c3300FS-1120DN

Fix Kyocera FS-1120DN Error C3300: Fuser Failure

The Kyocera FS-1120DN error C3300 is a thermal alarm flagging that the fuser unit is failing to reach target temperature. Why does my Kyocera FS-1120DN show error C3300? This is often triggered by improper media or paper fragments that interfere with the fuser assembly. It is a critical safety stop for your printer.

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Common causes

  • 1Heating element (lamp/ceramic) failure.
  • 2Thermistor reporting incorrect temperature.
  • 3Fuser unit jammed with debris.
  • 4Power supply relay defect.

Solutions

Diagnóstico rápido

C3300 is a thermistor error. If the machine feels cold after 5 minutes, the heating element has likely snapped or the lamp is faulty.

Solución paso a paso

  1. Long power off: Unplug for 30 minutes.
  2. Inspect: Check the rear door for jammed paper covering the fuser unit.
  3. Clear: Carefully clear debris (use non-conductive tools).
  4. Restart: Power on to test the warming cycle.

Prevención y mantenimiento

Don't print on thick cardstock not meant for this model. Leave space behind the unit for heat dissipation.

Cuándo llamar a un técnico

If the error repeats, the fuser assembly is dead and must be replaced by a qualified technician.

Ficha técnica del equipo

  • Technology: Monochrome Laser
  • Speed: 30 ppm
  • Connectivity: USB, Ethernet
  • Capacity: 250 sheets
  • Compatible supplies: TK-1125 Cartridge
  • Recommended usage: Small Office
  • Drivers / official firmware

Steps to follow

  1. 1

    Cool down

    Power off for 20 minutes to allow the fuser to cool.

  2. 2

    Inspect

    Check rear outlet for paper jams.

  3. 3

    Restart

    Power on to see if error persists.

Frequently asked questions

It indicates a failure in the fuser unit system, usually temperature related.

No, there's a risk of overheating; keep the device off.

TK-1125 cartridge.

Use recommended media and ensure airflow.

Fix Kyocera FS-1120DN Error C3300: Fuser Failure | Vimazdev