1720PIXMA TR7020a

Error 1720 Canon PIXMA TR7020a: Solution

The Canon PIXMA TR7020a error 1720 is an alert meaning the printer cannot recognize one of the ink cartridges, usually due to an installation error or dirty contacts. This issue is common and typically solved with a simple cleaning of the connections between the head and the cartridge.

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Common causes

  • 1Contaminated or dirty cartridge gold contacts.
  • 2Cartridge incorrectly seated in the head housing.
  • 3Cartridge microchip failure after ink depletion.
  • 4False contact due to oxidation on the print carriage.

Solutions

Quick Diagnosis

The error 1720 activates when the ink cartridge's microchip does not communicate correctly with the print carriage. Check if you have recently replaced cartridges or if the unit has received an impact.

Step-by-Step Solution

  1. Access: Open the printer lid and wait for the carriage to move to the center.
  2. Removal: Take out the cartridges (both black and color).
  3. Cleaning: Use a soft, dry, lint-free cloth to clean the gold dots (contacts) on the cartridge and inside the carriage.
  4. Installation: Insert the cartridges again ensuring the lock clicks.
  5. Verification: Close the lid and check if the error message disappears.

Prevention and Maintenance

When handling cartridges, never touch the gold contacts directly; natural skin oils can interfere with signals and cause read errors.

When to Call a Technician

If after cleaning contacts and testing with new cartridges the 1720 error persists, the print carriage or the internal data ribbon cable may be defective.

Equipment Specs

  • Technology: FINE Inkjet
  • Speed/Performance: 13/6.8 ipm
  • Connectivity: Wi-Fi / USB
  • Feeding Capacity: 100 sheets
  • Compatible Consumables: Canon PG-260, CL-261
  • Recommended Use: Home printing
  • Official Drivers / Firmware

Steps to follow

  1. 1

    Removal

    Open the access cover and remove the ink cartridges.

  2. 2

    Contact cleaning

    Wipe the gold contacts on the cartridge with a clean, dry cloth.

  3. 3

    Reinstallation

    Insert the cartridge again until it snaps into place.

  4. 4

    Verification

    Close the cover and wait for the printer to detect levels.

Frequently asked questions

This code indicates that the cartridge recognition chip is not making good contact or has failed.

It could be a fault in the cartridge chip itself; try testing with another set of cartridges before diagnosing the unit.

Yes, original Canon cartridges are calibrated for perfect software recognition and reduce these errors.

Only the internal gold contacts with a dry cloth; never use liquids, as you could cause a short circuit.