e804-0000imageRUNNER ADVANCE C355i

Canon imageRUNNER ADVANCE C355i E804 Error: How to Fix

The canon imageRUNNER ADVANCE C355i error e804-0000 alerts to a cooling fan malfunction within the system. This error triggers when the machine detects that a fan is not meeting required RPM, preventing heat buildup. Immediate inspection is recommended to ensure components do not reach critical temperatures.

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Common causes

  • 1Heavy dust buildup stalling fan blades.
  • 2Mechanical bearing failure within the cooling fan.
  • 3Fan power cable disconnected.
  • 4Logic board fault not receiving speed signals.

Solutions

Diagnóstico rápido

If you hear a rattling noise or notice a total lack of airflow near the vents, it is likely the fan unit has failed. E804 is a protection trigger that locks the machine until the cooling status is verified.

Solución paso a paso

  1. Turn off and unplug the printer.
  2. Access the internal fans to check for debris.
  3. Clean the fan blades carefully using canned air.
  4. Power on to test; if the fan does not spin, it must be replaced.

Prevención y mantenimiento

Monthly dust removal from vents is crucial. Ensure the printer is in a ventilated area, away from direct heat sources. Using original GPR-53 supplies helps the machine run efficiently without unnecessary heat generation.

Cuándo llamar a un técnico

Fan replacement often involves partial disassembly of the printer's frame. If cleaning the dust doesn't resolve the E804 error, contact a technician for a part replacement.

Ficha técnica del equipo

  • Technology: Color multifunction laser
  • Cooling: Forced air ventilation
  • Connectivity: LAN/USB
  • Design: Compact
  • Consumibles: GPR-53 series
  • Recommended Use: Temperature-controlled offices
  • Drivers / Official Firmware

Steps to follow

  1. 1

    Power off

    Turn off the machine and let it cool down completely to prevent thermal damage.

  2. 2

    Clean vents

    Use compressed air to clean dust from the external ventilation grilles.

  3. 3

    Testing

    Turn the printer on and check if the fan operates or if the error remains.

Frequently asked questions

The E804 error indicates that the main board has detected one of the internal cooling fans is not rotating at the correct speed.

Yes, if the cooling fan fails, internal electronics can overheat and suffer permanent damage.

No, this error is unrelated to toner. Focus your attention on the printer's internal ventilation and airflow system.

Keep at least 15 cm of clearance around the printer to allow hot air to exhaust properly.