e005imageCLASS MF656Cdw

Canon imageCLASS MF656Cdw Error E005: Fix Guide

The Canon imageCLASS MF656Cdw error E005 indicates a fault in the developing unit assembly. This error typically occurs during the printer's initialization phase when the sensor fails to detect the unit's correct positioning or communication status. Follow this guide to resolve potential connection or sensor errors.

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Common causes

  • 1Faulty developing unit sensor.
  • 2Dirty electrical contacts on the cartridge.
  • 3Misaligned developing unit tray.
  • 4Hardware communication failure.

Solutions

Quick Diagnosis

If this error persists upon startup, it indicates that the printer engine cannot complete its internal color calibration. Verify if any cartridges appear to be incorrectly seated before proceeding.

Step-by-Step Solution

  1. Shutdown: Power off the device completely.
  2. Clean Contacts: Pull the toner cartridges out and wipe the electrical pins on the back with alcohol.
  3. Reseat: Reinstall all cartridges, ensuring they click into place.
  4. Power Cycle: Turn the printer back on to re-run the initialization sequence.

Prevention and Maintenance

Regular maintenance involves cleaning the interior print path every 10,000 pages. Using genuine Canon toner ensures that sensor communication remains stable and free from interference.

When to Call a Technician

If the E005 error continues to appear after reseating all consumables, the internal ITB unit (developing unit) may be faulty and require professional inspection.

Device Technical Sheet

  • Technology: Color Laser MFP
  • Performance: 22 ppm
  • Connectivity: Wi-Fi, USB, LAN
  • Input: 250 sheets
  • Consumable: Canon 069 / 069H
  • Recommended Use: Enterprise
  • Official Support / Drivers

Steps to follow

  1. 1

    Check Consumables

    Open the side panel, remove the toner cartridges, and verify the transfer belt is clean.

  2. 2

    Clean Contacts

    Use isopropyl alcohol to clean the metallic contacts of the developing unit.

  3. 3

    Restart Printer

    Power off and on to clear the error state and allow the unit to recalibrate.

Frequently asked questions

Error E005 signifies a sensor or communication issue with the developing unit.

Yes, it stops the printer from calibrating color, effectively disabling printing.

Canon 069 or 069H series cartridges.

Keep the print bay clear of dust and debris with a dry cloth.

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