004-300B215DNI

Xerox B215DNI error 004-300: Fuser Failure Fix

The Xerox B215DNI error 004-300 is a critical thermal fault indicating that the fuser unit is unable to maintain the necessary temperature. This often occurs after a power spike or an interruption during a print cycle. Fixing this requires checking the power supply and, in some cases, hardware replacement. Reliable office printing depends heavily on the health of this thermal component.

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Common causes

  • 1Fuser Heating Element Failure: Internal lamp failure.
  • 2Power Supply Instability: Voltage fluctuations.
  • 3Forced Shutdowns: Interrupting warm-up cycles.
  • 4Internal Obstruction: Preventing heat transfer.

Solutions

Quick Diagnosis

If the printer displays error 004-300 and fails to enter ready mode, the heating element inside the fuser is likely compromised. Check if the error persists after a full cool-down period.

Step-by-step solution

  1. Power off the printer.
  2. Unplug the power cable from the back.
  3. Wait at least 30 minutes to ensure full thermal dissipation.
  4. Connect the printer directly to a stable wall outlet.
  5. Turn the machine back on and monitor the startup process.

Prevention and Maintenance

Use a surge protector or UPS to protect the sensitive electronics in the fuser. Keep the ventilation vents clear of obstructions to ensure efficient cooling after heavy print jobs.

When to call a technician

If the machine continues to report 004-300 after following the steps above, the fuser assembly itself is likely defective and requires a service technician to replace it.

Technical specifications

  • Technology: Monochrome Laser.
  • Speed: 31 ppm.
  • Connectivity: Wi-Fi, Ethernet.
  • Monthly duty cycle: 30k pages.
  • Compatible supplies: 106R04348/106R04349 toner.
  • Typical usage: Business/Office.
  • Official support

Frequently asked questions

It indicates a heating failure in the fuser unit, preventing proper toner adhesion.

No, turn it off immediately to allow the fuser unit to cool down.

Use genuine Xerox 106R04348/106R04349 cartridges.

Ensure the printer is plugged into a wall outlet and not an extension cord.

Xerox B215DNI error 004-300: Fuser Failure Fix | Vimazdev