: Canon does not officially release these service tools to the public; they are intended for authorized service centers. Consequently, any "v4720" download you find online is from a third-party source.

This software is a portable application designed to communicate with Canon printers while they are in a specialized "Service Mode". Its primary function is to reset the internal counter that tracks the saturation of the ink absorbers—felt pads at the bottom of the printer that collect waste ink during cleaning cycles.

Always run the .exe file through a service like VirusTotal before opening.