010-399b305

Error 010-399 Xerox B305: Fuser Unit Fault

The Xerox B305 error 010-399 is a system error triggered by the thermal sensor, indicating the fuser unit is not reaching the required temperature.

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Common causes

  • 1Fuser heating element failure.
  • 2Thermistor reporting inaccurate temps.
  • 3Voltage instability.
  • 4Mechanical fuser blockage.

Solutions

Diagnóstico rápido

The machine will stop completely. A fuser failure is indicated by the display panel status.

Solución paso a paso

  1. Cool down: Power off for 20 minutes.
  2. Inspect: Check back output for jams.
  3. Restart: Try a power cycle.

Prevención y mantenimiento

Use stable power sources and genuine media.

Cuándo llamar a un técnico

If the error reappears immediately, the heating element or thermistor is broken.

Ficha técnica del equipo

Frequently asked questions

This signifies a heating issue in the fuser assembly, preventing proper print processing.

It is a hardware issue that requires immediate attention and prevents printing for safety.

The B305 series uses proprietary Xerox high-yield cartridges.

Ensure proper power supply and avoid printing on non-standard media.