e04PIXMA MG3620

Fix Canon PIXMA MG3620 Error E04: Troubleshooting

The Canon PIXMA MG3620 error E04 is a common alert signaling that the printer cannot communicate with one of the installed ink cartridges. This error blocks print jobs until the connection is properly restored. Often, users find that this error can be solved by a simple reseating of the ink tanks.

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Common causes

  • 1Dust or dried ink obstructing the electrical contacts.
  • 2Cartridge not properly snapped into the carriage slot.
  • 3Defective chip in the ink cartridge causing signal interference.
  • 4Electrical failure in the carriage internal ribbon cable.

Solutions

Diagnóstico rápido

The error E04 is displayed when the printer's status monitor indicates a communication failure with the cartridges. If you see the warning lamp blinking, it confirms the unit has detected an electrical fault in the ink delivery system.

Solución paso a paso

  1. Open access: Open the front cover and wait for the carriage to move to the center.
  2. Remove: Carefully pull out the ink cartridges that are triggered by the warning.
  3. Clean contacts: Use a clean, dry, lint-free cloth to gently wipe the gold contacts on the cartridges.
  4. Reinstall: Firmly snap the cartridges back into their respective slots until they click.

Prevención y mantenimiento

Handle cartridges by the edges to avoid transferring oil from your skin to the gold contacts. Use high-quality original Canon cartridges, as third-party chips frequently experience connection failures that lead to E04 errors.

Cuándo llamar a un técnico

If the error persists with new, genuine cartridges, the underlying problem may be a damaged print head unit, requiring professional hardware support.

Ficha técnica del equipo

  • Technology: FINE Inkjet
  • Resolution: 4800 x 1200 dpi
  • Connectivity: Wi-Fi, USB 2.0
  • Capacity: 100-sheet rear tray
  • Compatible consumables: PG-240 / CL-241
  • Usage: Light home office
  • Official Drivers / Firmware

Steps to follow

  1. 1

    Open access

    Open the front cover to access the cartridge carriage.

  2. 2

    Clean contacts

    Carefully wipe the gold contacts of the cartridge with a lint-free cloth.

  3. 3

    Reinstall

    Reseat the cartridge and ensure it clicks into position.

Frequently asked questions

It means the printer cannot detect the ink cartridge, often due to dirty electrical contacts.

Yes, cleaning the gold contacts often resolves the issue unless the chip is physically broken.

This model uses Canon PG-240 and CL-241 series ink cartridges.

Perform regular head cleanings via the software and keep the printer in a dust-free environment.

Fix Canon PIXMA MG3620 Error E04: Troubleshooting | Vimazdev