Service Tool V3400.zip -

Clears the 5B00 error, allowing the printer to function again after reaching its calculated limit.

Using V3400 on newer printer models (like MG3520 or G-series) can permanently lock the printer's service mode, requiring a logic board replacement or EEPROM flashing to fix. Service tool v3400.zip

This version of the tool is designed for older Canon models and specific operating systems. Clears the 5B00 error, allowing the printer to

While holding Power, release Resume and press it (or 6 for some MG models). While holding Power, release Resume and press it

Can print or clear EEPROM data to diagnose hardware issues or confirm new settings.

In the "Ink Absorber Counter" section, click to reset the main counter to 0%. ⚠️ Critical Risks and Warnings

A list of for this specific version? Help finding a newer version for a more recent printer? Instructions on how to physically clean the ink pads?