e002imageCLASS D570i

Canon imageCLASS D570i error E002: Fuser Repair Guide

The Canon imageCLASS D570i error E002 is a service code indicating a critical overheating fault in the fuser unit. This error triggers when the internal thermistor registers a temperature spike, forcing an emergency shutdown. Why is my Canon imageCLASS D570i showing error E002? It often results from hardware failure or obstructed cooling airflow. This compact machine is high-performance, but it relies on efficient thermal regulation.

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Common causes

  • 1Thermistor Failure: Sensor sends false overheating data.
  • 2Airflow Obstruction: Dust in the fan prevents cooling.
  • 3Electrical Instability: Unstable power supply causing fuser spikes.
  • 4Mechanical Friction: Worn pressure rollers causing extra heat.

Solutions

Quick Diagnosis

The E002 code appears immediately upon startup. If the exterior panel feels hot, the machine is genuinely overheating; if not, the thermistor is likely malfunctioning.

Step-by-Step Solution

  1. Rest Period: Power off and let the unit cool for 30 minutes.
  2. Clear Debris: Open the rear exit gate to ensure no paper or labels are sticking to the heat rollers.
  3. Direct Power: Connect to a wall outlet directly, avoiding power strips that may cause electrical jitter.
  4. Power Test: Reboot and check if the sensor resets.

Prevention and Maintenance

Regularly clean the rear fan area from dust. Use only genuine Canon 137 toner to maintain the expected toner-to-paper fusion viscosity.

When to Call a Technician

If the error persists after a proper cooldown and reset, the internal thermistor hardware is dead.

Equipment Technical Data

  • Technology: Monochrome Laser
  • Speed: 28 ppm
  • Connectivity: Wi-Fi, USB
  • Consumable: Canon 137 cartridge
  • Recommended Use: Home Office
  • Official drivers/firmware

Steps to follow

  1. 1

    Full power down

    Unplug the power cord and allow the printer to rest for at least 30 minutes to cool down.

  2. 2

    Physical inspection

    Open the rear cover and verify no labels or paper jams are blocking the heat rollers.

  3. 3

    Restart system

    Reconnect the unit directly to a wall power source to ensure consistent voltage.

Frequently asked questions

Error E002 indicates the fuser unit has reached an unsafe temperature, triggering a system lockout.

Yes, it is a critical safety measure to prevent permanent damage to the machine's components.

Use the Canon 137 cartridge series for proper operation.

Ensure proper ventilation and avoid running high-volume print tasks for extended periods.