5B00MAXIFY GX6020

Canon MAXIFY GX6020 Error 5B00: Maintenance Box Guide

Error 5B00 on the Canon MAXIFY GX6020 is a safety alert indicating that the ink absorber (maintenance box) is full. This is common after heavy print volume or multiple cleaning cycles. The fix involves physically replacing the maintenance cartridge and occasionally resetting the internal counter.

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Common causes

  • 1Physical capacity limit reached in the ink absorber after long-term use.
  • 2Frequent execution of deep cleaning cycles.
  • 3Internal logic board counter (EEPROM) reaching its limit.
  • 4Prolonged use without replacing the MC-G01 maintenance box.

Solutions

Diagnóstico rápido

This code is triggered by the internal EEPROM counter. When the ink absorber reaches its limit, the printer enters a lock state to prevent potential ink leakage into the chassis. The printer will stop responding to print commands until the maintenance box is serviced.

Solución paso a paso

  1. Locate the maintenance box on the rear of the printer.
  2. Unscrew the maintenance cover and slide the cartridge (MC-G01) out.
  3. Install the new maintenance cartridge until it is securely seated.
  4. Reset the printer to acknowledge the new hardware state.
  5. Perform a test print to verify the error is cleared.

Prevención y mantenimiento

Do not attempt to reset the counter without replacing the physical cartridge, as this may lead to internal damage. If you print infrequently, power the printer down correctly using the power button to minimize automatic maintenance cycles that fill the box. Keep firmware updated to ensure efficient counter management.

Cuándo llamar a un técnico

If the 5B00 error remains after the physical replacement of the maintenance box, there may be an issue with the printer's logic board sensors. Professional maintenance is advised to inspect the ink drainage system.

Ficha técnica del equipo

  • Technology: Thermal Inkjet.
  • Performance: Up to 45,000 pages/month duty cycle.
  • Connectivity: USB 2.0, Wi-Fi, Ethernet.
  • Paper capacity: 250-sheet cassette.
  • Compatible consumables: Canon MC-G01 Maintenance Cartridge.
  • Recommended use: Professional high-volume printing.
  • Official drivers / firmware

Steps to follow

  1. 1

    Locate

    Find the maintenance box cover on the rear of the unit.

  2. 2

    Remove

    Unscrew and remove the old MC-G01 cartridge.

  3. 3

    Replace

    Insert the new, original maintenance cartridge.

  4. 4

    Validate

    Power on the printer and confirm the error code is gone.

Frequently asked questions

No, you should not continue printing, as it could result in internal ink overflow and damage the printer.

It is not recommended, as the absorbent material is designed for single-use and needs to be replaced to ensure safety.

You need to purchase the Canon MC-G01 Maintenance Cartridge.

Avoid frequent manual deep cleanings and ensure the printer is turned off properly via the power button.