If you are seeing a specific on the screen or the tool, let me know: What is the exact printer model (e.g., MG3620, G3000)? What error message or number does the tool show? Are you trying to reset a Waste Ink Counter ? Canon Service Tool Errors during waste ink counters reset
Reset the Waste Ink Counter: Clear the 5B00 error code to resume printing. Canon service tool v3600