e-107B2501

OKI B2501 error E-107: Overheating Issue

The OKI B2501 error E-107 is a safety warning indicating overheating in the fuser unit. The temperature sensor has surpassed safe thresholds, and the printer cuts power to the heater to prevent fire or deformation. This error typically requires an extended cooldown period.

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Common causes

  • 1Defective temperature sensor
  • 2Continuous high-volume printing
  • 3Blocked airflow
  • 4Fuser relay failure

Solutions

Quick Diagnosis

If you've just finished a large print job and E-107 appears, it's a normal thermal error. If it happens on a cold boot, the thermistor is faulty.

Step-by-step Solution

  1. Power off: Unplug the device to prevent board damage.
  2. Ventilate: Leave the unit in a cool, well-ventilated area.
  3. Restart: Do not force startup before the sensor stabilizes.

Prevention and Maintenance

Avoid placing printers flush against walls. Maintain a minimum 6-inch clearance at the rear.

When to call a technician

If E-107 persists after hours of cooling, the thermal sensor needs replacement.

Technical Specifications

Steps to follow

  1. 1

    Power off

    Turn off the machine immediately to dissipate excess heat.

  2. 2

    Ventilate

    Open the rear cover to allow air circulation around the fuser.

  3. 3

    Restart

    Wait 30 minutes before switching it on.

Frequently asked questions

The temperature sensor has detected heat outside safe operating limits.

Yes, the fuser can get permanently damaged if the error continues.

Only original supplies for OKI B2501.

Do not print large volumes continuously without breaks.

OKI B2501 error E-107: Overheating Issue | Vimazdev