e805-0000imageRUNNER 1643i

Canon imageRUNNER 1643i error E805: Troubleshooting Guide

Canon imageRUNNER 1643i error E805-0000 points to a cooling system failure involving the internal fan. This error happens when the controller detects improper rotation speeds. To fix error E805 in your imageRUNNER 1643i, clean the vents and verify that no mechanical obstructions exist.

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Common causes

  • 1Excessive dust build-up preventing blade movement.
  • 2Internal fan motor bearing failure.
  • 3Disconnected fan power connector.
  • 4Faulty fan tachometer sensor preventing speed signal.

Solutions

Diagnóstico rápido

If you hear a grinding noise or notice the rear panel is exceptionally hot, the E805 error is active. Check that no cables are tangled in the fan assembly.

Solución paso a paso

  1. Visual Inspection: Turn off the device and check for physical debris blocking the rear fan grille.
  2. Dust Removal: Use compressed air to blow out any accumulated dust from the fan blades.
  3. System Reset: Turn the printer on again and listen for the fan to start spinning steadily.
  4. Professional Check: If E805 remains, the fan motor might be seized and require a replacement.

Prevención y mantenimiento

Leave at least 6 inches of clearance behind the device for adequate airflow. Use a vacuum with a soft brush to clean the air intake grilles once every quarter.

Cuándo llamar a un técnico

If the fan remains static after cleaning, the motor assembly likely needs to be replaced by a certified technician.

Ficha técnica del equipo

  • Technology: Monochrome Laser
  • Speed/Performance: 43 ppm
  • Connectivity: USB, Ethernet, Wi-Fi
  • Paper Capacity: 650 sheets
  • Compatible Consumable: Canon 057 / 057H Series
  • Usage: Heavy-duty office environment
  • Official Drivers / Firmware

Steps to follow

  1. 1

    Visual Inspection

    Turn off the device and check for physical debris blocking the rear fan grille.

  2. 2

    Dust Removal

    Use compressed air to blow out any accumulated dust from the fan blades.

  3. 3

    System Reset

    Turn the printer on again and listen for the fan to start spinning steadily.

  4. 4

    Professional Check

    If E805 remains, the fan motor might be seized and require a replacement.

Frequently asked questions

The E805 code means the main cooling fan is not spinning at the required speed, triggering a warning to prevent overheating.

Yes, stop using the machine immediately to avoid potential heat damage to internal circuit boards.

Not directly, but using low-quality generic toner often results in high amounts of loose dust, which can clog fans faster.

Keep the printer in a clean environment and wipe the external ventilation vents regularly.