e04ts3520

Canon PIXMA TS3520 E04 error: Quick Fix Guide

The Canon PIXMA TS3520 E04 error appears when the printer fails to detect the installed ink cartridges. This issue often results from debris on the chip or an unseated cartridge. It is a common maintenance event that can be resolved by carefully inspecting the contacts to restore proper printing.

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Common causes

  • 1Dirty electrical contacts on the cartridge chip.
  • 2Protective plastic strip left on the cartridge during installation.
  • 3Cartridge not fully pushed into the carriage housing.
  • 4Malfunctioning internal cartridge sensor.

Solutions

Quick Diagnosis

The E04 error is easily identified by the blinking light on the control panel. If you recently replaced your ink, check for leftover protective film on the cartridge contacts.

Step-by-step solution

  1. Power off the printer and disconnect the power cord.
  2. Open the front door and wait for the carriage to be accessible.
  3. Remove the cartridges and inspect the gold electrical pads.
  4. Wipe contacts with a dry, lint-free cloth to remove ink dust.
  5. Re-insert the cartridges until you feel them click into place.

Prevention and Maintenance

Handle cartridges only by the plastic edges to prevent oil transfer to the electronic chips. Keep the printer in a cool, dust-free environment to prevent sensor errors.

When to call a technician

If you have cleaned the contacts and re-seated the ink but the printer still displays E04, the internal cartridge sensor or carriage motor may be faulty.

Technical specifications

  • Technology: FINE Inkjet
  • Print speed: Up to 7.7 ipm (Black)
  • Connectivity: Wireless LAN
  • Consumable: PG-245 / CL-246 series
  • Usage: Home office
  • Official drivers / firmware

Steps to follow

  1. 1

    Open cartridge door

    Lift the front cover and wait for the carriage to move to the center.

  2. 2

    Remove cartridges

    Pull out the blinking cartridge and check for any remaining plastic protection strips.

  3. 3

    Clean contacts

    Use a dry, lint-free cloth to gently wipe the golden electrical contacts.

Frequently asked questions

The E04 error code indicates that the printer cannot detect the ink cartridge due to dirty contacts or improper seating.

No, it is usually a simple maintenance issue that can be fixed in a few minutes.

This model uses the PG-245 and CL-246 ink series.

Only clean them if an error appears or if you notice print quality degradation.