5b01MAXIFY GX4020

Canon MAXIFY GX4020 error 5b01: Fix guide

The Canon MAXIFY GX4020 error 5b01 is a notification indicating that the ink absorber pad counter has reached its maximum capacity. This message usually appears after heavy usage or frequent cleaning cycles. To resolve the error 5b01, one must reset the internal counter or physically replace the ink pad assembly. This printer is built for small office environments with high print demands.

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Common causes

  • 1Purge counter full: The device hit the limit of cleaning cycles defined by the manufacturer.
  • 2Hardware wear: The physical ink pads have reached their maximum absorption capacity.
  • 3Improper cleaning: Excessive use of maintenance functions has triggered the software safety alert.
  • 4Firmware communication: The internal system is not correctly processing the current ink status.

Solutions

Quick Diagnosis

The 5b01 error is easily identified as the printer enters a total lock-down state, refusing to process any print jobs. It is the most common hardware alert caused by the maintenance counter reaching its limit.

Step-by-step Solution

  1. Unplug the power cord from the electrical outlet.
  2. Enter service mode by holding the 'Stop' button while reconnecting the power.
  3. Press the 'Stop' button five times to access the hidden configuration menu.
  4. Use the official Canon service tool software to reset the counter to zero.

Prevention and Maintenance

Avoid running deep cleaning cycles unless absolutely required by poor print quality. Ensure the device sits on a level surface so the internal purge system functions correctly. Using original GI-26 ink supplies minimizes clogging and ink pad usage.

When to call a technician

If the error persists after a reset or if there are visible ink leaks at the bottom of the device, the physical pads are likely saturated and require professional replacement.

Device technical specifications

  • Technology: MegaTank Inkjet
  • Speed: Up to 45 ppm
  • Connectivity: Wi-Fi, Ethernet, USB
  • Feeding capacity: 250-sheet tray
  • Compatible consumables: GI-26 series
  • Recommended use: Small office / Home office
  • Official drivers / firmware

Steps to follow

  1. 1

    Power off

    Disconnect the power cable while the printer is currently powered on.

  2. 2

    Service mode

    Hold the Stop button and power the unit on simultaneously.

  3. 3

    Reset counter

    Use the official service tool to reset the ink pad counter.

Frequently asked questions

This error occurs when the internal ink purge counter reaches its maximum factory threshold.

It is a safety lockout; if not addressed, the printer stops printing to prevent potential ink spills inside the machine.

Use original GI-26 ink bottles to ensure optimal printer health and warranty coverage.

Run head cleaning cycles only when necessary and keep the printer in a clean environment.