection

    Plug the printer directly into a wall outlet and boot to verify if the code clears.

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Frequently asked questions

If the error is caused by a temporary power drop, a cool-down cycle and a direct-to-wall reboot will clear it. However, if the thermistor is open, the fuser unit must be replaced.

The standard C332dn fuser has an estimated life of 60,000 pages under normal operation, though voltage spikes can shorten it.