e-04SureColor SC-P400

Epson SureColor SC-P400 E-04 Error: Ink Detection Fix

The Epson SureColor SC-P400 error E-04 is a frequent warning regarding ink cartridge recognition. This code triggers when a cartridge chip fails to communicate with the printhead or when the printer detects inconsistent ink levels. To resolve the error E-04 on your SC-P400, ensure all cartridges are seated correctly and their contact chips are clean.

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Common causes

  • 1Chip contamination: ink residue obstructing electrical signals.
  • 2Improper seating: cartridge not snapped fully into its holder.
  • 3Damaged chip: electronic failure on the cartridge's chip.
  • 4Carriage pin issues: failed contact pins in the printhead carriage.

Solutions

Quick Diagnosis

The E-04 code typically alerts you to a specific cartridge. If the alert is generic, remove all cartridges and inspect the golden contact points for contamination.

Step-by-Step Solution

  1. Reseat cartridges: Remove all cartridges and check the gold contacts on the chip for any ink residue.
  2. Clean chip contacts: Gently wipe the gold contacts with a clean, dry cloth to ensure proper connectivity.
  3. System reboot: Insert the cartridges firmly until you hear a click, then restart the device.

Maintenance and Prevention

Avoid touching the gold chips on cartridges to prevent skin oil buildup. Keeping the printer's carriage area free of dust ensures a stable electrical connection.

When to Call a Technician

If cleaning the contacts does not resolve the E-04 error, the cartridge carriage contact board may have failed and require professional maintenance.

Technical Specifications

  • Technology: Inkjet
  • Typical Output Speed: High-quality photo speed
  • Connectivity: USB, Wi-Fi
  • Paper Capacity: High-capacity tray
  • Compatible Consumables: UltraChrome HiGloss 2 Cartridges
  • Recommended Use: Professional photography
  • Official Drivers / Firmware

Steps to follow

  1. 1

    Reseat cartridges

    Remove all cartridges and check the gold contacts on the chip for any ink residue.

  2. 2

    Clean chip contacts

    Gently wipe the gold contacts with a clean, dry cloth to ensure proper connectivity.

  3. 3

    System reboot

    Insert the cartridges firmly until you hear a click, then restart the device.

Frequently asked questions

Error E-04 indicates that a cartridge is not recognized or has dirty contacts.

If left unresolved, it can lead to printhead drying; address it as soon as possible.

Always use genuine Epson ink to avoid chip compatibility issues.

It can occur after frequent cartridge changes or due to buildup in the carriage area.