Service Tool V3400.zip -

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.

Allows users to manually set the ink absorber counter value after physical cleaning. Service tool v3400.zip

Resetting the counter does not actually clean the ink pads. Continued use without replacing or washing the physical absorbers can lead to ink leaking onto your desk. Using V3400 on newer printer models (like MG3520

In the "Ink Absorber Counter" section, click to reset the main counter to 0%. ⚠️ Critical Risks and Warnings Service tool v3400.zip