5B00PIXMA TR8620a

Canon PIXMA TR8620a Error 5B00: Ink Absorber Full

The 5B00 error on the Canon PIXMA TR8620a indicates that the ink absorber pad is full or has reached its programmed limit. Every head cleaning cycle generates waste ink that collects in internal sponges. The device locks itself to prevent ink leakage once the internal counter reaches the factory-set maximum limit.

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Common causes

  • 1Accumulation of waste ink in the internal pad after thousands of cleaning cycles.
  • 2Firmware limit reached in the EEPROM memory blocking the unit for protection.
  • 3Excessive use of 'Deep Cleaning' head functions filling the pad quickly.
  • 4Lack of physical waste-pad maintenance throughout the equipment's lifespan.

Solutions

Diagnóstico rápido

This error typically occurs after years of heavy use. If the printer stops completely and displays '5B00', it means the waste ink counter has hit the safety threshold and requires attention.

Solución paso a paso

  1. Enter Service Mode: With the printer off, hold 'Stop' and then hold 'Power'.
  2. Reset Counter: While holding 'Power', press 'Stop' 5 times, then release both buttons.
  3. Use Service Tool: Most modern models require Canon Service Tool software via USB to reset the EEPROM counter to '0'.
  4. Hardware Warning: Resetting the counter does not physically empty the sponge; if the unit is old, there is a risk of ink overflowing.

Prevención y mantenimiento

  • Volume: If you print frequently, use 'Quiet' or 'Draft' modes to reduce automatic head cleaning cycles.
  • Optimization: Avoid repetitive manual head cleanings; only perform them if print quality is actually degraded.
  • Placement: Keep the printer on a level surface so waste ink distributes evenly throughout the absorber pad.

Cuándo llamar a un técnico

Because the 5B00 error implies physical saturation of the internal sponges, professional replacement is the safest route to prevent internal leaks or damage to internal components.

Ficha técnica del equipo

  • Technology: Inkjet with purge maintenance system.
  • Device Type: Office multifunction printer with fax.
  • Connectivity: Wi-Fi, Ethernet, Bluetooth.
  • Capacity: Dual paper feed (up to 200 pages).
  • Compatible Consumables: PGI-280 and CLI-281 ink cartridges.
  • Recommended Maintenance: Head cleaning only when strictly necessary.
  • Official Drivers / Firmware

Steps to follow

  1. 1

    Enter Service Mode

    Trigger service mode using the physical buttons on the control panel.

  2. 2

    USB Connection

    Connect the printer to a Windows PC via USB cable.

  3. 3

    EEPROM Reset

    Execute 'Clear Ink Counter' via specialized maintenance software.

  4. 4

    Reboot

    Restart the device to apply factory default counter settings.

Frequently asked questions

Yes, using service mode and software reset tools, but proceed with caution due to the physical ink saturation.

It continues to use the standard PGI-280 and CLI-281 series ink cartridges.

The printer will remain in a locked, non-functional state until the counter is reset or the absorber is addressed.

It varies by use; high-volume environments will reach this limit much faster than home offices.