Adjusts the printer's region settings if the logic board has been replaced. Compatibility and Requirements

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.

Requires a USB cable connection; the tool cannot communicate with the printer over Wi-Fi. 🚦 How to Use Service Tool V3400

is a utility package used to reset the internal counters and perform maintenance on various Canon PIXMA and MP series printers. It is primarily sought by users facing the "Waste Ink Pad Full" error (often indicated by error codes like 5B00 or E08 ), which effectively locks the printer to prevent ink leaks. 🛠️ Primary Functions

Release both buttons. The green power light should stay solid once the printer is ready.

Includes widely used series like iP (e.g., iP2700, iP4800), MP (e.g., MP230, MP280), and MG (e.g., MG2120, MG5240).

Please tell me your so I can confirm if this tool is safe for your device. Service tool v3400 does not work on Canon Pixma Mg 3520

Before running the executable from the ZIP file, the printer must be placed in . Enter Service Mode: Turn off the printer but keep it plugged in. Hold the Resume button and press the Power button.