5B00MAXIFY MB5420

Canon MAXIFY MB5420 error 5B00: Ink Absorber Full

The Canon MAXIFY MB5420 error 5B00 indicates that the ink waste absorber is full and has reached its predetermined cycle limit. This safety feature prevents the printer from leaking ink during the head cleaning process. To fix the 5B00 error, users must reset the internal counter and often perform physical maintenance on the waste ink unit.

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Common causes

  • 1Frequent head cleans: Each cycle increases the waste count.
  • 2High print volume: Exceeding factory-set cycle counts triggers the warning.
  • 3Worn absorption pads: Saturated material needs cleaning or replacement.
  • 4EEPROM memory fault: Internal counter data corruption.

Solutions

Diagnóstico rápido

If you see the 5B00 error code on your MB5420, the printer's EEPROM counter for waste ink has been triggered. The machine will not allow printing or scanning until this counter is reset or cleared.

Solución paso a paso

  1. Service Mode: Boot the printer into service mode by pressing 'Stop' then 'Power'.
  2. Counter Reset: Connect to a PC and use the authorized Canon service tool to reset the ink absorber counter to zero.
  3. Physical Clean: If ink is visibly saturated inside the chassis, a professional must replace the absorption pads.
  4. Finalize: Restart the machine to apply the counter reset.

Prevención y mantenimiento

Reduce frequent head cleaning cycles to prolong the waste ink unit's life. Use high-quality PGI-2200 original ink to minimize unnecessary sludge accumulation.

Cuándo llamar a un técnico

If you lack experience with software-based service tools, avoid DIY resets as incorrect settings can brick your printer's motherboard.

Ficha técnica del equipo

  • Technology: Inkjet
  • Speed: Up to 24 ipm (B&W)
  • Connectivity: Wi-Fi, Ethernet, USB
  • Capacity: 500 sheets
  • Compatible consumables: PGI-2200 Ink series
  • Use: Small Office
  • Official drivers / firmware

Frequently asked questions

It means the ink waste counter has reached its maximum capacity.

No, the device will lock to prevent ink leakage inside the machine.

Uses PGI-2200 series high-yield ink cartridges.

Yes, cleaning or replacing it is advised to avoid internal mess.