The tool should show your printer model in the top bar. Reset Waste Ink: Find the "Main" tab.
This software is not officially released by Canon to the public; it is a technician's tool.
Next, go to the section below, ensure the Counter Value is set to 0% , and click Set .
The software will process the request, and a small "A function was finished" confirmation dialog box will pop up. Click .
Ultimate Guide to Canon Service Tool V5204: Safe Download and Usage
Before attempting to use V5204, ensure your printer model is compatible. Using the wrong software version can permanently corrupt your printer's mainboard.